New General Catalog Objects: NGC 5800 (original) (raw)

QuickLinks:
5800, 5801, 5802, 5803, 5804, 5805, 5806, 5807, 5808, 5809, 5810, 5811, 5812, 5813, 5814, 5815, 5816,
5817, 5818, 5819, 5820, 5821, 5822, 5823, 5824, 5825, 5826, 5827, 5828, 5829, 5830, 5831, 5832, 5833,
5834, 5835, 5836, 5837, 5838, 5839, 5840, 5841, 5842, 5843, 5844, 5845, 5846, 5847, 5848, 5849

Page last updated Sep 11, 2023 (Added Caldwell & other IDs and images for NGC 5823)
Page last updated Aug 4, 2022 (Added discovery credit for D357 to NGC 5822)
Updated and completed entries for NGC 5828 and its apparent neighbor (actually a much more distant galaxy)
Due to updates in several important databases, almost everything else below (which dates to 2017) has to be re-checked
Reformatting to current standards

NGC 5800
Discovered (Jul 8, 1834) by John Herschel
A magnitude 7(?) group of stars in Lupus (RA 15 01 51.0, Dec -51 56 36)

Historical Identification: Per Dreyer, NGC 5800 (= GC 4018 = JH 3585, 1860 RA 14 52 06, NPD 141 21.5) is "a cluster, pretty large, pretty rich, a little compressed". Pretty large only means an arcmin or so in size, so the cluster must just be the tighter grouping in the center of the image below.
Physical Information: A small grouping of a few (four or five?) moderately bright stars. About 5 arcmin? Pretty rich seems an exaggeration.

Above, a 12 arcmin wide region centered on NGC 5800

NGC 5801 (= PGC 53596)
Discovered (Jun 10, 1885) by Francis Leavenworth
Also observed (Jul 1899 to Jun 1900) by Herbert Howe
A magnitude 14.7 spiral galaxy (type Sb?) in Libra (RA 15 00 25.9, Dec -13 54 15)

Historical Identification: Per Dreyer, NGC 5801 (Leavenworth list I (#215), 1860 RA 14 52 20, NPD 103 17.7) is "very faint, very small, suddenly brighter middle, 1st of 3", the others being NGC 5802 and 5803. The second IC lists a corrected position (per Howe) of RA 14 52 44, NPD 103 20.8.
Physical Information: NGC 5801 is the westernmost of a trio of galaxies including NGC 5802 and 5803. Its apparent size is 0.9 by 0.6 arcmins; nothing else seems directly available, but if it is physically associated with NGC 5802, as its distorted shape suggests, it is about 350 million light years away and 90 thousand light years across.

Above, a 2.4 arcmin wide closeup of NGC 5801 and to its southeast, NGC 5802
Below, a 12 arcmin wide region centered on NGC 5801, 5802, and 5803

Corwin lists a possible companion (PGC 160371) ra RA 15 00 18.1, Dec -13 53 39

NGC 5802 (= PGC 53601)
Discovered (Jun 10, 1885) by Francis Leavenworth
Also observed (Jul 1899 to Jun 1900) by Herbert Howe
A magnitude 14.2 lenticular galaxy (type S0?) in Libra (RA 15 00 30.0, Dec -13 55 08)

Historical Identification: Per Dreyer, NGC 5802 (Leavenworth list I (#216), 1860 RA 14 52 20, NPD 103 18.7) is "very faint, very small, suddenly brighter middle, 2nd and brightest (of 3, the others being NGC 5801 and 5803)". The second IC lists a corrected position (per Howe) of RA 14 52 48, NPD 103 21.7.
Physical Information: NGC 5802 is the southernmost of a trio of galaxies, including NGC 5801 and 5803. Based on a recessional velocity of 7535 km/sec, the galaxy is about 350 million light years away. Given that and its apparent size of 1.3 by 0.9 arcmins, it is about 130 thousand light years across.

Above, a 2.4 arcmin wide closeup of NGC 5802 and NGC 5801, which see for a wide-field view
Corwin lists a possible companion (PGC 160375) at RA 15 00 26.8, Dec -13 57 35

NGC 5803 (= PGC 53609)
Discovered (Jun 10, 1885) by Francis Leavenworth
Also observed (Jul 1899 to Jun 1900 by Herbert Howe
A magnitude 14.8 lenticular galaxy (type E/S0?) in Libra (RA 15 00 34.5, Dec -13 53 40)

Historical Identification: Per Dreyer, NGC 5803 (Leavenworth list I (#217), 1860 RA 14 52 20, NPD 103 16.7) is "very faint, very small, suddenly brighter middle, 3rd of 3", the others being NGC 5801 and 5802. The second IC lists a corrected position (per Howe) of RA 14 53 16, NPD 103 20.2.
Physical Information: NGC 5803 is the easternmost of a trio of galaxies, including NGC 5801 and 5802. NGC 5803's apparent size is 0.9 by 0.4 arcmin; nothing else seems to be directly available, but if it is physically associated with NGC 5802 it is about 350 million light years away, and 90 thousand light years across.

Above, a 2.4 arcmin wide closeup of NGC 5803; see NGC 5801 for a wide=field view

NGC 5804 (= PGC 53437)
Discovered (May 15, 1787) by William Herschel
Also observed (May 13, 1830) by John Herschel
A magnitude 13.1 spiral galaxy (type SBb?) in Bo�tes (RA 14 57 06.8, Dec +49 40 08)

Historical Identification: Per Dreyer, NGC 5804 (= GC 4019 = JH 1895 = WH III 679, 1860 RA 14 52 31, NPD 39 45.3) is "very faint, very small, very suddenly much brighter middle, 6th magnitude star near". Though not noted in its NGC entry, it is the "3rd of 4", the others being NGC 5794, 5795 and 5805.
Physical Information: Apparent size 1.2 by 1.1 arcmin

NGC 5805 (= PGC 53435 = PGC 214349 = MCG +08-27-039)
Discovered (Apr 3, 1854) by R. J. Mitchell
A magnitude 15.0 lenticular galaxy (type E/SAB0?) in Bo�tes at RA 14 57 11.6, Dec +49 37 44

Historical Identification: Per Dreyer, NGC 5805 (= GC 4020, 3rd Lord Rosse, 1860 RA 14 52 31, NPD 39 47.5) is "small". Though not noted in its NGC entry, it is the "4th of 4", the others being NGC 5794, 5795 and 5804. Corwin states that Mitchell sketched the object to the south-southeast of NGC 5804. The position precesses to RA 14 57 07.6, Dec +49 38 41, about an arcmin to the northwest of that object; but that position and the galaxy itself are in the appropriate part of his sketch, so the identification is certain. Corwin adds that several of the objects in this area were mislabeled in the 1973 Revised NGC, and the result is a number of errors in the subsequent literature as to which galaxies correspond to which listings. NED and LEDA now list the correct galaxy, but many other references list PGC 53381 as NGC 5805, so that galaxy is discussed in the second entry following this one.
Discovery Notes: Although Dreyer credits the discovery to William Parsons, 3rd Earl of Rosse, he notes that many of Rosse's nebular discoveries were actually made by one of his assistants, in this case R. J. Mitchell.
NGC Definition: There is no doubt that NGC 5805 is PGC 53435, and as it happens, that the fainter galaxy to its southeast is a physical companion, so they are a pair. However, the fainter galaxy cannot be part of the NGC designation, as it is almost certainly too faint to have been seen by Mitchell, and if he had seen it, he would undoubtedly have added "extended" to his description of GC 4020. So it is not treated as part of this entry, but in the one immediately below.
PGC Designations: The brighter northwestern galaxy is cataloged as PGC 53435 in a number of references, but the PGC designation for the fainter southeastern galaxy is not recognized by any database (even HyperLEDA's, though it is used for lack of a better designation). Instead, the fainter galaxy is known by its position, as SDSSJ145712.17+493736.7.
Physical Information: NGC 5805 is the larger, northwestern member of a pair of galaxies, with an apparent size of 0.4 by 0.3 arcmin for the larger, brighter galaxy. The much fainter, smaller companion immediately to its southeast is a physical companion, as discussed in the following entry, but is not part of the NGC "object", as discussed above.

Above, a 12 arcmin wide SDSS image centered on NGC 5805, also showing NGC 5804
Above, a 0.75 arcmin wide SDSS image of NGC 5805 and its physical companion, "PGC 4541085"

"PGC 4541085" (= SDSSJ145712.17+493736.7)
Not an NGC object but listed here as a physical companion of NGC 5805
A magnitude 17(?) elliptical galaxy (type E0?) in Bo�tes at RA 14 57 12.2, Dec +49 37 37

NGC Designation: As noted in the entry for NGC 5805, although a physical companion of its larger neighbor, "PGC 4541085" is not part of the NGC entry, as it must have been too faint for Mitchell to notice, and if he had noticed it, his description of the pair would have certainly included "extended". Given that, there can be no possibility that the fainter galaxy is part of the NGC.
Note About PGC Designation: Although HyperLEDA assigns a PGC designation to this object, a search of the database for that designation returns no result, so it is shown in quotes. The SDSS designation should be used for any database search.
Note About NED Designation: NED treats this as part of NGC 5805, and as part of MCG +08-27-039; but as noted above, it is not part of NGC 5805, even though it is a physical companion, and whether it is part of MCG +08-27-039 is unknown, and no other reference seems to make that connection.
Physical Information: The 3K Vr for this object (as shown in NED for NED 5805 NED02) is almost identical to that of NGC 5805, so it is almost certainly a physical pair with NGC 5805, though there may be more of a difference in their distance from us and each other than implied by their images being "in contact", and the lack of any obvious distortion of either object in the few images available of the pair suggests that though almost certainly a gravitationally bound pair, they are not close enough to each other to cause any current distortions.

PGC 53381 (not = NGC 5805) (= PGC 84390)
Not an NGC object but listed here because often misidentified as NGC 5805
A 15th-magnitude spiral galaxy (type Sc?) in Bo�tes (RA 14 55 51.6, Dec +49 38 51)

Historical (Mis)Identification: See NGC 5805 for a discussion of the misidentification of PGC 53381 as NGC 5805 in the RNGC.
Physical Information: Based on a recessional velocity of 7840 km/sec, PGC 53381 is about 365 million light years away. Given that and its apparent size of 0.6 by 0.4 arcmin, it is about 65 thousand light years across.

Above, a 2.4 arcmin wide closeup of PGC 53381, often misidentified as NGC 5805
Below, a 12 arcmin wide region centered on the galaxy, also showing NGC 5794 and 5797
The "bright" star is 6th-magnitude object HD 132254, an F7 Main Sequence star

NGC 5806 (= PGC 53578)
Discovered (Feb 24, 1786) by William Herschel
Also observed (Apr 13, 1828) by John Herschel
A magnitude 11.7 spiral galaxy (type SBb?) in Virgo (RA 15 00 00.4, Dec +01 53 29)

Historical Identification: Per Dreyer, NGC 5806 (= GC 4021 = JH 1894 = WH II 539, 1860 RA 14 52 55, NPD 87 33.0) is "considerably bright, considerably large, extended 165��, suddenly brighter middle and nucleus".
Physical Information: Apparent size 3.2 by 1.6 arcmin

NGC 5807 (= PGC 53373)
Discovered (Sep 14, 1866) by Heinrich d'Arrest
A magnitude 13.9 compact galaxy (type C?) in Draco (RA 14 55 48.7, Dec +63 54 13)

Historical Identification: Per Dreyer, NGC 5807 (= GC 5775, d'Arrest, 1860 RA 14 53 00, NPD 25 31.8) is "very faint, very small, mottled but not resolved".
Physical Information: Apparent size 0.5 by 0.5 arcmin

NGC 5808 (= NGC 5819 = PGC 53251)
Discovered (Mar 16, 1785) by William Herschel (and later listed as NGC 5808)
Also observed (Aug 21, 1884) by Guillaume Bigourdan (while listed as NGC 5808)
Discovered (Oct 6, 1861) by Heinrich d'Arrest (and later listed as NGC 5819)
A magnitude 13.5 spiral galaxy (type SBbc?) in Ursa Minor (RA 14 54 02.8, Dec +73 07 54)

Historical Identification: Per Dreyer, NGC 5808 (= GC 4022 = WH III 311, 1860 RA 14 53 01, NPD 16 24.6) is "very faint, small, irregularly round, between 2 stars". The second IC lists a corrected RA (per Bigourdan) of RA 14 53 48.
Physical Information: Apparent size 0.9 by 0.9 arcmin.

NGC 5809 (= PGC 53624)
Discovered (Jun 5, 1836) by John Herschel
A magnitude 13.4 lenticular galaxy (type S0/a?) in Libra (RA 15 00 52.3, Dec -14 09 55)

Historical Identification: Per Dreyer, NGC 5809 (= GC 4023 = JH 3586, 1860 RA 14 53 11, NPD 103 36.8) is "very faint, small, extended, gradually a little brighter middle".
Physical Information: Apparent size 1.4 by 0.7 arcmin

NGC 5810 (= PGC 53711)
Discovered (1886) by Ormond Stone
Also observed (Jul 1899 to Jun 1900) by Herbert Howe
A magnitude 13.3 spiral galaxy (type SBb?) in Libra (RA 15 02 42.7, Dec -17 52 04)

Historical Identification: Per Dreyer, NGC 5810 (Ormond Stone list I (#218), 1860 RA 14 53 20, NPD 107 17.7) is "extremely faint, very small, a little extended 230�, between 2 very faint stars". The second IC lists a corrected RA (per Howe) of RA 14 54 50.
Physical Information: Apparent size 1.2 by 0.8 arcmin.

NGC 5811 (= PGC 53597)
Discovered (Apr 12, 1864) by Albert Marth
A magnitude 14.1 spiral galaxy (type SBm?) in Virgo (RA 15 00 27.2, Dec +01 37 24)

Historical Identification: Per Dreyer, NGC 5811 (= GC 5776, Marth #285, 1860 RA 14 53 22, NPD 87 48) is "very faint, small, irregularly round".
Physical Information: Apparent size 1.0 by 0.7 arcmin

NGC 5812 (= PGC 53630)
Discovered (Mar 5, 1785) by William Herschel
Also observed (Jul 16, 1835) by John Herschel
A magnitude 11.2 elliptical galaxy (type E1?) in Libra (RA 15 00 55.7, Dec -07 27 27)

Historical Identification: Per Dreyer, NGC 5812 (= GC 4024 = JH 3587 = WH I 71, 1860 RA 14 53 29, NPD 96 54.0) is "considerably bright, small, round, suddenly very much brighter middle".
Physical Information: Apparent size 2.3 by 2.0 arcmin

NGC 5813 (= PGC 53643)
Discovered (Feb 24, 1786) by William Herschel
Also observed (Apr 13, 1828) by John Herschel
A magnitude 10.5 elliptical galaxy (type E1?) in Virgo (RA 15 01 11.2, Dec +01 42 07)

Historical Identification: Per Dreyer, NGC 5813 (= GC 4026 = JH 1896 = WH I 127, 1860 RA 14 54 06, NPD 87 44.5) is "bright, pretty small, round, pretty suddenly much brighter middle".
Physical Information: Apparent size 4.2 by 3.0 arcmin. Used by the de Vaucouleurs Atlas of Galaxy Types as an example of galaxy type E1-2.

Above, a 5 arcmin wide closeup of NGC 5813
Below, a 12 arcmin wide region centered on the galaxy

NGC 5814 (= PGC 53653)
Discovered (Apr 13, 1828) by John Herschel
A magnitude 13.8 spiral galaxy (type Sab?) in Virgo (RA 15 01 21.2, Dec +01 38 14)

Historical Identification: Per Dreyer, NGC 5814 (= GC 4027 = JH 1897, 1860 RA 14 54 15, NPD 87 48.7) is "very faint, very small, round".
Physical Information: Apparent size 0.9 by 0.5 arcmin

NGC 5815 (= PGC 53600)
Discovered (Feb 15, 1886) by Francis Leavenworth
Also observed (Jul 1899 to Jun 1900) by Herbert Howe
A magnitude 14.3 spiral galaxy (type Sb?) in Libra (RA 15 00 29.3, Dec -16 50 03)

Historical Identification: Per Dreyer, NGC 5815 (Leavenworth list I (#219), 1860 RA 14 54 20, NPD 106 15.7) is "extremely faint, pretty small, extended 10�, double star involved". The second IC lists a corrected RA (per Howe) of RA 14 52 40 and adds "Double star not seen, but night not very good".
Physical Information: Apparent size 0.8 by 0.4 arcmin.

NGC 5816 (= PGC 902544)
Discovered (1886) by Ormond Stone
A magnitude 14.8 lenticular galaxy (type S0?) in Libra (RA 15 00 04.9, Dec -16 05 37)

Historical Identification: Per Dreyer, NGC 5816 (Ormond Stone list I (#220), 1860 RA 14 54 20, NPD 105 34.7) is "faint, pretty small, gradually brighter middle and nucleus, stellar".
Physical Information: Apparent size 0.5 by 0.3 arcmin

NGC 5817 (= PGC 53567)
Discovered (1886) by Ormond Stone
Also observed (Jul 1899 to Jun 1900) by Herbert Howe
A magnitude 14.2 lenticular galaxy (type S0?) in Libra (RA 14 59 40.8, Dec -16 10 49)

Historical Identification: Per Dreyer, NGC 5817 (Ormond Stone list I (#221), 1860 RA 14 54 20, NPD 105 38.7) is "very faint, pretty small". The second IC lists a corrected RA (per Howe) of RA 14 51 54.
Physical Information: Apparent size 0.9 by 0.7 arcmin.

NGC 5818 (= PGC 53530)
Discovered (Apr 23, 1887) by Lewis Swift
A magnitude 13.7 lenticular galaxy (type S0?) in Bo�tes (RA 14 58 58.4, Dec +49 49 17)

Historical Identification: Per Dreyer, NGC 5818 (Swift list VI (#73), 1860 RA 14 54 21, NPD 39 35.5) is "very faint, pretty small, round, extremely faint star involved, between 2 stars".
Physical Information: Apparent size 1.2 by 0.9 arcmin

NGC 5819 (= NGC 5808 = PGC 53251)
Discovered (Mar 16, 1785) by William Herschel (and later listed as NGC 5808)
Discovered (Oct 6, 1861) by Heinrich d'Arrest (and later listed as NGC 5819)
A magnitude 13.5 spiral galaxy (type SBbc?) in Ursa Minor (RA 14 54 02.8, Dec +73 07 54)

Historical Identification: Per Dreyer, NGC 5819 (= WH III 311?, d'Arrest, 1860 RA 14 54 28, NPD 16 18.8) is "faint, pretty large, in a triangle with 2 stars", 'WH III 311?' showing that Dreyer thought this might be the same as NGC 5808 (which it indeed turned out to be).
Physical Information: Given the duplicate entry, see NGC 5808 for anything else.

NGC 5820 (= PGC 53511)
Discovered (May 5, 1788) by William Herschel
Also observed (May 4, 1831) by John Herschel
A magnitude 12.5 lenticular galaxy (type S0?) in Bo�tes (RA 14 58 39.8, Dec +53 53 10)

Historical Identification: Per Dreyer, NGC 5820 (= GC 4029 = GC 4025 = JH 1898 = WH II 756, 1860 RA 14 54 31, NPD 35 33.3) is "bright, extended 90��, suddenly brighter middle, bright double star 8 arcmin to east".
Physical Information: Apparent size 1.7 by 1.1 arcmin

NGC 5821 (= PGC 53532)
Discovered (Apr 24, 1789) by William Herschel
Also observed (Apr 6, 1851) by Bindon Stoney
A magnitude 13.6 spiral galaxy (type S?) in Bo�tes (RA 14 58 59.7, Dec +53 55 24)

Historical Identification: Per Dreyer, NGC 5821 (= GC 4030 = GC 4028 = WH III 811, 3rd Lord Rosse, 1860 RA 14 54 51, NPD 35 30) is "very faint, small".
Discovery Notes: Although Dreyer credits the discovery to William Parsons, 3rd Earl of Rosse, he notes that many of Rosse's nebular discoveries were actually made by one of his assistants, in this case Bindon Stoney.
Physical Information: Apparent size 1.4 by 0.8 arcmin

NGC 5822 (= OCL 937)
Discovered (Jun 5, 1826) by James Dunlop (but misattributed to NGC 5593)
Discovered (Jul 3, 1836) by John Herschel
A magnitude 6.5 open cluster (type II1r) in Lupus (RA 15 04 02, Dec -54 20 21)
Center apparently uncertain; Corwin lists RA 15 04 20, Dec -54 23 48

Historical Identification: Per Dreyer, NGC 5822 (= GC 4031 = JH 3588, 1860 RA 14 55 02, NPD 143 47.4) is a "cluster, very large, rich, a little compressed, stars from 9th to 12th magnitude".
About Dunlop's Observation: For now, see NGC 5593 for a discussion of the error in the NGC, discovered by Cozens (though not correctly interpreted by him) and finally corrected by Gottlieb.
Physical Information: Apparent size 35 arcmin

NGC 5823 (= OCL 936 = C88 = ESO 176-SC011 = "PGC 3518326")
Discovered (May 8, 1826) by James Dunlop
Also observed (Apr 16, 1836) by John Herschel
A magnitude 7.9 open cluster (type III2m) in Circinus (RA 15 05 28.0, Dec -55 35 18)

Historical Identification: Per Dreyer, NGC 5823 (= GC 4032 = JH 3589, (Dunlop #351), 1860 RA 14 55 20, NPD 145 02.3) is a "cluster, considerably large, rich, a little compressed middle, stars from 13th to 14th magnitude." The position precesses to RA 15 05 41.9, Dec -55 35 18, slightly to the east of the modern position of the cluster listed above but well within its boundary, the description fits and although the dense stellar background makes the cluster less obvious, there is nothing else nearby that matches the original observations, so the identification is certain.
Discovery Notes: Dunlop's prior observation of the cluster was not recognized at the time Dreyer published the NGC, hence its inclusion above in parentheses.
PGC Designation Note: As usual for NGC objects, HyperLEDA assigned a PGC designation to this object, even though it isn't a galaxy; but as also usual in such situations, a search of the database for that designation returns no result, hence its being placed in quotes.
Physical Information: Apparent size 12 arcmin?

Above, a 20 arcmin wide DSS image centered on the modern position for NGC 5823

NGC 5824 (= NGC 5834 = GCL 31)
Discovered (May 14, 1826) by James Dunlop (and later listed as NGC 5834)
Discovered (May 9, 1831) by John Herschel (and later listed as NGC 5834)
Also observed (1863 - 1865?) by Albert Marth (while listed as NGC 5834)
Discovered (1882) by Edward Barnard (and later listed as NGC 5824)
A magnitude 9.1 globular cluster (type I) in Lupus (RA 15 03 58.6, Dec -33 04 07)

Historical Identification: Per Dreyer, NGC 5824 (Barnard, 1860 RA 14 55 23, NPD 122 30.9) is "pretty bright, small, stellar, nuclear". Dreyer listed this object as being discovered by Barnard, and NGC 5834 as being discovered by John Herschel (many of Dunlop's observations being so poorly reduced that Herschel often received credit for their discovery even when Dunlop's observations were reasonably accurate). The first IC states for NGC 5824, "5824 is = h. 1900 (per Barnard, A.N. 2995). It also occurs in the Cordoba D.M.". Since h.1900 is NGC 5834, the identity of the two entries has been known for more than a century. Normally Dunlop and Herschel's prior discovery would lead to this object being known as NGC 5834; but in the first IC notes for that object (which see), Dreyer recommends striking out NGC 5834, presumably due to the fact that Barnard, who had been given credit for discovering NGC 5824, was also the one who noted its identity with NGC 5834.
Discovery Notes: Barnard's first observation of this cluster was in 1882, and by 1886 he had several micrometric observations, published in AN 2756 (Steinicke's S52), with a stated observation date of Jun 29/30, 1886, and identified as a reobservation of GC 4036. However, the position was so different from Herschel's poor position that Dreyer rejected Barnard's assertion that he had reobserved GC 4036, and assigned Barnard's observation to NGC 5824, and Herschel's to NGC 5834. In 1890, Barnard published another paper in AN 2995, with additional measurements essentially identical to those of the 1886 paper, and the statement that Herschel's description and position could not be correct; that finally led to the IC1 correction shown above, and an occasional unfortunate statement that Barnard discovered the object in 1890 (which would have made its inclusion in the (1887) NGC an impossibility).
Physical Information: Apparent size 7.4 arcmin.

NGC 5825
Recorded (Jun 20, 1886) by Lewis Swift
A lost or nonexistent object in Bo�tes (RA 15 02 00.0, Dec +18 42 30)
Corwin lists a possible candidate at RA 14 54 31.5, Dec +18 38 32

Historical Identification: Per Dreyer, NGC 5825 (Swift list IV (#16), 1860 RA 14 55 36, NPD 70 45.2) is "most extremely faint, pretty small, a little extended, pretty bright star close to east".

NGC 5826 (= NGC 5870 = PGC 53949)
Discovered (Jun 9, 1885) by Lewis Swift (and later listed as NGC 5826)
Discovered (Jun 11, 1885) by Lewis Swift (and later listed as NGC 5870)
A magnitude 14.4 lenticular galaxy (type S0?) in Draco (RA 15 06 33.9, Dec +55 28 45)

Historical Identification: Per Dreyer, NGC 5826 (Swift list I (#39), 1860 RA 14 55 48, NPD 33 56.7) is "very faint, pretty large, extended".
Physical Information: Apparent size 1.2 by 0.9 arcmin

Above, a 2.4 arcmin wide closeup of NGC 5826
Below, a 12 arcmin wide region centered on the galaxy; the nearby star is 12th magnitude

NGC 5827 (= PGC 53676)
Discovered (Jun 8, 1880) by �douard Stephan
A magnitude 13.0 spiral galaxy (type Sab? pec) in Bo�tes (RA 15 01 53.7, Dec +25 57 52)

Historical Identification: Per Dreyer, NGC 5827 (Stephan list XI (#10), 1860 RA 14 55 49, NPD 63 28.9) is "pretty bright, pretty large, round, brighter middle".
Physical Information: Apparent size 1.1 by 0.8 arcmin

NGC 5828 (= PGC 53618 = UGC 9658 = CGCG 248-043 = MCG +08-27-051 = "NGC 5828B")
Discovered (Jun 24, 1887) by Lewis Swift
A magnitude 13.6 spiral galaxy (type SABc?) in Bo�tes (RA 15 00 46.1, Dec +49 59 37)

Historical Identification: Per Dreyer, NGC 5828 (Swift list VI (list IX #43), 1860 RA 14 56 12, NPD 39 26.2) is "extremely faint, pretty small, round, between 2 distant stars." The position precesses to RA 15 00 44.1, Dec +50 00 31, less than an arcmin north-northwest of the galaxy, the description fits and there is nothing else nearby, so the identification is certain.
Discovery Notes: Swift apparently sent Dreyer his list VI prior to publication, but in this case (and a few others) inadvertently left the object out of the actual publication; but he corrected the omission in his list IX, hence the note in parentheses.
Warning About Non-Standard Designation: Since the use of letters with NGC/IC designations has no rules (and should be banned for reasons too numerous to list), the galaxy near NGC 5828 (PGC 53619) is sometimes called NGC 5828A, and NGC 5828 itself is sometimes called NGC 5828B. This is not only ridiculous but misleading, as there is absolutely no connection between the two, except that they are in the same part of the sky; and Swift could not possibly have seen the fainter galaxy, so it has nothing to do with the entry for NGC 5828. This paragraph therefore serves only as one of numerous warnings about the mis-use of letter designations for NGC/IC objects.
Physical Information: Based on a recessional velocity relative to the Cosmic Microwave Background radiation of 4155 km/sec (and H0 = 70 km/sec/Mpc), NGC 5828 is about 190 to 195 million light-years away. Given that and its apparent size of about 0.75 by 0.55 arcmin (from the images below), the galaxy is about 40 to 45 thousand light-years across.

Above, a 12 arcmin wide SDSS image of NGC 5828, also showing PGC 53619
Below, a 0.8 arcmin wide SDSS image of NGC 5828

PGC 53619 (= MCG +08-27-052 = "NGC 5828A")
Not an NGC object but listed here because sometimes called NGC 5828A
A magnitude 16.1 spiral galaxy (type SBbc?) in Bo�tes (RA 15 00 45.4, Dec +49 58 57)

Warning About Non-Standard Designation: See the entry for NGC 5828 for a warning about the mis-use of letters for NGC/IC objects, and the resulting problems involving it and this galaxy.
Physical Information: Based on a recessional velocity relative to the Cosmic Background Radiation of 14940 km/sec (and H0 = 70 km/sec/Mpc), a straightforward calculation indicates that PGC 53619 is about 695 million light-years away. However, for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 655 to 660 million light-years away at the time the light by which we see it was emitted, about 670 to 675 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of about 0.4 by 0.25 arcmin (from the images below), the galaxy is about 75 thousand light-years across, meaning that although its distance makes it look small, it is actually much larger than its apparently larger "neighbor".
Notes About Modern Database 'Errors': NED lists both NGC 5828 and PGC 53619 as part of CGCG 248-043, but HyperLEDA only lists NGC 5828 as CGCG 248-043, and the two galaxies are far enough apart that the NED inclusion of PGC 53619 in the CGCG designation is probably wrong. In any event, since PGC 53619 is a much more distant background galaxy, there is no connection between the two galaxies, other than happening to be in the same part of the sky. Also, both catalogs list the same (B) magnitude for PGC 53619 as for NGC 5828, which is obviously wrong, since PGC 53619 looks considerably smaller and fainter. The magnitude shown above is taken from Wolfgang Steinicke's database, and is far more likely to be correct than the NED/LEDA value.

Above, a 12 arcmin wide SDSS image of NGC 5828, also showing PGC 53619
Below, a 0.5 arcmin wide SDSS image of PGC 53619

NGC 5829 (= PGC 53709 = HCG 73A, and with IC 4526 = Arp 42)
Discovered (May 11, 1882) by �douard Stephan
A magnitude 13.4 spiral galaxy (type SA(s)c?) in Bo�tes (RA 15 02 42.0, Dec +23 20 01)

Historical Identification: Per Dreyer, NGC 5829 (Stephan list XII (#68), 1860 RA 14 56 31, NPD 66 06.8) is "very faint, very large, irregularly round, brighter middle".
Physical Information: Based on a recessional velocity of 5635 km/sec, NGC 5829 is about 260 million light years away, in unusually poor agreement with redshift-independent distance estimates of 145 to 175 million light years. Using an intermediate distance of 200 million light years, the galaxy's apparent size of 1.45 by 1.0 arcmin would correspond to 110 thousand light years. NGC 5829 and IC 4526 make up Arp 42, an example of a spiral galaxy with a faint companion; but the two are not physical companions, as IC 4526 is over 300 million light years further away. The galaxy is also listed as a member of Hickson Compact Group 73, but is not actually a physical member of the group, being much closer than all the other members.

Above, a 2.4 arcmin wide closeup of Arp 42
Below, a 12 arcmin wide region centered on NGC 5829, also showing other members of HCG 73
Several hundred distant galaxies are scattered across the wide-field image

NGC 5830 (= PGC 53674)
Discovered (Apr 23, 1887) by Lewis Swift
A magnitude 14.2 spiral galaxy (type Sb?) in Bo�tes (RA 15 01 50.9, Dec +47 52 32)

Historical Identification: Per Dreyer, NGC 5830 (Swift list VI (#74), 1860 RA 14 57 00, NPD 41 32.0) is "very faint, small, round, bright star near to east".
Physical Information: Apparent size 1.0 by 0.7 arcmin

NGC 5831 (= PGC 53770)
Discovered (Feb 24, 1786) by William Herschel
Also observed (Apr 13, 1828) by John Herschel
A magnitude 11.5 elliptical galaxy (type E3?) in Virgo (RA 15 04 07.0, Dec +01 13 12)

Historical Identification: Per Dreyer, NGC 5831 (= GC 4033 = JH 1899 = WH II 540, 1860 RA 14 57 02, NPD 88 14.7) is "pretty bright, small, much brighter middle".
Physical Information: Apparent size 2.1 by 1.9 arcmin

NGC 5832 (= PGC 53469)
Discovered (Mar 16, 1785) by William Herschel
A magnitude 12.1 spiral galaxy (type SBb?) in Ursa Minor (RA 14 57 45.6, Dec +71 40 54)

Historical Identification: Per Dreyer, NGC 5832 (= GC 4034 = WH II 332, 1860 RA 14 57 32, NPD 17 45.3) is "pretty bright, considerably large, irregularly round, brighter on west side, mottled but not resolved".
Physical Information: Apparent size 3.6 by 2.2 arcmin

NGC 5833 (= PGC 54250)
Discovered (Apr 4, 1835) by John Herschel
A magnitude 12.0 spiral galaxy (type Sbc?) in Apus (RA 15 11 53.7, Dec -72 51 34)

Historical Identification: Per Dreyer, NGC 5833 (= GC 4035 = JH 3590, 1860 RA 14 57 33, NPD 162 19.1) is "faint, considerably small, a little extended, gradually a little brighter middle, among stars".
Physical Information: Apparent size 2.1 by 1.0 arcmin

NGC 5834 (= NGC 5824 = GCL 31)
Discovered (May 14, 1826) by James Dunlop (and later listed as NGC 5834)
Discovered (May 9, 1831) by John Herschel (and later listed as NGC 5834)
Also observed (1863 - 1865?) by Albert Marth (and later listed as NGC 5834)
Also observed (1882) by Edward Barnard (while listed as GC 4036)
A magnitude 9.1 globular cluster (type I) in Lupus (RA 15 03 58.6, Dec -33 04 07)

Historical Identification: Per Dreyer, NGC 5834 (= GC 4036 = JH 1900, (Dunlop 611), 1860 RA 14 57 47, NPD 122 34.6) is "most extremely faint? (Marth: bright, stellar)". Dreyer listed this object as being discovered by Herschel, and NGC 5824 as being discovered by Barnard. The identity of the two objects was noted in the first IC, which states for NGC 5824, "5824 is = h. 1900 (per Barnard, A.N. 2995). It also occurs in the Cordoba D.M.". Since h.1900 is NGC 5834, the identity of the two entries has been known for more than a century. Normally Dunlop and Herschel's prior discovery would lead to this object being known as NGC 5834; but in the first IC notes for NGC 5834 Dreyer says "5834 to be struck out, is = 5824", presumably due to the fact that Barnard, who had been given credit for discovering NGC 5824, was also the one who noted its identity with NGC 5834.
Discovery Notes: Dunlop's prior observation was not recognized at the time that Dreyer published the NGC, hence its inclusion in parentheses. Also see Discovery Notes for NGC 5824 for a discussion of the double listing. The source of Marth's comment appears to be unknown, but was almost certainly associated with his observations done at Malta, in which "novae" discovered prior to Lassell's receipt of Herschel's GC were deleted from Lassell's paper listing Marth's discoveries.
Physical Information: Given the duplicate entry, see NGC 5824 for anything else.

NGC 5835 (= PGC 53699)
Discovered (Apr 23, 1887) by Lewis Swift
A magnitude 14.4 spiral galaxy (type Sa?) in Bo�tes (RA 15 02 25.4, Dec +48 52 40)

Historical Identification: Per Dreyer, NGC 5835 (Swift list VI (#75), 1860 RA 14 57 50, NPD 40 32.4) is "very faint, pretty small, round".
Physical Information: Apparent size 1.1 by 0.9 arcmin

NGC 5836 (= PGC 53554)
Discovered (Mar 16, 1785) by William Herschel
Also observed (Aug 18, 1884) by Guillaume Bigourdan
A magnitude 13.9 spiral galaxy (type SBb?) in Ursa Minor (RA 14 59 31.0, Dec +73 53 35)

Historical Identification: Per Dreyer, NGC 5836 (= GC 4037 = WH III 312, 1860 RA 14 57 55, NPD 15 36.3) is "extremely faint, very small, a little extended, 2 stars involved". The second IC lists a corrected RA (per Bigourdan) of RA 15 00 05.
Physical Information: Apparent size 1.2 by 1.0 arcmin.

NGC 5837 (= PGC 53817)
Discovered (Jun 19, 1887) by Lewis Swift
A magnitude 14.0 spiral galaxy (type SBbc?) in Bo�tes (RA 15 04 40.6, Dec +12 38 00)

Historical Identification: Per Dreyer, NGC 5837 (Swift list VI (list IX #44), 1860 RA 14 57 55, NPD 76 49.1) is "very faint, small, round, double star to northwest".
Discovery Notes: Swift apparently sent Dreyer his list VI prior to publication, but in this case (and a few others) inadvertently left the object out of the actual publication; but he corrected the omission in his list IX, hence the note in parentheses.
Physical Information: Apparent size 1.0 by 0.6 arcmin

Corwin lists a possible companion (PGC 214356) at RA 15 04 44.1, Dec +12 39 03

NGC 5838 (= PGC 53862)
Discovered (Feb 24, 1786) by William Herschel
A magnitude 10.9 lenticular galaxy (type E/S0?) in Virgo (RA 15 05 26.2, Dec +02 05 58)

Historical Identification: Per Dreyer, NGC 5838 (= GC 4038 = WH II 542, 1860 RA 14 58 22, NPD 87 21.2) is "pretty bright, pretty small".
Physical Information: Apparent size 4.2 by 1.5 arcmin

NGC 5839 (= PGC 53865)
Discovered (Feb 24, 1786) by William Herschel
A magnitude 12.7 lenticular galaxy (type S0?) in Virgo (RA 15 05 27.5, Dec +01 38 05)

Historical Identification: Per Dreyer, NGC 5839 (= GC 4039 = WH II 541, 1860 RA 14 58 22, NPD 87 49.2) is "pretty faint, pretty small".
Physical Information: Apparent size 1.3 by 1.2 arcmin

NGC 5840
Recorded (Jul 22, 1886) by Lewis Swift
A lost or nonexistent object in Bo�tes (RA 15 04 20.5, Dec +29 30 22)

Historical Identification: Per Dreyer, NGC 5840 (Swift list IV (#17), 1860 RA 14 58 27, NPD 59 56.7) is "most extremely faint, pretty small, a little extended, very difficult".

NGC 5841 (= NGC 5848 = PGC 53941)
Discovered (May 6, 1862) by Heinrich d'Arrest (and later listed as NGC 5848)
Discovered (Apr 12, 1864) by Albert Marth (and later listed as NGC 5841)
A magnitude 13.8 lenticular galaxy (type S0/a?) in Virgo (RA 15 06 35.0, Dec +02 00 17)

Historical Identification: Per Dreyer, NGC 5841 (= GC 5777, Marth #286, 1860 RA 14 58 31, NPD 87 28) is "faint, small, extended".
Physical Information: Given the duplicate entry, see NGC 5848 for anything else.

NGC 5842 (= PGC 53831)
Discovered (May 11, 1882) by �douard Stephan
A magnitude 14.3 spiral galaxy (type Sb?) in Bo�tes (RA 15 04 52.0, Dec +21 04 10)

Historical Identification: Per Dreyer, NGC 5842 (Stephan list XII (#69), 1860 RA 14 58 34, NPD 68 22.9) is "extremely faint, very small, round, a little brighter middle".
Physical Information: Apparent size 0.4 by 0.4 arcmin

NGC 5843 (= PGC 53996)
Discovered (May 3, 1834) by John Herschel
A magnitude 12.2 spiral galaxy (type SBb?) in Lupus (RA 15 07 27.9, Dec -36 19 39)

Historical Identification: Per Dreyer, NGC 5843 (= GC 4040 = JH 3592, 1860 RA 14 58 42, NPD 125 47.1) is "very faint, small, a little extended, a very little brighter middle, mottled but not resolved".
Physical Information: Apparent size 1.9 by 1.1 arcmin

NGC 5844
Discovered (May 2, 1835) by John Herschel
Also observed (Jul 12, 1901) by DeLisle Stewart
A magnitude 12(?) planetary nebula in Triangulum Australe (RA 15 10 41.0, Dec -64 40 24)

Historical Identification: Per Dreyer, NGC 5844 (= GC 4041 = JH 3591, 1860 RA 14 58 51, NPD 154 08.2) is "pretty bright, pretty large, round, very gradually a very little brighter middle". The second IC adds "Three very faint nebulae only (DeLisle Stewart). h. has 2 observations, pretty bright, pretty large, round, very gradually a little brighter middle" ('h' meaning John Herschel).
Physical Information: Apparent size 1.22 arcmin.

NGC 5845 (= PGC 53901)
Discovered (Feb 24, 1786) by William Herschel
A magnitude 12.5 elliptical galaxy (type E3?) in Virgo (RA 15 06 00.8, Dec +01 38 02)

Historical Identification: Per Dreyer, NGC 5845 (= GC 4042 = WH III 511, 1860 RA 14 58 55, NPD 87 49.3) is "very faint, round".
Physical Information: Apparent size 0.7 by 0.5 arcmin

NGC 5846 (= PGC 53932)
Discovered (Feb 24, 1786) by William Herschel
Also observed (Apr 13, 1828) by John Herschel
A magnitude 10.0 elliptical galaxy (type E1?) in Virgo (RA 15 06 29.3, Dec +01 36 20)

Historical Identification: Per Dreyer, NGC 5846 (= GC 4045 = JH 1901 = WH I 128, 1860 RA 14 59 24, NPD 87 51.1) is "very bright, pretty large, round, pretty suddenly brighter middle and nucleus, faint star involved to south, partially resolved (some stars seen)".
Physical Information: Apparent size 4.0 by 3.7 arcmin. Recessional velocity 1715 km/sec.

Above, a 4 arcmin wide closeup of NGC 5846 and its apparent companion, PGC 53930

PGC 53930 (= "NGC 5846A")
Not an NGC object but listed here since sometimes called NGC 5846A
A magnitude 12.8 lenticular galaxy (type E/S0?) in Virgo (RA 15 06 29.2, Dec +01 35 42)

Physical Information: Apparent size 0.5 by 0.3 arcmin. The small galaxy just below the nucleus of NGC 5846, which see for images. Recessional velocity 2200 km/sec, close enough to that of NGC 5846 that they are probably members of the same group of galaxies, though whether they are as close as they appear or physically interacting is not obvious. In fact, the lack of any obvious distortion suggests that the smaller galaxy probably lies in front of or behind the larger one, rather than within its direct sphere of influence (as opposed to NGC 5850, which despite being further away (in the sky) is obviously distorted by the gravitational influence of NGC 5846).

NGC 5847 (= PGC 53928)
Discovered (Mar 25, 1865) by Albert Marth
A magnitude 14.9 spiral galaxy (type Sbc?) in Virgo (RA 15 06 22.3, Dec +06 22 48)

Historical Identification: Per Dreyer, NGC 5847 (= GC 5778, Marth #287, 1860 RA 14 59 28, NPD 83 05) is "extremely faint, small, irregularly round".
Physical Information: Apparent size 0.7 by 0.4 arcmin

NGC 5848 (= NGC 5841 = PGC 53941)
Discovered (May 6, 1862) by Heinrich d'Arrest (and later listed as NGC 5848)
Discovered (Apr 12, 1864) by Albert Marth (and later listed as NGC 5841)
A magnitude 13.8 lenticular galaxy (type S0/a?) in Virgo (RA 15 06 35.0, Dec +02 00 17)

Historical Identification: Per Dreyer, NGC 5848 (= GC 4046, d'Arrest, 1860 RA 14 59 29, NPD 87 26.7) is "extremely faint, small, close double star 7 arcmin to southeast".
Physical Information: Apparent size 1.1 by 0.4 arcmin

Above, a 2.4 arcmin wide closeup of NGC 5848
Below, a 12 arcmin wide region centered on the galaxy

NGC 5849 (= PGC 53962)
Discovered (Jun 6, 1886) by Francis Leavenworth
A magnitude 13.9 lenticular galaxy (type S0?) in Libra (RA 15 06 50.7, Dec -14 34 18)

Historical Identification: Per Dreyer, NGC 5849 (Leavenworth list I (#222), 1860 RA 14 59 30, NPD 103 53.1) is a "13th magnitude star in a very faint nebula, 3 stars 1 second of time to west, 8th magnitude star 10 seconds of time to east and 15 arcmin to south".
Physical Information: Based on a recessional velocity of 7185 km/sec, NGC 5849 is about 335 million light years away. Given that and its 0.9 by 0.8 arcmin apparent size, it is about 85 thousand light years across.

Above, a 2.4 arcmin wide closeup of NGC 5849
Below, a 12 arcmin wide region centered on the galaxy

Corwin lists a possible companion (PGC 922856) at RA 15 06 48.8, Dec -14 34 30
(note: PGC 922856's apparent extension to the east is merely a star)