| dbo:abstract |
HD 58425, also known as HR 2830, is an astrometric binary (100% chance) located in the northern circumpolar constellation Camelopardalis. It is faintly visible to the naked eye as an orang point of light at an apparent magnitude of 5.64. Based on parallax measurements from Gaia DR3, the system is estimated to be 470 light years away from Earth. It appears to be rapidly receding from the Sun, having a heliocentric radial velocity of 58.6 km/s. HD 58425 is listed as 54 Ursae Majoris in Johann Hevelius' catalogue, but this was dropped after the official IAU's official constellation borders were drawn. The visible component is an evolved, RGB star with a stellar classification of K2 III. It has 1.74 times the mass of the Sun and is said to be 3.55 billion years old. At this age, the object has expanded to 24.7 times the radius of the Sun and now radiates nearly 200 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,479 K. HD 58425 A has an iron abundance only 38% that of the Sun's, making it metal deficient. (en) HD 58425，又名BD+68 480，SAO 14211、HR 2830，是一颗恒星，视星等为5.64，位于銀經147.28，銀緯28.69，其B1900.0坐标为赤經7h 20m 28.6s，赤緯+68° 28.69′ 12″。 (zh) |
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dbr:Camelopardalis dbr:Ursa_Major dbr:Stellar_classification dbr:Gaia_DR3 dbc:Astrometric_binaries dbc:Bright_Star_Catalogue_objects dbc:Camelopardalis_(constellation) dbc:Durchmusterung_objects dbc:Henry_Draper_Catalogue_objects dbc:Hipparcos_objects dbc:K-type_giants dbr:Constellation dbr:Naked_eye dbr:Photosphere dbr:Effective_temperature dbr:Red_giant_branch dbr:Apparent_magnitude dbr:Light_year dbr:Henry_Draper_Catalogue dbr:Parallax dbr:Earth dbr:Astrometric_binary dbr:International_Astronomical_Union dbr:International_Celestial_Reference_System dbr:Iron dbr:J2000.0 dbr:Billion_years dbr:Sun dbr:Circumpolar_constellation dbr:Radial_velocity dbr:Johann_Hevelius dbr:Mass_of_the_Sun dbr:John_Hevelius dbr:Radius_of_the_Sun dbr:Luminosity_of_the_Sun |
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−0.05 (en) |
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3.550000 (xsd:double) |
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| dbp:bV |
+1.11 (en) |
| dbp:class |
K2 III (en) |
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dbr:Camelopardalis |
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J2000.0 (en) |
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2.400000 (xsd:double) |
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199 (xsd:integer) |
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| dbp:metalFe |
−0.42 (en) |
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0.264400 (xsd:double) |
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6.985800 (xsd:double) |
| dbp:propMoDec |
−42.687 (en) |
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dbr:Red_giant_branch |
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| dct:subject |
dbc:Astrometric_binaries dbc:Bright_Star_Catalogue_objects dbc:Camelopardalis_(constellation) dbc:Durchmusterung_objects dbc:Henry_Draper_Catalogue_objects dbc:Hipparcos_objects dbc:K-type_giants |
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owl:Thing dbo:Place dbo:Location schema:Place dbo:CelestialBody dbo:Star |
| rdfs:comment |
HD 58425，又名BD+68 480，SAO 14211、HR 2830，是一颗恒星，视星等为5.64，位于銀經147.28，銀緯28.69，其B1900.0坐标为赤經7h 20m 28.6s，赤緯+68° 28.69′ 12″。 (zh) HD 58425, also known as HR 2830, is an astrometric binary (100% chance) located in the northern circumpolar constellation Camelopardalis. It is faintly visible to the naked eye as an orang point of light at an apparent magnitude of 5.64. Based on parallax measurements from Gaia DR3, the system is estimated to be 470 light years away from Earth. It appears to be rapidly receding from the Sun, having a heliocentric radial velocity of 58.6 km/s. HD 58425 is listed as 54 Ursae Majoris in Johann Hevelius' catalogue, but this was dropped after the official IAU's official constellation borders were drawn. (en) |
| rdfs:label |
HD 58425 (en) HD 58425 (zh) |
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wikidata:HD 58425 dbpedia-zh:HD 58425 https://global.dbpedia.org/id/AHSa |
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wikipedia-en:HD_58425?oldid=1121823026&ns=0 |
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HD58425 (en) |
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dbr:List_of_stars_in_Camelopardalis |
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