| dbo:abstract |
HD 178233 is a single star in the northern constellation of Lyra. It is bright enough to be dimly visible to the naked eye with an apparent visual magnitude of 5.53, making it a sixth magnitude star. The distance to HD 178233 is 134 light years based on parallax measurements, but it is drifting closer to the Sun with a radial velocity of approximately −24 km/s. The stellar classification of this star was determined to be F0III by A. Cowley and associates (1969), matching an evolved F-type giant star. In contrast, D. R. Palmer and associates (1968) listed it as an A-type main-sequence star with a class of A7V. It is about a half billion years old and is spinning rapidly with a projected rotational velocity of 165.0 km/s, which is giving the star an equatorial bulge that is ~24% wider than the polar radius. The star has 1.5 times the mass and 1.8 times the mean radius of the Sun. It is radiating over eight times the luminosity of the Sun from its photosphere at an effective temperature of 7,220 K. (en) HD 178233 är en ensam stjärna belägen i den södra delen av stjärnbilden Lyran. Den har en skenbar magnitud av ca 5,53 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 24,5 mas, beräknas den befinna sig på ett avstånd på ca 133 ljusår (ca 41 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -24 km/s. (sv) HD 178233，又名BD+28 3193，SAO 86819、HR 7253，是一颗恒星，视星等为5.55，位于銀經60.28，銀緯9.6，其B1900.0坐标为赤經19h 2m 39.6s，赤緯+28° 9.6′ 16″。 (zh) |
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dbr:F-type_star dbr:Stellar_classification dbc:A-type_main-sequence_stars dbc:Bright_Star_Catalogue_objects dbc:Durchmusterung_objects dbc:F-type_giants dbc:Henry_Draper_Catalogue_objects dbc:Hipparcos_objects dbc:Lyra_(constellation) dbr:Constellation dbr:Photosphere dbr:Effective_temperature dbr:Equatorial_bulge dbr:Light_year dbr:Star dbr:Stellar_evolution dbr:Stellar_parallax dbr:A-type_main-sequence_star dbr:Sun dbr:Apparent_visual_magnitude dbr:Radial_velocity dbr:Giant_star dbr:Lyra_(constellation) dbr:Projected_rotational_velocity |
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2.520000 (xsd:double) |
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498 (xsd:integer) |
| dbp:appmagV |
5.530000 (xsd:double) |
| dbp:class |
F0III or A7V (en) |
| dbp:constell |
dbr:Lyra_(constellation) |
| dbp:epoch |
J2000.0 (en) |
| dbp:mass |
1.540000 (xsd:double) |
| dbp:metalFe |
0.040000 (xsd:double) |
| dbp:pError |
0.086700 (xsd:double) |
| dbp:parallax |
24.397400 (xsd:double) |
| dbp:propMoDec |
85.291000 (xsd:double) |
| dbp:propMoRa |
75.662000 (xsd:double) |
| dbp:uB |
+0.04 (en) |
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dbt:Reflist dbt:Short_description dbt:Starbox_astrometry dbt:Starbox_begin dbt:Starbox_catalog dbt:Starbox_character dbt:Starbox_detail dbt:Starbox_end dbt:Starbox_observe dbt:Starbox_reference dbt:Val dbt:DEC dbt:Odlist dbt:RA dbt:Stars_of_Lyra |
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dbc:A-type_main-sequence_stars dbc:Bright_Star_Catalogue_objects dbc:Durchmusterung_objects dbc:F-type_giants dbc:Henry_Draper_Catalogue_objects dbc:Hipparcos_objects dbc:Lyra_(constellation) |
| gold:hypernym |
dbr:Star |
| rdf:type |
owl:Thing dbo:Place dbo:Location schema:Place dbo:CelestialBody yago:Animal100015388 yago:Giant101323781 yago:LivingThing100004258 yago:Object100002684 yago:Organism100004475 yago:PhysicalEntity100001930 yago:WikicatHRObjects yago:WikicatHenryDraperCatalogueObjects dbo:Star yago:Whole100003553 yago:WikicatF-typeGiants |
| rdfs:comment |
HD 178233 är en ensam stjärna belägen i den södra delen av stjärnbilden Lyran. Den har en skenbar magnitud av ca 5,53 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 24,5 mas, beräknas den befinna sig på ett avstånd på ca 133 ljusår (ca 41 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -24 km/s. (sv) HD 178233，又名BD+28 3193，SAO 86819、HR 7253，是一颗恒星，视星等为5.55，位于銀經60.28，銀緯9.6，其B1900.0坐标为赤經19h 2m 39.6s，赤緯+28° 9.6′ 16″。 (zh) HD 178233 is a single star in the northern constellation of Lyra. It is bright enough to be dimly visible to the naked eye with an apparent visual magnitude of 5.53, making it a sixth magnitude star. The distance to HD 178233 is 134 light years based on parallax measurements, but it is drifting closer to the Sun with a radial velocity of approximately −24 km/s. (en) |
| rdfs:label |
HD 178233 (en) HD 178233 (sv) HD 178233 (zh) |
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freebase:HD 178233 yago-res:HD 178233 wikidata:HD 178233 dbpedia-fa:HD 178233 dbpedia-sv:HD 178233 dbpedia-zh:HD 178233 https://global.dbpedia.org/id/4iQA4 |
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