HD 183143: Difference between revisions
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{{Starbox begin |
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{{refimprove|date=July 2017}} |
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| name = HD 183143 |
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}}<!-- |
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{{Starbox image |
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-->{{Starbox observe |
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| epoch = [[J2000.0]] |
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| equino = [[J2000.0]] |
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| constell = [[Sagitta (constellation)|Sagitta]] |
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| pronounce = |
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| ra = {{RA|19|27|26.3566}} |
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| dec = {{DEC|+18|17|45.19}} |
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| appmag_v = 6.86 |
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}} |
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{{Starbox character |
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| class = B6-8 Ia-0<ref name=chentsov>{{cite journal|last1=Chentsov|first1=E. L.|title=HD 183143: A Hypergiant|journal=Astronomy Letters|volume=30|year=2004|pages=325–331|doi=10.1134/1.1738155|bibcode=2004AstL...30..325C}}</ref> |
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| appmag_1_passband = B |
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| appmag_1 = 8.08 |
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| appmag_2_passband = J |
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| appmag_2 = 4.13 |
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| appmag_3_passband = K |
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| appmag_3 = 3.46 |
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}} |
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{{Starbox astrometry |
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| radial_v = |
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| prop_mo_ra = {{nowrap|0.19 ± 0.37}} |
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| prop_mo_dec = {{nowrap|-5.15 ± 0.39}} |
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| parallax = 0.66 |
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| p_error = 0.28 |
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| parallax_footnote = <ref name=dr1>{{cite journal|bibcode=2016yCat.1337....0G|title=VizieR Online Data Catalog: Gaia DR1 (Gaia Collaboration, 2016)|journal=VizieR On-line Data Catalog: I/337. Originally published in: Astron. Astrophys|volume=1337|author1=Gaia Collaboration|year=2016}}</ref> |
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| dist_ly = 6,500 |
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| dist_pc = 2,000 |
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| absmag_v = −8.00<ref name=chentsov/> |
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| luminosity = |
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{{Starbox catalog |
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| names = [[Variable star designation|HT]] Sge, [[Henry Draper catalog|HD]] 183143, [[Guide Star Catalogue|GSC]] 01604-00378, [[Tycho Catalogue|TYC]] 1604-378-1. |
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}} |
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{{Starbox reference |
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| Simbad = HD+183143 |
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}} |
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{{Starbox end}} |
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== Features == |
== Features == |
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This star has an [[apparent magnitude]] of 6.86, meaning that can be seen with the [[naked eye]] under [[Bortle Dark Sky scale|very dark skies]] and that is an easy target for [[binoculars]] or a [[small telescope]]. |
This star has an [[apparent magnitude]] of 6.86, meaning that can be seen with the [[naked eye]] under [[Bortle Dark Sky scale|very dark skies]] and that is an easy target for [[binoculars]] or a [[small telescope]]. |
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Despite being classified as a hypergiant star, this object has been relatively little studied. It was classified as a standard [[blue supergiant]] until 2004, when it was a revealed as a blue hypergiant instead of [[spectral type]] between B6 and B8 located at a distance of around 2 [[kilo]][[parsec]]s with an [[absolute magnitude]] of approximately -8, putting it among the (visually) most luminous stars of the [[Milky Way]]. |
Despite being classified as a hypergiant star, this object has been relatively little studied. It was classified as a standard [[blue supergiant]] until 2004, when it was a revealed as a blue hypergiant instead of [[spectral type]] between B6 and B8 located at a distance of around 2 [[kilo]][[parsec]]s with an [[absolute magnitude]] of approximately -8, putting it among the (visually) most luminous stars of the [[Milky Way]]<ref name=chentsov/>. |
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== References == |
== References == |
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{{reflist}} |
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*[http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+183143&submit=SIMBAD+search HD 183143 (SIMBAD Astronomical Database)] |
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*[http://adsabs.harvard.edu/abs/2004AstL...30..325C HD 183143: A Hypergiant] |
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{{Stars of Sagitta}} |
{{Stars of Sagitta}} |
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Revision as of 12:25, 23 July 2017
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Sagitta |
| Right ascension | 19h 27m 26.3566s |
| Declination | +18° 17′ 45.19″ |
| Apparent magnitude (V) | 6.86 |
| Characteristics | |
| Spectral type | B6-8 Ia-0[1] |
| Apparent magnitude (B) | 8.08 |
| Apparent magnitude (J) | 4.13 |
| Apparent magnitude (K) | 3.46 |
| Astrometry | |
| Proper motion (μ) | RA: 0.19 ± 0.37 mas/yr Dec.: -5.15 ± 0.39 mas/yr |
| Parallax (π) | 0.66 ± 0.28 mas[2] |
| Distance | 6,500 ly (2,000 pc) |
| Absolute magnitude (MV) | −8.00[1] |
| Details | |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 183143 is a blue hypergiant star located in the constellation of Sagitta.
Features
This star has an apparent magnitude of 6.86, meaning that can be seen with the naked eye under very dark skies and that is an easy target for binoculars or a small telescope.
Despite being classified as a hypergiant star, this object has been relatively little studied. It was classified as a standard blue supergiant until 2004, when it was a revealed as a blue hypergiant instead of spectral type between B6 and B8 located at a distance of around 2 kiloparsecs with an absolute magnitude of approximately -8, putting it among the (visually) most luminous stars of the Milky Way[1].
References
- ^ a b c Chentsov, E. L. (2004). "HD 183143: A Hypergiant". Astronomy Letters. 30: 325–331. Bibcode:2004AstL...30..325C. doi:10.1134/1.1738155.
- ^ Gaia Collaboration (2016). "VizieR Online Data Catalog: Gaia DR1 (Gaia Collaboration, 2016)". VizieR On-line Data Catalog: I/337. Originally published in: Astron. Astrophys. 1337. Bibcode:2016yCat.1337....0G.
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