  | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Pegasus |
| Right ascension | 21h 46m 04.364s [1] |
| Declination | +22° 56′ 55.96″ [1] |
| Apparent magnitude (V) | +5.266 [2] |
| Characteristics | |
| Spectral type | K0IbHdel0.5 [3] |
| U−B color index | +1.33 [4] |
| B−V color index | +1.41 [4] |
| Astrometry | |
| Proper motion (μ) |
RA: 8.299
[1]
mas/
yr Dec.: −2.478 [1] mas/ yr |
| Parallax (π) | 2.3673 ± 0.1279 mas [1] |
| Distance | 1,380 ± 70
ly (420 ± 20 pc) |
| Absolute magnitude (MV) | −4.03 [4] |
| Details | |
| Mass | 6.3 [5] M☉ |
| Radius | 81 [6] R☉ |
| Luminosity | 1,722–1,820 [6] L☉ |
| Surface gravity (log g) | 1.11 [7] cgs |
| Temperature | 4,185 [6] K |
| Metallicity [Fe/H] | +0.03 [7] dex |
| Rotational velocity (v sin i) | 19.5 [8] km/s |
| Age | 19.8 [5] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
12 Pegasi is a K-type supergiant star in the constellation of Pegasus. It has a spectral type of K0Ib Hdel0.5, [9] which indicates that it is a less luminous K-type supergiant with strong H-δ Balmer lines. The star has expanded to 81 times the radius of the Sun, and has an effective temperature of 4,185 K. [6]
References
- ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv: 2012.01533. Bibcode: 2021A&A...649A...1G. doi: 10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi: 10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
- ^ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode: 2000A&A...355L..27H. ISSN 0004-6361.
- ^ Keenan, Philip C.; McNeil, Raymond C. (October 1989). "The Perkins Catalog of Revised MK Types for the Cooler Stars". The Astrophysical Journal Supplement Series. 71: 245. Bibcode: 1989ApJS...71..245K. doi: 10.1086/191373. ISSN 0067-0049.
- ^ a b c Melnik, A. M.; Dambis, A. K. (2020). "VizieR Online Data Catalog: Kinematic data for high luminosity stars (Melnik+, 2020)". Vizier Online Data Catalog (Other). Bibcode: 2020yCatp017036502M.
- ^ a b Tetzlaff, N.; et al. (January 2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410 (1): 190–200. arXiv: 1007.4883. Bibcode: 2011MNRAS.410..190T. doi: 10.1111/j.1365-2966.2010.17434.x. S2CID 118629873.
- ^ a b c d Messineo, M.; Brown, A. G. A. (July 2019). "A Catalog of Known Galactic K-M Stars of Class I Candidate Red Supergiants in Gaia DR2". The Astronomical Journal. 158 (1): 20. arXiv: 1905.03744. Bibcode: 2019AJ....158...20M. doi: 10.3847/1538-3881/ab1cbd. ISSN 0004-6256. S2CID 148571616.
- ^ a b Wu, Yue; et al. (2010). "Coudé-feed stellar spectral library – atmospheric parameters". Astronomy & Astrophysics. 525: A71. arXiv: 1009.1491. Bibcode: 2011A&A...525A..71W. doi: 10.1051/0004-6361/201015014. S2CID 53480665.
- ^ De Medeiros, J. R.; Udry, S.; Burki, G.; Mayor, M. (2002). "A catalog of rotational and radial velocities for evolved stars. II. Ib supergiant stars". Astronomy and Astrophysics. 395: 97–98. Bibcode: 2002A&A...395...97D. doi: 10.1051/0004-6361:20021214.
- ^ Keenan, Philip C.; McNeil, Raymond C. (October 1989). "The Perkins catalog of revised MK types for the cooler stars". The Astrophysical Journal Supplement Series. 71: 245–266. Bibcode: 1989ApJS...71..245K. doi: 10.1086/191373. ISSN 0067-0049. S2CID 123149047.
| Stars |
| ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||
|
Star clusters |
| ||||||||||||
| Nebulae |
| ||||||||||||
| Galaxies |
| ||||||||||||
| |||||||||||||
| |||||||||||||
 | This supergiant-related article is a stub. You can help Wikipedia by expanding it. |
| |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Pegasus |
| Right ascension | 21h 46m 04.364s [1] |
| Declination | +22° 56′ 55.96″ [1] |
| Apparent magnitude (V) | +5.266 [2] |
| Characteristics | |
| Spectral type | K0IbHdel0.5 [3] |
| U−B color index | +1.33 [4] |
| B−V color index | +1.41 [4] |
| Astrometry | |
| Proper motion (μ) |
RA: 8.299
[1]
mas/
yr Dec.: −2.478 [1] mas/ yr |
| Parallax (π) | 2.3673 ± 0.1279 mas [1] |
| Distance | 1,380 ± 70
ly (420 ± 20 pc) |
| Absolute magnitude (MV) | −4.03 [4] |
| Details | |
| Mass | 6.3 [5] M☉ |
| Radius | 81 [6] R☉ |
| Luminosity | 1,722–1,820 [6] L☉ |
| Surface gravity (log g) | 1.11 [7] cgs |
| Temperature | 4,185 [6] K |
| Metallicity [Fe/H] | +0.03 [7] dex |
| Rotational velocity (v sin i) | 19.5 [8] km/s |
| Age | 19.8 [5] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
12 Pegasi is a K-type supergiant star in the constellation of Pegasus. It has a spectral type of K0Ib Hdel0.5, [9] which indicates that it is a less luminous K-type supergiant with strong H-δ Balmer lines. The star has expanded to 81 times the radius of the Sun, and has an effective temperature of 4,185 K. [6]
References
- ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv: 2012.01533. Bibcode: 2021A&A...649A...1G. doi: 10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi: 10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
- ^ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode: 2000A&A...355L..27H. ISSN 0004-6361.
- ^ Keenan, Philip C.; McNeil, Raymond C. (October 1989). "The Perkins Catalog of Revised MK Types for the Cooler Stars". The Astrophysical Journal Supplement Series. 71: 245. Bibcode: 1989ApJS...71..245K. doi: 10.1086/191373. ISSN 0067-0049.
- ^ a b c Melnik, A. M.; Dambis, A. K. (2020). "VizieR Online Data Catalog: Kinematic data for high luminosity stars (Melnik+, 2020)". Vizier Online Data Catalog (Other). Bibcode: 2020yCatp017036502M.
- ^ a b Tetzlaff, N.; et al. (January 2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410 (1): 190–200. arXiv: 1007.4883. Bibcode: 2011MNRAS.410..190T. doi: 10.1111/j.1365-2966.2010.17434.x. S2CID 118629873.
- ^ a b c d Messineo, M.; Brown, A. G. A. (July 2019). "A Catalog of Known Galactic K-M Stars of Class I Candidate Red Supergiants in Gaia DR2". The Astronomical Journal. 158 (1): 20. arXiv: 1905.03744. Bibcode: 2019AJ....158...20M. doi: 10.3847/1538-3881/ab1cbd. ISSN 0004-6256. S2CID 148571616.
- ^ a b Wu, Yue; et al. (2010). "Coudé-feed stellar spectral library – atmospheric parameters". Astronomy & Astrophysics. 525: A71. arXiv: 1009.1491. Bibcode: 2011A&A...525A..71W. doi: 10.1051/0004-6361/201015014. S2CID 53480665.
- ^ De Medeiros, J. R.; Udry, S.; Burki, G.; Mayor, M. (2002). "A catalog of rotational and radial velocities for evolved stars. II. Ib supergiant stars". Astronomy and Astrophysics. 395: 97–98. Bibcode: 2002A&A...395...97D. doi: 10.1051/0004-6361:20021214.
- ^ Keenan, Philip C.; McNeil, Raymond C. (October 1989). "The Perkins catalog of revised MK types for the cooler stars". The Astrophysical Journal Supplement Series. 71: 245–266. Bibcode: 1989ApJS...71..245K. doi: 10.1086/191373. ISSN 0067-0049. S2CID 123149047.
| Stars |
| ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||
|
Star clusters |
| ||||||||||||
| Nebulae |
| ||||||||||||
| Galaxies |
| ||||||||||||
| |||||||||||||
| |||||||||||||
|
| This supergiant-related article is a stub. You can help Wikipedia by expanding it. |