// Workers AI · dad joke modeIs HD 55151 a star? Does it have a stellar reputation?
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Volans[1] |
| Right ascension | 07h 06m 14.31s[2] |
| Declination | −68° 50′ 15.3″[2] |
| Apparent magnitude (V) | 6.47±0.01[3] |
| Characteristics | |
| Evolutionary stage | red giant branch[2] |
| Spectral type | K0 III[4] |
| U−B color index | +0.87[5] |
| B−V color index | +1.04[5] |
| Astrometry | |
| Radial velocity (Rv) | −13±0.14[2] km/s |
| Proper motion (μ) | RA: +5.690 mas/yr[2] Dec.: −2.103 mas/yr[2] |
| Parallax (π) | 6.3734±0.0192 mas[2] |
| Distance | 512 ± 2 ly (156.9 ± 0.5 pc) |
| Absolute magnitude (MV) | +0.43[1] |
| Details | |
| Mass | 2.00±0.27[6] M☉ |
| Radius | 12.7[7] R☉ |
| Luminosity | 49[7] L☉ |
| Surface gravity (log g) | 2.77±0.14[8] cgs |
| Temperature | 4,282[7] K |
| Metallicity [Fe/H] | −0.02±0.05[8] dex |
| Rotational velocity (v sin i) | <1[9] km/s |
| Age | 345[2] Myr |
| Other designations | |
| 7 G. Volantis, CD−68 447, HD 55151, HIP 34270, HR 2712, SAO 249740 | |
| Database references | |
| SIMBAD | data |
HD 55151 (HR 2712) is a solitary star located in the circumpolar constellation Volans. With an apparent magnitude of 6.47,[3] it is near the limit of naked eye visibility. The star is located 512 light years[2] away from the Solar System, but is drifting closer with a heliocentric radial velocity of −13 km/s.[2]
HD 55151 has a stellar classification of K0 III,[4] which states that it is an early K-type star that has exhausted hydrogen at its core and left the main sequence. It has twice the Sun's mass,[6] but has expanded to 13 times the Sun's girth.[7] It radiates at 49 solar luminosities from its enlarged photosphere at an effective temperature of 4,282 K,[7] which gives it the orangish-yellow hue of a K-type star. HD 55151 belongs to the thin disk population,[10] and is slightly metal deficient. However, it has a projected rotational velocity that is too low to be measured.[9]
References
[edit]- 1 2 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. XHIP record for this object at VizieR.
- 1 2 3 4 5 6 7 8 9 10 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- 1 2 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (1 March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
- 1 2 Houk, N.; Cowley, A. P. (1 January 1975). University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0. Bibcode:1975mcts.book.....H.
- 1 2 Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1 January 1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99–110. Bibcode:1966CoLPL...4...99J.
- 1 2 Stassun, Keivan G.; Oelkers, Ryan J.; et al. (1 September 2018). "The TESS Input Catalog and Candidate Target List". The Astronomical Journal. 156 (3): 102. arXiv:1706.00495. Bibcode:2018AJ....156..102S. doi:10.3847/1538-3881/aad050. ISSN 0004-6256. S2CID 73582386.
- 1 2 3 4 5 Hon, Marc; Huber, Daniel; Kuszlewicz, James S.; Stello, Dennis; Sharma, Sanjib; Tayar, Jamie; Zinn, Joel C.; Vrard, Mathieu; Pinsonneault, Marc H. (2021). "A "Quick Look" at All-sky Galactic Archeology with TESS: 158,000 Oscillating Red Giants from the MIT Quick-look Pipeline". The Astrophysical Journal. 919 (2): 131. arXiv:2108.01241. Bibcode:2021ApJ...919..131H. doi:10.3847/1538-4357/ac14b1.
- 1 2 Alves, S.; Benamati, L.; Santos, N. C.; Adibekyan, V. Zh.; Sousa, S. G.; Israelian, G.; De Medeiros, J. R.; Lovis, C.; Udry, S. (1 April 2015). "Determination of the spectroscopic stellar parameters for 257 field giant stars★". Monthly Notices of the Royal Astronomical Society. 448 (3): 2749–2765. arXiv:1503.02556. Bibcode:2015MNRAS.448.2749A. doi:10.1093/mnras/stv189. ISSN 0035-8711.
- 1 2 De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (1 January 2014). "A catalog of rotational and radial velocities for evolved stars. V. Southern stars". Astronomy and Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762.
- ↑ Adibekyan, V. Zh.; Benamati, L.; Santos, N. C.; Alves, S.; Lovis, C.; Udry, S.; Israelian, G.; Sousa, S. G.; Tsantaki, M.; Mortier, A.; Sozzetti, A.; De Medeiros, J. R. (1 June 2015). "Chemical abundances and kinematics of 257 G-, K-type field giants. Setting a base for further analysis of giant-planet properties orbiting evolved stars". Monthly Notices of the Royal Astronomical Society. 450 (2): 1900–1915. arXiv:1503.08346. Bibcode:2015MNRAS.450.1900A. doi:10.1093/mnras/stv716. ISSN 0035-8711.
