HD 53811
  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Puppis |
| Right ascension | 07h 03m 53.60846s[1] |
| Declination | −49° 35′ 02.1009″[1] |
| Apparent magnitude (V) | 4.92[2] |
| Characteristics | |
| Spectral type | A4IV[3] |
| U−B color index | +0.12[4] |
| B−V color index | +0.14[5] |
| Astrometry | |
| Radial velocity (Rv) | +26.80[6] km/s |
| Proper motion (μ) | RA: -52.78[1] mas/yr Dec.: +140.27[1] mas/yr |
| Parallax (π) | 16.51 ± 0.42 mas[1] |
| Distance | 198 ± 5 ly (61 ± 2 pc) |
| Absolute magnitude (MV) | 1.01[2] |
| Details | |
| Mass | 2.02[7] M☉ |
| Radius | 2.6[7] R☉ |
| Luminosity | 33.04[2] L☉ |
| Surface gravity (log g) | 3.95[8] cgs |
| Temperature | 8,396[8] K |
| Rotational velocity (v sin i) | 59[3] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 53811 is a class A4IV[3] (white subgiant) star in the constellation Puppis. Its apparent magnitude is 4.92[2] and it is approximately 198 light years away based on parallax.[1]
References
[edit]- ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600. Vizier catalog entry
- ^ a b c d 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. S2CID 119257644. Vizier catalog entry
- ^ a b c Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.
- ^ Mermilliod, J. C. (2006). "VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991)". VizieR On-line Data Catalog: II/168. Originally Published in: Institut d'Astronomie. 2168. Bibcode:2006yCat.2168....0M.Vizier catalog entry
- ^ Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers. 42 (2): 443. Bibcode:2014JAVSO..42..443M.Vizier catalog entry
- ^ Evans, D. S. (1967). "The Revision of the General Catalogue of Radial Velocities". Determination of Radial Velocities and Their Applications. 30: 57. Bibcode:1967IAUS...30...57E.
- ^ a b Allende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv:astro-ph/9911002. Bibcode:1999A&A...352..555A. Vizier catalog entry
- ^ a b David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. S2CID 33401607. Vizier catalog entry
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