HD 53811

This article is about H Puppis. Not to be confused with h¹ Puppis or h² Puppis.

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]

HD 53811

Location of HD 53811 (circled)
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
H Puppis, CD-49°2587, GC 9348, GSC 08126-02550, HIP 34059, HR 2672, HD 53811, SAO 218427
Database references
SIMBAD	data

References

1. 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
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. S2CID 119257644. Vizier catalog entry
3. 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.
4. 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
5. 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
6. 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.
7. 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
8. 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