  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Puppis |
| Right ascension | 07h 39m 27.33834s[1] |
| Declination | −38° 18′ 28.8786″[1] |
| Apparent magnitude (V) | 4.84[2] |
| Characteristics | |
| Spectral type | B2.5V[3] |
| U−B color index | -0.66[2] |
| B−V color index | -0.19[2] |
| Astrometry | |
| Radial velocity (Rv) | +26.40[4] km/s |
| Proper motion (μ) | RA: -21.11[1] mas/yr Dec.: +15.81[1] mas/yr |
| Parallax (π) | 5.87 ± 0.16 mas[1] |
| Distance | 560 ± 20 ly (170 ± 5 pc) |
| Absolute magnitude (MV) | -1.51[5] |
| Details | |
| Mass | 6.5[6] M☉ |
| Luminosity | 1,300[5] L☉ |
| Temperature | 16,849[5] K |
| Metallicity [Fe/H] | 0.00[7] dex |
| Rotational velocity (v sin i) | 138[3] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 61831 (d1 Puppis) is a class B2.5V[3] (blue dwarf) star in the constellation Puppis. Its apparent magnitude is 4.84[2] and it is approximately 556 light years away based on parallax.[1]
- ^ 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 Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
- ^ 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.
- ^ Wilson, R. E. (1953). "General Catalogue of Stellar Radial Velocities". Carnegie Institute Washington D.C. Publication. Carnegie Institution for Science. Bibcode:1953GCRV..C......0W. LCCN 54001336.
- ^ a b c Silaj, J.; Landstreet, J. D. (2014). "Accurate age determinations of several nearby open clusters containing magnetic Ap stars". Astronomy & Astrophysics. 566: A132. arXiv:1407.4531. Bibcode:2014A&A...566A.132S. doi:10.1051/0004-6361/201321468. S2CID 53370832.
- ^ Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (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. Vizier catalog entry
- ^ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771–782. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031. S2CID 118345778. Vizier catalog entry