HD 44131
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Orion |
Right ascension | 06h 19m 59.60059s[1] |
Declination | −2° 56′ 40.1765″[1] |
Apparent magnitude (V) | 4.91[2] |
Characteristics | |
Spectral type | M1III[3] |
U−B color index | +1.96[4] |
B−V color index | +1.60[4] |
Astrometry | |
Radial velocity (Rv) | +48.60[5] km/s |
Proper motion (μ) | RA: -6.42[1] mas/yr Dec.: -1.26[1] mas/yr |
Parallax (π) | 7.02 ± 0.23[1] mas |
Distance | 460 ± 20 ly (142 ± 5 pc) |
Absolute magnitude (MV) | -0.86[2] |
Details | |
Luminosity | 606[6] L☉ |
Temperature | 3,914[6] K |
Other designations | |
Database references | |
SIMBAD | data |
HD 44131 is a class M1III[3] (red giant) star in the constellation Orion. Its apparent magnitude is 4.91[2] and it is approximately 465 light years away based on parallax.[1]
References
- 1 2 3 4 5 6 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
- 1 2 3 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. Vizier catalog entry
- 1 2 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.
- 1 2 Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers. 42: 443. Bibcode:2014JAVSO..42..443M. Vizier catalog entry
- ↑ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
- 1 2 McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental parameters and infrared excesses of Hipparcos stars". Monthly Notices of the Royal Astronomical Society. 427: 343. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. Vizier catalog entry
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