HD 63584 (HR 3038) is a solitary star in the southern circumpolar constellation Volans. With an apparent magnitude of 6.15,[2] it is barely visible to the naked eye under ideal conditions. The star is located 420 light years[1] away based on parallax, but is drifting away with a radial velocity of 10.4 km/s.[5]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Volans |
| Right ascension | 07h 44m 13.00s[1] |
| Declination | –69° 49′ 17.80″[1] |
| Apparent magnitude (V) | 6.15±0.01[2] |
| Characteristics | |
| Spectral type | A0 IV/V[3] |
| U−B color index | –0.09[4] |
| B−V color index | –0.06[4] |
| Astrometry | |
| Radial velocity (Rv) | 10.4±1.1[5] km/s |
| Proper motion (μ) | RA: –41.901[1] mas/yr Dec.: 9.492[1] mas/yr |
| Parallax (π) | 7.7630 ± 0.0578 mas[1] |
| Distance | 420 ± 3 ly (128.8 ± 1.0 pc) |
| Absolute magnitude (MV) | +0.68[6] |
| Details | |
| Mass | 2.58±0.05[7] M☉ |
| Radius | 3.09±0.37[8] R☉ |
| Luminosity | 60±6[7] L☉ |
| Surface gravity (log g) | 3.84±0.29[8] cgs |
| Temperature | 9,954±46[7] K |
| Metallicity | 71% solar |
| Metallicity [Fe/H] | –0.15[9] dex |
| Rotational velocity (v sin i) | 19[10] km/s |
| Age | 256±23[7] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 63584 has a classification of "A0 IV/V",[3] which states it is an A0 star with the characteristics of a main sequence and subgiant star. It has 2.58 times the Sun's mass,[7] but a radius around 3 times that of the Sun.[8] HD 63584 radiates at 60 times the Sun's luminosity[7] from its photosphere at an effective temperature of 9,954 K,[7] which gives it the blueish-white hue of an A0 star. Despite the "IV" part of the classification, HD 63584 is only 256 million years old,[7] having completed only 59.6% of its main sequence lifetime.[7]
References
edit- ^ a b c d e f Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ a b Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. ISSN 0004-6361.
- ^ a b Houk, N.; Cowley, A. P. (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.
- ^ a b Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99–110. Bibcode:1966CoLPL...4...99J.
- ^ a b Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. ISSN 1063-7737. S2CID 119231169.
- ^ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. ISSN 1063-7737. S2CID 119257644.
- ^ a b c d e f g h i Zorec, J.; Royer, F. (January 2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. ISSN 0004-6361. S2CID 55586789.
- ^ a b c Stassun, Keivan G. (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.
- ^ Anders, F.; et al. (August 2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy and Astrophysics. 628: A94. arXiv:1904.11302. Bibcode:2019A&A...628A..94A. doi:10.1051/0004-6361/201935765. ISSN 0004-6361. S2CID 131780028.
- ^ Royer, F.; Zorec, J.; Gómez, A. E. (1 February 2007). "Rotational velocities of A-type stars. III. Velocity distributions". Astronomy and Astrophysics. 463 (2): 671–682. arXiv:astro-ph/0610785. Bibcode:2007A&A...463..671R. doi:10.1051/0004-6361:20065224. ISSN 0004-6361. S2CID 18475298.
- ^ "HR 3038". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 25 November 2021.