Astronomy:HD 63584

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Short description: Star in the constellation Volans
HD 63584
Observation data
Equinox J2000.0]] (ICRS)
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[1] mas
Distance420 ± 3 ly
(128.8 ± 1.0 pc)
Absolute magnitude (MV)+0.68[6]
Details
Mass2.58±0.05[7] M☉
Radius3.09±0.37[8] R☉
Luminosity60±6[7] L☉
Surface gravity (log g)3.84±0.29[8] cgs
Temperature9,954±46[7] K
Metallicity71% solar
Metallicity [Fe/H]–0.15[9] dex
Rotational velocity (v sin i)19[10] km/s
Age256±23[7] Myr
Other designations
CD–69 475, HD 63584, HIP 37720, HR 3038, SAO 249943[11]
Database references
SIMBADdata

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]

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

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  2. ↑ 2.0 2.1 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P. et al. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics 355: L27–L30. ISSN 0004-6361. Bibcode: 2000A&A...355L..27H. https://ui.adsabs.harvard.edu/abs/2000A%26A...355L..27H/abstract. 
  3. ↑ 3.0 3.1 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. https://ui.adsabs.harvard.edu/abs/1975mcts.book.....H/abstract. 
  4. ↑ 4.0 4.1 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. https://ui.adsabs.harvard.edu/abs/1966CoLPL...4...99J/abstract. 
  5. ↑ 5.0 5.1 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. doi:10.1134/S1063773706110065. ISSN 1063-7737. Bibcode: 2006AstL...32..759G. https://ui.adsabs.harvard.edu/abs/2006AstL...32..759G/abstract. 
  6. ↑ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331–346. doi:10.1134/S1063773712050015. ISSN 1063-7737. Bibcode: 2012AstL...38..331A. https://ui.adsabs.harvard.edu/abs/2012AstL...38..331A/abstract. 
  7. ↑ 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 Zorec, J.; Royer, F. (January 2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics 537: A120. doi:10.1051/0004-6361/201117691. ISSN 0004-6361. Bibcode: 2012A&A...537A.120Z. https://ui.adsabs.harvard.edu/abs/2012A%26A...537A.120Z/abstract. 
  8. ↑ 8.0 8.1 8.2 Stassun, Keivan G. (September 2018). "The TESS Input Catalog and Candidate Target List". The Astronomical Journal 156 (3): 102. doi:10.3847/1538-3881/aad050. ISSN 0004-6256. Bibcode: 2018AJ....156..102S. 
  9. ↑ 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. doi:10.1051/0004-6361/201935765. ISSN 0004-6361. Bibcode: 2019A&A...628A..94A. https://ui.adsabs.harvard.edu/abs/2019A%26A...628A..94A/abstract. 
  10. ↑ 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. doi:10.1051/0004-6361:20065224. ISSN 0004-6361. Bibcode: 2007A&A...463..671R. https://ui.adsabs.harvard.edu/abs/2007A%26A...463..671R/abstract. 
  11. ↑ "HR 3038". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HR+3038. 



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