Astronomy:HD 63513
| Observation data Epoch J2000.0 Equinox (celestial coordinates) | |
|---|---|
| Constellation | Volans |
| Right ascension | 07h 44m 43.8535s[1] |
| Declination | −66° 04′ 18.9536″[1] |
| Apparent magnitude (V) | 6.38 ± 0.01[2] |
| Characteristics | |
| Spectral type | G6/8 III[3] |
| U−B color index | +0.66[4] |
| B−V color index | +0.95[4] |
| Astrometry | |
| Radial velocity (Rv) | 1.4 ± 0.4[5] km/s |
| Proper motion (μ) | RA: −16.880[1] mas/yr Dec.: +48.274[1] mas/yr |
| Parallax (π) | 5.1439 ± 0.0162[1] mas |
| Distance | 634 ± 2 ly (194.4 ± 0.6 pc) |
| Absolute magnitude (MV) | −0.06[6] |
| Details[7] | |
| Mass | 3.14 ± 0.10 M☉ |
| Radius | 12.87 ± 0.22 R☉ |
| Luminosity | 102 ± 2 L☉ |
| Surface gravity (log g) | 2.83 ± 0.11 cgs |
| Temperature | 5116 ± 35 K |
| Metallicity [Fe/H] | +0.01 ± 0.03 dex |
| Rotational velocity (v sin i) | 1.9 ± 1.5[8] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 63513 (HR 3036) is a solitary star located in the southern circumpolar constellation Volans. It has an apparent magnitude of 6.38, placing it near the max naked eye visibility. The star is situated at a distance of 634 light years[1] but is receding with a heliocentric radial velocity of 1.4 km/s.[5]
This object is a star with the characteristics of a G6 and G8 giant.[3] At present it has 3.14 times the mass of the Sun but has expanded to almost 13 times the Sun's girth.[7] It shines at 102 solar luminosities from its enlarged photosphere at an effective temperature of 5,116 K,[7] which gives it a yellow glow. HD 63513 has an iron abundance 102% that of the Sun,[7] placing it at solar metallicity and spins modestly with a projected rotational velocity of 1.9 km/s.[8]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Brown, A. G. A. (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics 649: A1. doi:10.1051/0004-6361/202039657. Bibcode: 2021A&A...649A...1G. Gaia EDR3 record for this source at VizieR.
- ↑ 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.
- ↑ 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.
- ↑ 4.0 4.1 Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1 January 1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory 4: 99–110. Bibcode: 1966CoLPL...4...99J.
- ↑ 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.
- ↑ Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation" (in en). Astronomy Letters 38 (5): 331–346. doi:10.1134/S1063773712050015. ISSN 1063-7737. Bibcode: 2012AstL...38..331A.
- ↑ 7.0 7.1 7.2 7.3 Ottoni, G.; Udry, S.; Ségransan, D.; Buldgen, G.; Lovis, C.; Eggenberger, P.; Pezzotti, C.; Adibekyan, V. et al. (January 2022). "CORALIE radial-velocity search for companions around evolved stars (CASCADES): I. Sample definition and first results: Three new planets orbiting giant stars". Astronomy & Astrophysics 657: A87. doi:10.1051/0004-6361/202040078. ISSN 0004-6361. Bibcode: 2022A&A...657A..87O.
- ↑ 8.0 8.1 De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (January 2014). "A catalog of rotational and radial velocities for evolved stars: V. Southern stars⋆⋆⋆". Astronomy & Astrophysics 561: A126. doi:10.1051/0004-6361/201220762. ISSN 0004-6361. Bibcode: 2014A&A...561A.126D.
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