HD 28246

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HD 28246
Observation data
Epoch J2000      Equinox J2000
Constellation Caelum
Right ascension 04h 25m 19.12s[1]
Declination −44° 09′ 39.22″[1]
Apparent magnitude (V) 6.383±0.010[2]
Characteristics
Evolutionary stage main sequence star
Spectral type F5.5V[3]
B−V color index 0.457±0.004[4]
Astrometry
Radial velocity (Rv)15.68±0.10[1] km/s
Proper motion (μ) RA: 27.230[1] mas/yr
Dec.: 66.685[1] mas/yr
Parallax (π)26.7624 ± 0.0312[1] mas
Distance121.9 ± 0.1 ly
(37.37 ± 0.04 pc)
Absolute magnitude (MV)3.55[4]
Details
Mass1.36+0.29
−0.18[5] M☉
Radius1.39+0.04
−0.16[1] R☉
Luminosity3.19±0.01[1] L☉
Surface gravity (log g)4.29+0.11
−0.07[5] cgs
Temperature6556+411
−111[1] K
Metallicity [Fe/H]0.15+0.12
−0.14[6] dex
Rotational velocity (v sin i)8[7] km/s
Age1.58[8] Gyr
Other designations
1 G. Caeli, CD−44 1546, HIP 20630, HR 1404, SAO 216790
Database references
SIMBADdata

HD 28246 (HR 1404) is a solitary star located in the constellation Caelum. With an apparent magnitude of 6.393, it’s barely visible to the unaided eye. The star is located 121.9 light years away from the Solar System, but is drifting away with a radial velocity of 15.68 km/s.

Properties[]

HD 28246 is an F-type main sequence star with 1.36 times the Sun’s mass, and 1.39 times the Sun’s radius. It radiates at 3.199 solar luminosities, and has an effective temperature of 6,556 K, which gives it a yellow-white hue. HD 28246 is metal-rich, with 141.25% the abundance of heavy metals compared to the Sun. This star is a slow rotator, with a projected rotational velocity of 8 km/s.

References[]

  1. ^ a b c d e f g h i 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.
  2. ^ a b Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000-03-01). "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.
  3. ^ a b Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Bubar, E. J.; McGahee, C. E.; O'Donoghue, A. A.; Knox, E. R. (2006-06-02). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc--The Southern Sample". The Astronomical Journal. 132 (1): 161–170. arXiv:astro-ph/0603770. doi:10.1086/504637. ISSN 0004-6256. S2CID 119476992.
  4. ^ a b c Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. Pleiades Publishing Ltd. 38 (5): 331–346. arXiv:1108.4971. doi:10.1134/s1063773712050015. ISSN 1063-7737. S2CID 119257644.
  5. ^ a b c Stassun, Keivan G.; Oelkers, Ryan J.; Paegert, Martin; Torres, Guillermo; Pepper, Joshua; Lee, Nathan De; Collins, Kevin; Latham, David W.; Muirhead, Philip S.; Chittidi, Jay; Rojas-Ayala, Bárbara; Fleming, Scott W.; Rose, Mark E.; Tenenbaum, Peter; Ting, Eric B.; Kane, Stephen R.; Barclay, Thomas; Bean, Jacob L.; Brassuer, C. E.; Charbonneau, David; Ge, Jian; Lissauer, Jack J.; Mann, Andrew W.; McLean, Brian; Mullally, Susan; Narita, Norio; Plavchan, Peter; Ricker, George R.; Sasselov, Dimitar; Seager, S.; Sharma, Sanjib; Shiao, Bernie; Sozzetti, Alessandro; Stello, Dennis; Vanderspek, Roland; Wallace, Geoff; Winn, Joshua N. (2019-09-09). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. American Astronomical Society. 158 (4): 138. doi:10.3847/1538-3881/ab3467. hdl:1721.1/124721. ISSN 1538-3881. S2CID 166227927.
  6. ^ a b Ammons, S. Mark; Robinson, Sarah E.; Strader, Jay; Laughlin, Gregory; Fischer, Debra; Wolf, Aaron (2006-02-20). "The N2K Consortium. IV. New Temperatures and Metallicities for More than 100,000 FGK Dwarfs". The Astrophysical Journal. American Astronomical Society. 638 (2): 1004–1017. doi:10.1086/498490. ISSN 0004-637X. S2CID 118834752.
  7. ^ a b Nordström, B.; Mayor, M.; Andersen, J.; Holmberg, J.; Pont, F.; Jørgensen, B. R.; Olsen, E. H.; Udry, S.; Mowlavi, N. (2004-04-16). "The Geneva-Copenhagen survey of the Solar neighbourhood" (PDF). Astronomy & Astrophysics. EDP Sciences. 418 (3): 989–1019. doi:10.1051/0004-6361:20035959. ISSN 0004-6361. S2CID 11027621.
  8. ^ a b David, Trevor J.; Hillenbrand, Lynne A. (2015-05-12). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. American Astronomical Society. 804 (2): 146. doi:10.1088/0004-637x/804/2/146. ISSN 1538-4357. S2CID 33401607.
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