HD 201507

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HD 201507
Observation data
Epoch J2000      Equinox J2000
Constellation Equuleus
Right ascension 21h 09m 58.26s[1]
Declination 02° 56′ 37.0″[1]
Apparent magnitude (V) 6.43±0.01[2]
Characteristics
Spectral type F2V[3]
B−V color index 0.38±0.01[4]
Astrometry
Radial velocity (Rv)−44±2[5] km/s
Proper motion (μ) RA: +48.902[1] mas/yr
Dec.: +10.883[1] mas/yr
Parallax (π)15.2530 ± 0.3122[1] mas
Distance214 ± 4 ly
(66 ± 1 pc)
Absolute magnitude (MV)2.12[4]
Details
Mass1.35[6] M☉
Radius2.25+0.09
−0.12[1] R☉
Luminosity9.147±0.21[1] L☉
Surface gravity (log g)3.831[7] cgs
Temperature6686+184
−131[1] K
Metallicity [Fe/H]0.10+0.12
−0.13[8] dex
Rotational velocity (v sin i)16[7] km/s
Age1.2[7] Gyr
Other designations
13 G. Equulei, BD+02° 4311, HIP 104481, HR 8095[9]
Database references
SIMBADdata

HD 201507 (HR 8095) is a star in the constellation Equuleus. With an apparent magnitude of 6.43, it's near the naked eye visibility. This star is located 214 light-years (66 pc) based on parallax, but is drifting closer with a radial velocity of -44 km/s.

Properties[]

HD 201507 is an F-type main-sequence star with 1.35 time the Sun's mass, and 2.25 times the radius. It radiates at 9 solar luminosities, and has a yellow-white hue, which corresponds to an effective temperature of 6,686 K. HD 201507 is metal-rich, with 26% more heavy metals than the Sun. This star has a modest rotational rate at 16 km/s, and is estimated to be 1.2 billion years old, about 4 times younger than the Sun.

References[]

  1. ^ a b c d e f g 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. ^ 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. ^ Houk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5". Michigan Spectral Survey. 05: 0. Bibcode:1999MSS...C05....0H.
  4. ^ a b Anderson, E.; Francis, Ch. (2012-05-01). "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.
  5. ^ Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities". Carnegie Institute Washington D.C. Publication. Bibcode:1953GCRV..C......0W.
  6. ^ David, Trevor J.; Hillenbrand, Lynne A. (2015-05-01). "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. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. ISSN 0004-637X. S2CID 33401607.
  7. ^ a b c Nordström, B.; Mayor, M.; Andersen, J.; Holmberg, J.; Pont, F.; Jørgensen, B. R.; Olsen, E. H.; Udry, S.; Mowlavi, N. (2004-05-01). "The Geneva-Copenhagen survey of the Solar neighbourhood. Ages, metallicities, and kinematic properties of ~14 000 F and G dwarfs". Astronomy and Astrophysics. 418: 989–1019. arXiv:astro-ph/0405198. Bibcode:2004A&A...418..989N. doi:10.1051/0004-6361:20035959. ISSN 0004-6361. S2CID 11027621.
  8. ^ Ammons, S. Mark; Robinson, Sarah E.; Strader, Jay; Laughlin, Gregory; Fischer, Debra; Wolf, Aaron (2006-02-01). "The N2K Consortium. IV. New Temperatures and Metallicities for More than 100,000 FGK Dwarfs". The Astrophysical Journal. 638 (2): 1004–1017. arXiv:astro-ph/0510237. Bibcode:2006ApJ...638.1004A. doi:10.1086/498490. ISSN 0004-637X. S2CID 118834752.
  9. ^ "HD 201507". sim-id. Retrieved 2021-07-05.
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