Astronomy:HD 15524

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Short description: Binary star system in the constellation Aries
HD 15524
Observation data
Equinox J2000.0]] (ICRS)
Constellation Aries
Right ascension  02h 30m 32.3544s[1]
Declination +25° 14′ 06.107″[1]
Apparent magnitude (V) 5.90[2]
(5.97 / 10.4)[3]
Characteristics
HD 15524 A
Spectral type F6 IV[4] or F4 V[5]
B−V color index 0.412±0.006[6]
Astrometry
Radial velocity (Rv)−9.60±1.5[7] km/s
Proper motion (μ) RA: +62.407±0.027[1] mas/yr
Dec.: −75.827±0.026[1] mas/yr
Parallax (π)19.32 ± 0.44[8] mas
Distance169 ± 4 ly
(52 ± 1 pc)
Absolute magnitude (MV)2.44[6]
Details
HD 15524 A
Mass1.31[9] M☉
Luminosity10.01[10] L☉
Surface gravity (log g)3.92±0.14[9] cgs
Temperature6,665±227[9] K
Metallicity [Fe/H]0.11±0.05[11] dex
Rotational velocity (v sin i)59.8±3.0[6] km/s
Age1.633[9] Gyr
Other designations
BD+24° 358, FK5 2171, HD 15524, HIP 11670, HR 728, SAO 75407[2]
Database references
SIMBADdata

HD 15524 is a wide binary star[3] in the northern zodiac constellation of Aries. Located approximately 51.76 parsecs (168.8 ly) away,[8] the primary, a yellow-white subgiant[4] or main sequence[5] star has an apparent magnitude of 5.97, meaning that it can be viewed with the naked eye under good conditions. The secondary, separated from the primary by 12.4 arcseconds, has an apparent magnitude of 10.4.[3]

This system is the likely source of X-ray emission coming from these coordinates.[12]

References

  1. ↑ 1.0 1.1 1.2 1.3 Brown, A. G. A et al. (2016). "Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties". Astronomy and Astrophysics 595: A2. doi:10.1051/0004-6361/201629512. Bibcode: 2016A&A...595A...2G. 
  2. ↑ 2.0 2.1 "HD 15524". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+15524. 
  3. ↑ 3.0 3.1 3.2 Eggleton, P. P.; Tokovinin, A. A. (2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society 389 (2): 869. doi:10.1111/j.1365-2966.2008.13596.x. Bibcode: 2008MNRAS.389..869E. 
  4. ↑ 4.0 4.1 Harlan, E. A. (September 1969). "Mk classifications for F and G-type stars". Astronomical Journal 74: 916. doi:10.1086/110881. Bibcode: 1969AJ.....74..916H. 
  5. ↑ 5.0 5.1 Abt, H. A (1985). "Visual multiples. VIII - 1000 MK types". Astrophysical Journal Supplement Series 59: 95. doi:10.1086/191064. Bibcode: 1985ApJS...59...95A. 
  6. ↑ 6.0 6.1 6.2 Ammler-von Eiff, Matthias; Reiners, Ansgar (June 2012), "New measurements of rotation and differential rotation in A-F stars: are there two populations of differentially rotating stars?", Astronomy & Astrophysics 542: A116, doi:10.1051/0004-6361/201118724, Bibcode: 2012A&A...542A.116A. 
  7. ↑ 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. Bibcode: 2006AstL...32..759G. 
  8. ↑ 8.0 8.1 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V. 
  9. ↑ 9.0 9.1 9.2 9.3 David, Trevor J.; Hillenbrand, Lynne A. (2015), "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, doi:10.1088/0004-637X/804/2/146, Bibcode: 2015ApJ...804..146D. 
  10. ↑ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A. 
  11. ↑ Ramírez, I. et al. (September 2012), "Lithium Abundances in nearby FGK Dwarf and Subgiant Stars: Internal Destruction, Galactic Chemical Evolution, and Exoplanets", The Astrophysical Journal 756 (1): 46, doi:10.1088/0004-637X/756/1/46, Bibcode: 2012ApJ...756...46R. 
  12. ↑ Haakonsen, Christian Bernt; Rutledge, Robert E. (September 2009). "XID II: Statistical Cross-Association of ROSAT Bright Source Catalog X-ray Sources with 2MASS Point Source Catalog Near-Infrared Sources". The Astrophysical Journal Supplement 184 (1): 138–151. doi:10.1088/0067-0049/184/1/138. Bibcode: 2009ApJS..184..138H. 



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