HD 180262

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HD 180262
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension 19h 15m 20.08999s[1]
Declination +15° 05′ 01.1456″[1]
Apparent magnitude (V) 5.57[2] (5.75 + 7.69)[3]
Characteristics
Spectral type G8II-III + A1V[3]
U−B color index +0.85[2]
B−V color index +1.10[2]
R−I color index 0.54
Astrometry
Radial velocity (Rv) −25.2[4] km/s
Proper motion (μ) RA: +0.55[1] mas/yr
Dec.: −11.10[1] mas/yr
Parallax (π) 5.32 ± 0.9[1] mas
Distance approx. 600 ly
(approx. 190 pc)
Details
HD 180262 A
Radius 50[5] R
Luminosity 323[6] L
Surface gravity (log g) 2.0[7] cgs
Temperature 4,308[8] K
Metallicity [Fe/H] 0.21[8] dex
Rotational velocity (v sin i) 1.4[7] km/s
Other designations
BD+14° 3846, HD 180262, HIP 94624, HR 7300, SAO 104655.
Database references
SIMBAD data
Database references
SIMBAD data

HD 180262 is a wide double star in the equatorial constellation of Aquila. The pair have an angular separation of 89.823.[3]

References[edit]

  1. ^ a b c d e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752free to read. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. 
  2. ^ a b c Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV data. SIMBAD, Bibcode:1986EgUBV........0M 
  3. ^ a b c Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878free to read, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x 
  4. ^ 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. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. 
  5. ^ Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics", Astronomy and Astrophysics, 367: 521–524, arXiv:astro-ph/0012289free to read, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451 
  6. ^ McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037free to read, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x 
  7. ^ a b Lèbre, A.; de Laverny, P.; Do Nascimento, J. D., Jr.; de Medeiros, J. R. (May 2006), "Lithium abundances and rotational behavior for bright giant stars", Astronomy and Astrophysics, 450 (3): 1173−1179, Bibcode:2006A&A...450.1173L, doi:10.1051/0004-6361:20053485 
  8. ^ a b Greenstein, Jesse L.; Keenan, Philip C. (January 1958), "Abundances of Metals, CN, and CH in Giant Stars", Astrophysical Journal, 127: 172, Bibcode:1958ApJ...127..172G, doi:10.1086/146449 

External links[edit]