HD 118508

HD 118508 is a variable star in the northern constellation of Boötes. It varies marginally in luminosity with an amplitude of 0.04 in magnitude.[6]

HD 118508
Observation data
Epoch J2000      Equinox J2000
Constellation Boötes
Right ascension 13h 36m 59.08289s[1]
Declination +24° 36′ 47.8734″[1]
Apparent magnitude (V) 5.8021±0.0017[2]
Characteristics
Spectral type M2III[3]
U−B color index +1.85[4]
B−V color index +1.58[4]
Astrometry
Radial velocity (Rv)−35.69±0.18[2] km/s
Proper motion (μ) RA: -26.20[1] mas/yr
Dec.: -2.02[1] mas/yr
Parallax (π)7.11 ± 0.34[1] mas
Distance460 ± 20 ly
(141 ± 7 pc)
Details
Luminosity324[5] L☉
Temperature3,817[5] K
Other designations
BD+25 2652, FK5 3085, HD 118508, HIP 66417, HR 5123, SAO 82905.
Database references
SIMBADdata

References
  1. van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357, S2CID 18759600.
  2. Famaey, B.; et al. (2005), "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters", Astronomy and Astrophysics, 430: 165–186, arXiv:astro-ph/0409579, Bibcode:2005A&A...430..165F, doi:10.1051/0004-6361:20041272, S2CID 17804304.
  3. 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:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976
  4. Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode:1986EgUBV........0M
  5. 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:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x, S2CID 118665352
  6. Percy, John R.; Au, Winnie (November 1994), "APT Observations of Small-Amplitude Red Variables", Information Bulletin on Variable Stars, 4114 (4114): 1, Bibcode:1994IBVS.4114....1P


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