HD 118508

HD 118508
Observation data; Epoch J2000 Equinox J2000
Constellation	Boötes
Right ascension	13h 36m 59.08289s
Declination	+24° 36′ 47.8734″
Apparent magnitude (V)	5.8021±0.0017
Characteristics
Spectral type	M2III
U−B color index	+1.85
B−V color index	+1.58
Astrometry
Radial velocity (Rv)	−35.69±0.18 km/s
Proper motion (μ)	RA: -26.20 mas/yr ; Dec.: -2.02 mas/yr
Parallax (π)	7.11 ± 0.34 mas
Distance	460 ± 20 ly ; (141 ± 7 pc)
Details
Luminosity	324 L☉
Temperature	3,817 K
Other designations
	BD+25 2652, FK5 3085, HD 118508, HIP 66417, HR 5123, SAO 82905.
Database references
SIMBAD	data

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]

References

^ ^a ^b ^c ^d ^e 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.
^ ^a ^b 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.
^ 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
^ ^a ^b Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode:1986EgUBV........0M
^ ^a ^b 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
^ Percy, John R.; Au, Winnie (November 1994), "APT Observations of Small-Amplitude Red Variables", Information Bulletin on Variable Stars (4114): 1, Bibcode:1994IBVS.4114....1P

External links

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[vanLeeuwen2007-1] 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.

[aa430_165-2] 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.

[mnras389_2_869-3] 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

[MERMILLIOD-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

[Mcdonald2012-5] 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

[ibvs4114_1-6] Percy, John R.; Au, Winnie (November 1994), "APT Observations of Small-Amplitude Red Variables", Information Bulletin on Variable Stars (4114): 1, Bibcode:1994IBVS.4114....1P

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Observation data Epoch J2000 Equinox J2000
Constellation	Boötes
Right ascension	13^h 36^m 59.08289^s^[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 (R_v)	−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 mas^[1]
Distance	460 ± 20 ly (141 ± 7 pc)

Details

Luminosity	324^[5] `L`_☉
Temperature	3,817^[5] K

Other designations
BD+25 2652, FK5 3085, HD 118508, HIP 66417, HR 5123, SAO 82905.
Database references
SIMBAD	data