HD 128198

HD 128198
Observation data; Epoch J2000 Equinox J2000
Constellation	Boötes
Right ascension	14h 34m 38.5001s
Declination	+36° 37′ 33.83″
Apparent magnitude (V)	6.1657
Characteristics
Spectral type	K4III
U−B color index	+1.59
B−V color index	+1.38
Astrometry
Radial velocity (Rv)	−9.88±0.20 km/s
Proper motion (μ)	RA: −24.61 mas/yr ; Dec.: −46.29 mas/yr
Parallax (π)	6.43 ± 0.42 mas
Distance	510 ± 30 ly ; (160 ± 10 pc)
Details
Luminosity	161 L☉
Temperature	4,300 K
Metallicity [Fe/H]	−0.11±0.09 dex
Other designations
	BD+37° 2551, HD 128198, HIP 71277, HR 5448, SAO 64227.
Database references
SIMBAD	data

HD 128198 is a giant star in the northern constellation of Boötes.

References[edit]

^ ^a ^b ^c ^d ^e van Leeuwen, F. (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.
^ ^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, S2CID 17804304.
^ Sato, K.; Kuji, S. (November 1990), "MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington", Astronomy and Astrophysics Supplement Series, 85 (3): 1069–1087, Bibcode:1990A&AS...85.1069S.
^ ^a ^b Guetter, H. H.; Hewitt, A. V. (June 1984), "Photoelectric UBV photometry for 317 PZT and VZT stars", Publications of the Astronomical Society of the Pacific, 96: 441–443, Bibcode:1984PASP...96..441G, doi:10.1086/131362.
^ ^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, S2CID 118665352.
^ Taylor, B.J. (February 1999), "Catalogs of temperatures and [Fe/H] averages for evolved G and K stars", Astronomy and Astrophysics Supplement, 134 (3): 523–524, Bibcode:1999A&AS..134..523T, doi:10.1051/aas:1999153.

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[van_Leeuwen2007-1] van Leeuwen, F. (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.

[Famaey2005-2] 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.

[aass85_3_1069-3] Sato, K.; Kuji, S. (November 1990), "MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington", Astronomy and Astrophysics Supplement Series, 85 (3): 1069–1087, Bibcode:1990A&AS...85.1069S.

[pasp96_441-4] Guetter, H. H.; Hewitt, A. V. (June 1984), "Photoelectric UBV photometry for 317 PZT and VZT stars", Publications of the Astronomical Society of the Pacific, 96: 441–443, Bibcode:1984PASP...96..441G, doi:10.1086/131362.

[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, S2CID 118665352.

[aas134_523-6] Taylor, B.J. (February 1999), "Catalogs of temperatures and [Fe/H] averages for evolved G and K stars", Astronomy and Astrophysics Supplement, 134 (3): 523–524, Bibcode:1999A&AS..134..523T, doi:10.1051/aas:1999153.

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Observation data Epoch J2000 Equinox J2000
Constellation	Boötes
Right ascension	14^h 34^m 38.5001^s^[1]
Declination	+36° 37′ 33.83″^[1]
Apparent magnitude (V)	6.1657^[2]
Characteristics
Spectral type	K4III^[3]
U−B color index	+1.59^[4]
B−V color index	+1.38^[4]
Astrometry

Radial velocity (R_v)	−9.88±0.20^[2] km/s
Proper motion (μ)	RA: −24.61^[1] mas/yr Dec.: −46.29^[1] mas/yr
Parallax (π)	6.43 ± 0.42 mas^[1]
Distance	510 ± 30 ly (160 ± 10 pc)

Details

Luminosity	161^[5] `L`_☉
Temperature	4,300^[5] K
Metallicity [Fe/H]	−0.11±0.09 ^[6] dex

Other designations
BD+37° 2551, HD 128198, HIP 71277, HR 5448, SAO 64227.
Database references
SIMBAD	data