HD_188385 Knowpia

HD 188385
Observation data; Epoch J2000 Equinox J2000
Constellation	Aquila
Right ascension	19h 54m 40.20001s
Declination	+07° 08′ 25.2647″
Apparent magnitude (V)	6.15
Characteristics
Spectral type	A2V
U−B color index	+0.04
B−V color index	+0.03
Astrometry
Radial velocity (Rv)	−16.0 km/s
Proper motion (μ)	RA: +28.60 mas/yr ; Dec.: −0.56 mas/yr
Parallax (π)	12.23 ± 0.42 mas
Distance	267 ± 9 ly ; (82 ± 3 pc)
Details
Luminosity	20 L☉
Temperature	8,839 K
Rotational velocity (v sin i)	118 km/s
Other designations
	BD+06° 4351, HD 188385, HIP 97970, HR 7598, SAO 125221.
Database references
SIMBAD	data

HD 188385 is an A-type star in the equatorial constellation of Aquila.

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 ^c Nicolet, B. (1978), "Photoelectric photometric Catalogue of homogeneous measurements in the UBV System", Astronomy and Astrophysics Supplement Series, 34: 1–49, Bibcode:1978A&AS...34....1N
^ Cowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819
^ Wilson, R. E. (1953), "General Catalogue of Stellar Radial Velocities", Carnegie Institute Washington D.C. Publication, Carnegie Institute of Washington, D.C., Bibcode:1953GCRV..C......0W
^ ^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
^ Royer, F.; Zorec, J.; Gómez, A. E. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics, 463 (2): 671–682, arXiv:astro-ph/0610785, Bibcode:2007A&A...463..671R, doi:10.1051/0004-6361:20065224, S2CID 18475298

Observation data Epoch J2000 Equinox J2000
Constellation	Aquila
Right ascension	19^h 54^m 40.20001^s^[1]
Declination	+07° 08′ 25.2647″^[1]
Apparent magnitude (V)	6.15^[2]
Characteristics
Spectral type	A2V^[3]
U−B color index	+0.04^[2]
B−V color index	+0.03^[2]
Astrometry

Radial velocity (R_v)	−16.0^[4] km/s
Proper motion (μ)	RA: +28.60^[1] mas/yr Dec.: −0.56^[1] mas/yr
Parallax (π)	12.23 ± 0.42 mas^[1]
Distance	267 ± 9 ly (82 ± 3 pc)

Details

Luminosity	20^[5] `L`_☉
Temperature	8,839^[5] K
Rotational velocity (v sin i)	118^[6] km/s

Other designations
BD+06° 4351, HD 188385, HIP 97970, HR 7598, SAO 125221.
Database references
SIMBAD	data