HD 90089

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HD 90089
Observation data
Epoch J2000      Equinox J2000
Constellation Camelopardalis
Right ascension 10h 31m 04.6638s
Declination +82° 33′ 30.915″
Apparent magnitude (V) 5.25[1]
Characteristics
Spectral type F2V[1]
U−B color index -0.05
B−V color index 0.40[1]
Variable type Variable star
NSV 4864
Astrometry
Radial velocity (Rv) 7 km/s
Proper motion (μ) RA: -79.21 mas/yr
Dec.: 20.43 mas/yr
Parallax (π) 46.54 ± 0.55 mas
Distance 70.1 ± 0.8 ly
(21.5 ± 0.3 pc)
Absolute magnitude (MV) 5.608
Details
Luminosity (bolometric) 2.840[1] L
Surface gravity (log g) 4.32[1] cgs
Temperature 6,170[1] K
Metallicity [Fe/H] −0.26[1] dex
Rotation 56.2[1]
Age 0.30[1] Gyr
Other designations
BD+83° 297, FK5 911, HIP 51502, HR 4084, SAO 1714.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

HD 90089 is a suspected variable star in the constellation Camelopardalis.

An infrared excess has been detected around this star, most likely indicating the presence of a circumstellar disk at a radius of 145 AU. The temperature of this dust is 30 K.[1]

References[edit]

  1. ^ a b c d e f g h i j Eiroa, C. et al. (July 2013). "DUst around NEarby Stars. The survey observational results". Astronomy & Astrophysics 555: A11. arXiv:1305.0155. Bibcode:2013A&A...555A..11E. doi:10.1051/0004-6361/201321050.