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 | |
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
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