Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Camelopardalis |
Right ascension | 12h 49m 13.7347s[1] |
Declination | +83° 24′ 46.432″[1] |
Apparent magnitude (V) | 5.28[2] |
Characteristics | |
Spectral type | A0 IIsp[3] |
U−B color index | −0.06[2] |
B−V color index | −0.03[2] |
Astrometry | |
Radial velocity (Rv) | +2.3[4] km/s |
Proper motion (μ) | RA: −31.517(152) mas/yr[1] Dec.: 20.774(158) mas/yr[1] |
Parallax (π) | 7.7658 ± 0.1164 mas[1] |
Distance | 420 ± 6 ly (129 ± 2 pc) |
Details | |
Luminosity | 174[5] L☉ |
Surface gravity (log g) | 2.88±0.13[6] cgs |
Temperature | 9,443±345[6] K |
Metallicity [Fe/H] | −0.39±0.22[6] dex |
Rotational velocity (v sin i) | 275[7] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 112028 is an evolved star in the northern constellation of Camelopardalis. It has spectral peculiarities that have been interpreted as a shell, and also relatively weak magnesium and silicon lines. Its spectral class has been variously assigned between B9 and A2, and its luminosity class between a subgiant and bright giant.[8]
At an angular separation of 21.47″ is the slightly fainter spectroscopic binary HD 112014, consisting of a pair of A-type main sequence stars. HD 112028 and HD 112014 together are known as the binary star Struve 1694.[9]
Gaia DR3
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