Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Eridanus |
Right ascension | 04h 11m 51.93956s[2] |
Declination | −06° 50′ 15.2864″[2] |
Apparent magnitude (V) | 4.04[3] |
Characteristics | |
Spectral type | F0 III[4] |
U−B color index | +0.10[3] |
B−V color index | +0.32[3] |
Variable type | δ Scuti[5] |
Astrometry | |
Proper motion (μ) | RA: +10.76[2] mas/yr Dec.: +81.92[2] mas/yr |
Parallax (π) | 26.80 ± 0.32 mas[2] |
Distance | 122 ± 1 ly (37.3 ± 0.4 pc) |
Absolute magnitude (MV) | +1.18[6] |
Details | |
Mass | 1.95[5] M☉ |
Radius | 3.7±0.1[5] R☉ |
Luminosity | 27[5] L☉ |
Surface gravity (log g) | 3.39[4] cgs |
Temperature | 6,963[4] K |
Metallicity [Fe/H] | −0.01[4] dex |
Rotational velocity (v sin i) | 108.1[7] km/s |
Other designations | |
Database references | |
SIMBAD | data |
Omicron1 Eridani (ο1 Eridani, abbreviated Omicron1 Eri, ο1 Eri), also named Beid /ˈbaɪd/,[9][10] is a variable star in the constellation of Eridanus. With an average apparent visual magnitude of 4.04,[3] it is visible to the naked eye on a clear, dark night. Based upon parallax measurements, it lies approximately 122 light-years from the Sun.
MAST
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was invoked but never defined (see the help page).IAU-LSN
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