Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Perseus |
Right ascension | 03h 05m 32.41223s [1] |
Declination | 56° 42′ 20.5858″ [1] |
Apparent magnitude (V) | 4.77 [2] |
Characteristics | |
Spectral type | G9.5III [3] |
U−B color index | +0.85 [4] |
B−V color index | +1.02 [4] |
Astrometry | |
Radial velocity (Rv) | -46.37 [5] km/s |
Proper motion (μ) |
RA: -12.72
[1]
mas/
yr Dec.: +70.04 [1] mas/ yr |
Parallax (π) | 15.45 ± 0.27 mas [1] |
Distance | 211 ± 4
ly (65 ± 1 pc) |
Absolute magnitude (MV) | 0.72 [2] |
Details | |
Mass | 1.53 [6] M☉ |
Radius | 11 [6] R☉ |
Luminosity | 63.48 [2] L☉ |
Surface gravity (log g) | 2.54 [6] cgs |
Temperature | 4,900 [7] K |
Metallicity [Fe/H] | -0.08 [2] dex |
Rotational velocity (v sin i) | < 1.0 [8] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 18970 is a class G9.5III [3] (yellow giant) star in the constellation Perseus. Its apparent magnitude is 4.77 [2] and it is approximately 211 light years away based on parallax. [1]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Perseus |
Right ascension | 03h 05m 32.41223s [1] |
Declination | 56° 42′ 20.5858″ [1] |
Apparent magnitude (V) | 4.77 [2] |
Characteristics | |
Spectral type | G9.5III [3] |
U−B color index | +0.85 [4] |
B−V color index | +1.02 [4] |
Astrometry | |
Radial velocity (Rv) | -46.37 [5] km/s |
Proper motion (μ) |
RA: -12.72
[1]
mas/
yr Dec.: +70.04 [1] mas/ yr |
Parallax (π) | 15.45 ± 0.27 mas [1] |
Distance | 211 ± 4
ly (65 ± 1 pc) |
Absolute magnitude (MV) | 0.72 [2] |
Details | |
Mass | 1.53 [6] M☉ |
Radius | 11 [6] R☉ |
Luminosity | 63.48 [2] L☉ |
Surface gravity (log g) | 2.54 [6] cgs |
Temperature | 4,900 [7] K |
Metallicity [Fe/H] | -0.08 [2] dex |
Rotational velocity (v sin i) | < 1.0 [8] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 18970 is a class G9.5III [3] (yellow giant) star in the constellation Perseus. Its apparent magnitude is 4.77 [2] and it is approximately 211 light years away based on parallax. [1]