Delta Geminorum
Star in the constellation Gemini / From Wikipedia, the free encyclopedia
Delta Geminorum (δ Geminorum, abbreviated Delta Gem, δ Gem), formally named Wasat /ˈweɪsət/,[9][10] is a triple star system in the constellation of Gemini.
Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Gemini |
Right ascension | 07h 20m 07.37978s[1] |
Declination | +21° 58′ 56.3377″[1] |
Apparent magnitude (V) | +3.53[2] |
Characteristics | |
Spectral type | F0 IV[3] |
U−B color index | +0.04[2] |
B−V color index | +0.34[2] |
Astrometry | |
Radial velocity (Rv) | +4.1[4] km/s |
Proper motion (μ) | RA: –15.13[1] mas/yr Dec.: –9.79[1] mas/yr |
Parallax (π) | 53.94 ± 0.66 mas[1] |
Distance | 60.5 ± 0.7 ly (18.5 ± 0.2 pc) |
Absolute magnitude (MV) | 1.95[5] |
Details | |
Mass | 1.57[6] M☉ |
Temperature | 6,900[7] K |
Metallicity [Fe/H] | –0.26[7] dex |
Rotational velocity (v sin i) | 129.7[8] km/s |
Age | 1.6[7] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
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