![]() Caph is found at the top right of the "W" |
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Observation data Epoch J2000 Equinox J2000 |
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Constellation | Cassiopeia |
Right ascension | 00 |
Declination | +59° 08′ 59.2120″ |
Apparent magnitude (V) | +2.28 (2.25–2.31) |
Characteristics | |
Spectral type | F2 III-IV |
U−B color index | 0.11 |
B−V color index | 0.34 |
Variable type | Delta Scuti |
Astrometry | |
Radial velocity (Rv) | 11.3 km/s |
Proper motion (μ) | RA: 523.50 mas/yr |
Parallax (π) | 59.58 ± 0.38mas |
Distance | 54.7 ± 0.3 ly (16.8 ± 0.1 pc) |
Absolute magnitude (MV) | +1.16 |
Details | |
Mass | 1.91 ± 0.02M☉ |
Radius | 3.43–3.69R☉ |
Luminosity | 27.3L☉ |
Surface gravity (log g) | 3.40 |
Temperature | 7,079K |
Metallicity [Fe/H] | 0.03dex |
Rotational velocity (v sin i) | 71.0 km/s |
Age | 1.09–1.18Gyr |
Other designations | |
Caph, Chaph, Kaff, Al Sanam al Nakah,
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