Upsilon¹ Cassiopeiae
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- For other star systems with this Bayer designation, see Upsilon Cassiopeiae.
| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Cassiopeia |
| Right ascension | 00h55m00.1s |
| Declination | +58°58′22″ |
| Apparent magnitude (V) | +4.83 |
| Characteristics | |
| Spectral type | K2III |
| U-B color index | +1.26 |
| B-V color index | +1.21 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | −23 km/s |
| Proper motion (μ) | RA: −32.24 mas/yr Dec.: −40.69 mas/yr |
| Parallax (π) | 8.02 ± 0.65 mas |
| Distance | 407 ly (125 pc) |
| Absolute magnitude (MV) | −0.64 |
| Other designations | |
Upsilon1 Cassiopeiae (υ1 Cas / υ1 Cassiopeiae) is a triple star system in the constellation Cassiopeia. υ1 Cassiopeiae is an orange K-type giant with an apparent magnitude of +4.83. It is approximately 407 light years from Earth.
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