AO Cassiopeiae
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| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Cassiopeia |
| Right ascension | 00h 17m 43.0617s |
| Declination | +51° 25′ 59.125″ |
| Apparent magnitude (V) | 6.102 |
| Characteristics | |
| Spectral type | O9III + O9III |
| Variable type | β Lyr |
| Astrometry | |
| Radial velocity (Rv) | -35.2 km/s |
| Proper motion (μ) | RA: -4.19 mas/yr Dec.: -1.62 mas/yr |
| Parallax (π) | 0.57 ± 0.69 mas |
| Distance | approx. 6,000 ly (approx. 2,000 pc) |
| Absolute magnitude (MV) | 5.955 |
| Details | |
| AO Cas A | |
| Mass | 20.30-57.75[1] M☉ |
| Radius | 11.5 / 7.5 R☉ |
| AO Cas B | |
| Mass | 14.8-31.73[1] M☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
AO Cassiopeiae or AO Cas, one of the biggest known double systems,[clarification needed] is also known as Pearce's Star.
[edit] References
- ^ a b Hohle, M. M.; Neuhäuser, R.; Schutz, B. F. (April 2010), "Masses and luminosities of O- and B-type stars and red supergiants", Astronomische Nachrichten 331 (4): 349, Bibcode 2010AN....331..349H, doi:10.1002/asna.200911355
[edit] External links
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