RS Persei facts for kids
 RS Persei is the red star closest to the centre of NGC 884, the right hand cluster (north is down). |
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| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Perseus |
| Right ascension | 2h 22m 24.288s |
| Declination | +57° 0.6′ 34.08″ |
| Apparent magnitude (V) | 7.82-10.0 |
| Characteristics | |
| Spectral type | M4Iab |
| Variable type | SRc |
| Astrometry | |
| Radial velocity (Rv) | −38.0±2 km/s |
| Proper motion (μ) | RA: −0.371±0.137 mas/yr Dec.: −0.931±0.165 mas/yr |
| Parallax (π) | 0.6437 ± 0.0822 mas |
| Distance | 2,345±55 pc |
| Absolute magnitude (MV) | −6.18 |
| Details | |
| Mass | 12-15 M☉ |
| Radius | 770±30 R☉ |
| Luminosity | 77,600+9,500 −8,400 L☉ |
| Surface gravity (log g) | −0.2±0.05 cgs |
| Temperature | 3,470±90 K |
| Other designations | |
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RS Per, HD 14488, BD +56°583, 2MASS J02222428+5706340, AAVSO 0215+56A
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| Database references | |
| SIMBAD | data |
RS Persei is a red supergiant variable star located in the Double Cluster in Perseus.
See also
In Spanish: RS Persei para niños
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RS Persei Facts for Kids. Kiddle Encyclopedia.