SS Cephei
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SS Cephei, as seen during the Sloan Digital Sky Survey | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cepheus[1] |
| Right ascension | 03h 49m 30.0153s[2] |
| Declination | +80° 19′ 20.902″[2] |
| Apparent magnitude (V) | 6.9 - 7.9[3] |
| Characteristics | |
| Evolutionary stage | AGB[4] |
| Spectral type | M5III[5] |
| Variable type | SRb[3] |
| Astrometry | |
| Radial velocity (Rv) | −46.87±0.09[6] km/s |
| Proper motion (μ) | RA: −4.911[2] mas/yr Dec.: 12.062[2] mas/yr |
| Parallax (π) | 3.9187±0.1886 mas[2] |
| Distance | 830 ± 40 ly (260 ± 10 pc) |
| Absolute magnitude (MV) | +0.13[5] |
| Details | |
| Mass | 3.7[7] M☉ |
| Radius | 239[8] R☉ |
| Luminosity | 5,021[8] L☉ |
| Surface gravity (log g) | 2.33[7] cgs |
| Temperature | 3,830[7] K |
| Metallicity [Fe/H] | −0.32[7] dex |
| Other designations | |
| BD+79°110, HD 22689, HIP 17881, SAO 594[9] | |
| Database references | |
| SIMBAD | data |
SS Cephei is a semiregular variable star in the constellation Cepheus. It is of spectral type M5III, and has an estimated temperature of about 3,700 K. The star is about 830 light-years (260 parsecs) from Earth. The brightness of SS Cephei varies between magnitude 6.9 and 7.9.
See also
[edit | edit source]References
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- ^ a b c d e Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). Gaia DR3 record for this source at VizieR.
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
