Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Andromeda |
Right ascension | 00h 23m 43.08963s[1] |
Declination | 29° 24′ 03.6265″[1] |
Apparent magnitude (V) | 9.14 to 10.09[2] |
Characteristics | |
Spectral type | A7III[2] |
Apparent magnitude (U) | 10.287±0.20[3][note 1] |
Apparent magnitude (B) | 10.097±0.006[3][note 1] |
Apparent magnitude (V) | 9.692±0.006[3][note 1] |
Apparent magnitude (Rc) | 9.433±0.020[3][note 1] |
Apparent magnitude (Ic) | 9.169±0.008[3][note 1] |
Apparent magnitude (J) | 8.757±0.020[3][note 1] |
Apparent magnitude (H) | 8.590±0.013[3][note 1] |
Apparent magnitude (Ks) | 8.511±0.009[3][note 1] |
Variable type | RRab Lyrae[3] |
Astrometry | |
Proper motion (μ) | RA: −6.638(29)[1] mas/yr Dec.: −18.906(26)[1] mas/yr |
Parallax (π) | 1.77 ± 0.26 mas[1] |
Distance | approx. 1,800 ly (approx. 560 pc) |
Absolute magnitude (MV) | 0.710[4] |
Details[4] | |
Mass | 0.26±0.04 M☉ |
Radius | 4.51–5.05 R☉ |
Luminosity | 39.8±4 L☉ |
Temperature | 6644 K |
Other designations | |
Database references | |
SIMBAD | data |
SW Andromedae is a variable star in the constellation of Andromeda. It is classified as an RR Lyrae star, and varies from an apparent magnitude of 10.09 at minimum brightness to a magnitude of 9.14 at maximum brightness with a period of 0.44226 days.[2]
Gaia EDR3
was invoked but never defined (see the help page).Monson2017
was invoked but never defined (see the help page).Barcza2014
was invoked but never defined (see the help page).Simbad
was invoked but never defined (see the help page).
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