Astronomy:SS Andromedae

From HandWiki
SS Andromedae
Observation data
Equinox J2000.0]] (ICRS)
Constellation Andromeda
Right ascension  23h 11m 30.0687s[1]
Declination 52° 53′ 12.4927″[1]
Apparent magnitude (V) 10.0 to 11.4[2]
Characteristics
Spectral type M6II[2]
Astrometry
Proper motion (μ) RA: −7.636±0.188[1] mas/yr
Dec.: −2.567±0.190[1] mas/yr
Parallax (π)2.0487 ± 0.1263[1] mas
Distance1,590 ± 100 ly
(490 ± 30 pc)
Details
Other designations
SS And, BD+52° 3386, HD 218942, HIP 114507[3]
Database references
SIMBADdata

SS Andromedae is a variable star in the constellation of Andromeda. It is classified as a semiregular variable pulsating giant star, and varies from an apparent visual magnitude of 11.4 at minimum brightness to a magnitude of 10.0 at maximum brightness, with a period of approximately 152.5 days.[2]

References

  1. 1.0 1.1 1.2 1.3 1.4 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  2. 2.0 2.1 2.2 SS And, database entry, Combined General Catalog of Variable Stars (GCVS4.2, 2004 Ed.), N. N. Samus, O. V. Durlevich, et al., CDS ID II/250 Accessed on line 2009-06-30.
  3. V* SS And -- Semiregular Pulsating Variable Star, database entry, SIMBAD. Accessed on line 2009-06-30.