Astronomy:RR Andromedae

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RR Andromedae
Observation data
Epoch J2000.0   Equinox (celestial coordinates)
Constellation Andromeda
Right ascension  00h 51m 23.29s[1]
Declination 34° 22′ 36.3″[1]
Apparent magnitude (V) 8.4 to 15.6[2]
Spectral typeS6.5,2e[2]
Other designations
HD 4895, BD+33 116a [1]
Database references
SIMBADdata

RR Andromedae is a variable star in the constellation of Andromeda. It is classified as a Mira variable, and varies from an apparent visual magnitude of 15.6 at minimum brightness to a magnitude of 8.4 at maximum brightness, with a period of approximately 330.6 days.[2]

References

  1. ↑ 1.0 1.1 1.2 V* RR And -- Variable Star of Mira Cet type, database entry, SIMBAD. Accessed on line 2009-06-22.
  2. ↑ 2.0 2.1 2.2 RR 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 2009-06-22.





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