Astronomy:RY Andromedae
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| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 20m 37.3s[1] |
| Declination | 39° 37′ 11″[1] |
| Apparent magnitude (V) | 10.0 to 15.3[2] |
| Characteristics | |
| Spectral type | M8[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 |
| Distance | 1,590 ± 100 ly (490 ± 30 pc) |
| Details | |
| Other designations | |
| Database references | |
| SIMBAD | data |
RY 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 15.3 at minimum brightness to a magnitude of 10.0 at maximum brightness, with a period of approximately 391.2 days.[2]
References
- ↑ 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. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 2.0 2.1 2.2 RY 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.
- ↑ "RY Andromedae". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=RY+Andromedae.
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