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V385 Andromedae

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V385 Andromedae
Location of V385 Andromedae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 23h 24m 08.868s[1]
Declination +41° 36′ 46.35″[1]
Apparent magnitude (V) 6.413[2]
Characteristics
Evolutionary stage Red giant
Spectral type M0[3]
B−V color index +1.66[4]
Variable type LB[3][2]
Astrometry
Proper motion (μ) RA: -12.02 ± 0.31[1] mas/yr
Dec.: 2.46 ± 0.29[1] mas/yr
Parallax (π)2.7775 ± 0.1334 mas[5]
Distance1,170 ± 60 ly
(360 ± 20 pc)
Details
Radius113[5] R☉
Luminosity1,843[5] L☉
Temperature3,563[5] K
Other designations
HD 220524, BD+40 5065, HIP 115530, SAO 52978
Database references
SIMBADdata

V385 Andromedae is a variable star in the constellation Andromeda, about 360 parsecs (1,200 ly) away. It is a red giant over a hundred times larger than the sun. It has an apparent magnitude around 6.4, just about visible to the naked eye in ideal conditions.

V385 Andromedae was identified as a long-period variable in 1999 from analysis of Hipparcos photometry.[6] It was classified as a slow irregular variable,[3] but analysis of its light curve identified a possible 36 day period.[2] It varies by about 0.1 magnitudes.[2][3]

References

  1. ^ a b c d van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.Vizier catalog entry
  2. ^ a b c d Burggraaff, O.; Talens, G. J. J.; Spronck, J.; Lesage, A. -L.; Stuik, R.; Otten, G. P. P. L.; Van Eylen, V.; Pollacco, D.; Snellen, I. A. G. (2018). "Studying bright variable stars with the Multi-site All-Sky CAmeRA (MASCARA)". Astronomy and Astrophysics. 617: A32. arXiv:1806.02247. Bibcode:2018A&A...617A..32B. doi:10.1051/0004-6361/201833142. S2CID 84836583.
  3. ^ a b c d Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1: B/gcvs. Bibcode:2009yCat....102025S.
  4. ^ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27. Bibcode:2000A&A...355L..27H.
  5. ^ a b c d Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  6. ^ Kazarovets, E. V.; Samus, N. N.; Durlevich, O. V.; Frolov, M. S.; Antipin, S. V.; Kireeva, N. N.; Pastukhova, E. N. (1999). "The 74th Special Name-list of Variable Stars". Information Bulletin on Variable Stars. 4659 (4659): 1. Bibcode:1999IBVS.4659....1K.


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