S Microscopii

Last updated
S Microscopii
SMicLightCurve.png
The visual band light curve of S Microscopii, from AAVSO data [1]
Observation data
Epoch J2000.0        Equinox J2000.0 (ICRS)
Constellation Microscopium
Right ascension 21h 26m 44.1040s [2]
Declination −29° 51′ 04.680″ [2]
Apparent magnitude  (V)7.8 - 14.8
Characteristics
Spectral type M3e-M5.5 [3]
Astrometry
Parallax (π)0.5137±0.1623  mas [4]
Distance approx. 6,000  ly
(approx. 1,900  pc)
Other designations
S Microscopii, CD−30° 18609, HD  204045
Database references
SIMBAD data

S Microscopii is a star in the constellation Microscopium. It is a red giant star of spectral type M3e-M5.5 that is also a Mira variable, with an apparent magnitude ranging between 7.4 and 14.8 over 210 days. [3] The Astronomical Society of Southern Africa in 2003 reported that observations of S Microscopii were very urgently needed as data on its light curve was incomplete. [5]

References

  1. ↑ "Download Data". aavso.org. AAVSO. Retrieved 1 October 2021.
  2. 1 2 "V* S Mic". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 20 March 2015.
  3. 1 2 Otero, Sebastian Alberto (12 April 2011). "S Microscopii". AAVSO Website. American Association of Variable Star Observers . Retrieved 20 March 2015.
  4. ↑ 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.
  5. ↑ Cooper, Tim (2003). "Presidential address: Amateur Observations - Successes and Opportunities". Monthly Notes of the Astronomical Society of Southern Africa. 62: 234–40. Bibcode:2003MNSSA..62..234C.


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