S Microscopii
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Microscopium |
| Right ascension | 21h 26m 44.1040s .[1] |
| Declination | −29° 51′ 04.680″ [1] |
| Apparent magnitude (V) | 7.8 - 14.8 |
| Characteristics | |
| Spectral type | M3e-M5.5[2] |
| Astrometry | |
| Parallax (π) | 2.54 ± 2.08[3] mas |
| Distance | approx. 1,000 ly (approx. 400 pc) |
| Other designations | |
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.[2] 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.[4]
References
- 1 2 SIMBAD, AV Microscopii (accessed 20 March 2015)
- 1 2 Otero, Sebastian Alberto (12 April 2011). "S Microscopii". AAVSO Website. American Association of Variable Star Observers. Retrieved 20 March 2015.
- ↑ van Leeuwen, F. (2007). "Validation of the New Hipparcos Reduction". Astronomy and Astrophysics. 474 (2): 653–64. arXiv:0708.1752
. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. - ↑ 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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