| Observation data EpochJ2000.0 EquinoxJ2000.0 (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 astar in theconstellationMicroscopium. It is a red giant star of spectral type M3e-M5.5 that is also aMira variable, with anapparent 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]
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