R Microscopii
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) |
|
|---|---|
| Constellation | Microscopium |
| Right ascension | 20h 40m 02.98684s .[1] |
| Declination | −28° 47′ 31.1983″ [1] |
| Apparent magnitude (V) | 8.3-13.8 |
| Characteristics | |
| Spectral type | M4e[2] |
| Astrometry | |
| Parallax (π) | 2.54 ± 2.08[3] mas |
| Distance | approx. 1,000 ly (approx. 400 pc) |
| Other designations | |
R Microscopii is a star in the constellation Microscopium. It is a red giant star of spectral type M4e that is also a Mira variable, with an apparent magnitude ranging between 8.3 and 13.8 over 138 days.[2] Located around 1000 light-years distant, it shines with a luminosity 444 times that of the Sun and has a surface temperature of 3141 K.[4] The Astronomical Society of Southern Africa in 2003 reported that observations of R Microscopii were urgently needed as data on its light curve was incomplete.[5]
References
- ↑ 1.0 1.1 SIMBAD, R Microscopii (accessed 20 March 2015)
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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