U Microscopii
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Microscopium |
| Right ascension | 20h 29m 15.77460s[2] |
| Declination | −40° 25′ 01.3084″[2] |
| Apparent magnitude (V) | 7.0 - 14.4 [3] |
| Characteristics | |
| Spectral type | M5e-M7e[4] |
| Variable type | Mira[3] |
| Astrometry | |
| Radial velocity (Rv) | −54.00[5] km/s |
| Proper motion (μ) | RA: −13.68[2] mas/yr Dec.: −24.38[2] mas/yr |
| Parallax (π) | 1.5546±0.1456 mas[6] |
| Distance | 2,100 ± 200 ly (640 ± 60 pc) |
| Details | |
| Luminosity | 7,900[7] L☉ |
| Temperature | 2,995[8] K |
| Other designations | |
| U Microscopii, HIP 101063, HD 194814, CD−40°13888 | |
| Database references | |
| SIMBAD | data |
U Microscopii is a Mira variable star in the constellation Microscopium. It ranges from magnitude 7 to 14.4 over a period of 334 days.[4] The Astronomical Society of Southern Africa in 2003 reported that observations of U Microscopii were very urgently needed as data on its light curve was incomplete.[9]
References
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- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value). Gaia DR2 record for this source at VizieR.
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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