T Microscopii
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Microscopium |
| Right ascension | 20h 27m 55.18840s [1] |
| Declination | -28° 15' 39.8035"'[1] |
| Apparent magnitude (V) | 6.74 - 8.11 [2] |
| Characteristics | |
| Spectral type | M6-M8IIIe[2] |
| U−B color index | ? |
| B−V color index | ? |
| Variable type | Mira |
| Astrometry | |
| Proper motion (μ) | RA: - mas/yr Dec.: mas/yr |
| Parallax (π) | 4.75 ± 1.01[3] mas |
| Distance | approx. 700 ly (approx. 210 pc) |
| Details | |
| Mass | ? M☉ |
| Radius | ? R☉ |
| Metallicity | ? |
| Rotation | ? |
| Age | ? years |
| Other designations | |
T Microscopii is a semiregular variable star in the constellation Microscopium. It ranges from magnitude 6.74 to 8.11 over a period of 352 days.[2] Located around 700 light-years distant, it shines with a luminosity 7708 times that of the Sun and has a surface temperature of 2856 K.[4]
References
- 1 2 "V* U Microscopii -- Variable Star of Mira Ceti type". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 24 March 2015.
- 1 2 3 Otero, Sebastian Alberto (20 June 2011). "T Microscopii". AAVSO Website. American Association of Variable Star Observers. Retrieved 24 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.
- ↑ McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society 427 (1): 343–57. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x.
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