Theta Normae
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Norma |
| Right ascension | 16h 15m 15.31780s [1] |
| Declination | −47° 22′ 19.2677″ [1] |
| Apparent magnitude (V) | 5.12[1] |
| Characteristics | |
| Spectral type | B8V[1] |
| Astrometry | |
| Radial velocity (Rv) | −1.40 ± 4.2[1] km/s |
| Proper motion (μ) | RA: -34.39[1] mas/yr Dec.: -44.88[1] mas/yr |
| Parallax (π) | 8.46 ± 0.26[2] mas |
| Distance | 390 ± 10 ly (118 ± 4 pc) |
| Details | |
| Other designations | |
Theta Normae is a star in the constellation Norma. Its apparent magnitude is 5.12.[1] Located approximately 390 light-years distant, it is a blue-white main sequence star of spectral type B8V.[1] It shines with a luminosity approximately 184 times that of the Sun and has a surface temperature of 12,341 K.[3]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 SIMBAD, Theta Normae (accessed 31 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. Bibcode:2012MNRAS.427..343M.
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