Nu2 Columbae
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Columba |
| Right ascension | 05h 37m 44.6178s |
| Declination | −28° 41′ 22.886″ |
| Apparent magnitude (V) | 5.31 |
| Absolute magnitude (V) | 2.21[1] |
| Distance | 138.56 ly (42.48 pc) |
| Spectral type | F4 V |
| Other designations | |
Nu2 Columbae is a yellow-white dwarf star in the constellation Columba.
This star has 1.62 times the mass of the Sun, with a projected rotational velocity of 31.0 km s−1.[1] X-ray emission has been detected from this star, with an estimated luminosity of 1.6 × 1029 erg s−1.[2]
References
- ↑ 1.0 1.1 Pizzolato, N.; Maggio, A.; Sciortino, S. (September 2000), "Evolution of X-ray activity of 1-3 Msun late-type stars in early post-main-sequence phases", Astronomy and Astrophysics 361: 614–628, Bibcode:2000A&A...361..614P
- ↑ Micela, G.; Favata, F.; Sciortino, S. (October 1997), "HIPPARCOS distances of X-ray selected stars: implications on their nature as stellar population", Astronomy and Astrophysics 326: 221–227, Bibcode:1997A&A...326..221M
External links
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