Nu Coronae Borealis
| Astrometry | |
|---|---|
| Nu1 Coronae Borealis | |
| Radial velocity (Rv) | -13.17 km/s |
| Proper motion (μ) | RA: 4.97 mas/yr Dec.: -37.92 mas/yr |
| Parallax (π) | 5.09 ± 0.22[1] mas |
| Distance | 640 ± 30 ly (196 ± 8 pc) |
| Nu2 Coronae Borealis | |
| Radial velocity (Rv) | -41.08 km/s |
| Proper motion (μ) | RA: -5.42 mas/yr Dec.: 50.56 mas/yr |
| Parallax (π) | 5.49 ± 0.24[1] mas |
| Distance | 590 ± 30 ly (182 ± 8 pc) |
The Bayer designation Nu Coronae Borealis is an optical double system of two stars, Nu1 Coronae Borealis, a red giant of spectral type M2III, and Nu2 Coronae Borealis, an orange giant of spectral type K5III, in the constellation Corona Borealis.
References
- 1 2 van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752
, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.
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