Mu Ophiuchi
  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ophiuchus |
| Right ascension | 17h 37m 50.71309s[1] |
| Declination | −8° 07′ 07.5749″[1] |
| Apparent magnitude (V) | 4.62[2] |
| Characteristics | |
| Spectral type | B8II-IIIp:Mn[3] |
| U−B color index | -0.20[2] |
| B−V color index | +0.11[2] |
| Astrometry | |
| Radial velocity (Rv) | -18.50[4] km/s |
| Proper motion (μ) | RA: -11.31[1] mas/yr Dec.: -20.47[1] mas/yr |
| Parallax (π) | 4.32 ± 0.20 mas[1] |
| Distance | 750 ± 30 ly (230 ± 10 pc) |
| Absolute magnitude (MV) | -2.24[5] |
| Details | |
| Luminosity | 659[5] L☉ |
| Temperature | 12,790[6] K |
| Metallicity [Fe/H] | 0.00[7] dex |
| Rotational velocity (v sin i) | 95[8] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
Mu Ophiuchi (μ Oph) is a class B8II-III[3] (blue giant) star in the constellation Ophiuchus. Its apparent magnitude is 4.62[2] and it is approximately 760 light years away based on parallax.[1]
References
- ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
- ^ a b c d Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
- ^ a b Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.
- ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
- ^ a b Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. Vizier catalog entry
- ^ Zorec, J.; Cidale, L.; Arias, M. L.; Frémat, Y.; Muratore, M. F.; Torres, A. F.; Martayan, C. (2009). "Fundamental parameters of B supergiants from the BCD system". Astronomy and Astrophysics. 501: 297. arXiv:0903.5134. Bibcode:2009A&A...501..297Z. doi:10.1051/0004-6361/200811147.
- ^ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031. Vizier catalog entry
- ^ Abt, Helmut A.; Levato, Hugo; Grosso, Monica (2002). "Rotational Velocities of B Stars". The Astrophysical Journal. 573: 359. Bibcode:2002ApJ...573..359A. doi:10.1086/340590.
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