Eta Pavonis
 
| |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Pavo |
| Right ascension | 17h 45m 43.98605s[1] |
| Declination | −64° 43′ 25.9394″[1] |
| Apparent magnitude (V) | 3.61[2] |
| Characteristics | |
| Spectral type | K2II[3] |
| U−B color index | +1.17[4] |
| B−V color index | +1.19[4] |
| Astrometry | |
| Radial velocity (Rv) | -7.60[5] km/s |
| Proper motion (μ) | RA: -11.96[1] mas/yr Dec.: -56.57[1] mas/yr |
| Parallax (π) | 9.26 ± 0.18[1] mas |
| Distance | 352 ± 7 ly (108 ± 2 pc) |
| Absolute magnitude (MV) | -1.56[2] |
| Details | |
| Luminosity | 603[2] L☉ |
| Surface gravity (log g) | 1.97[6] cgs |
| Temperature | 4,700[7] K |
| Metallicity [Fe/H] | +0.15[6] dex |
| Rotational velocity (v sin i) | < 1.5[8] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
Eta Pavonis (η Pav) is a star in the constellation Pavo. Its apparent magnitude is 3.61.[2] Located around 108 parsecs (350 ly) distant,[1] it is a bright giant of spectral type K2II,[3] between the classifications of giant and supergiant.
References
- 1 2 3 4 5 6 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 - 1 2 3 4 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
- 1 2 Houk, N.; Cowley, A. P. (1975). "University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0". University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0. Department of Astronomy, University of Michigan: 19 + 452. Bibcode:1975mcts.book.....H.
- 1 2 Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers. 42: 443. Bibcode:2014JAVSO..42..443M.Vizier catalog entry
- ↑ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
- 1 2 Luck, R. Earle (2014). "Parameters and Abundances in Luminous Stars". The Astronomical Journal. 147 (6): 137. Bibcode:2014AJ....147..137L. doi:10.1088/0004-6256/147/6/137.
- ↑ 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: 343. doi:10.1111/j.1365-2966.2012.21873.x. Vizier catalog entry
- ↑ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014). "A catalog of rotational and radial velocities for evolved stars". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. Vizier catalog entry
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