HD 135438
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| Right ascension | 15h 14m 06.04370s[1] |
| Declination | +31° 47′ 16.2399″[1] |
| Apparent magnitude (V) | 6.0992±0.0007[2] |
| Characteristics | |
| Spectral type | K5[3] |
| B−V color index | 1.52[3] |
| Astrometry | |
| Radial velocity (Rv) | +4[4] km/s |
| Proper motion (μ) | RA: +42.29±0.20[1] mas/yr Dec.: −30.32±0.27[1] mas/yr |
| Parallax (π) | 4.92 ± 0.37[1] mas |
| Distance | 660 ± 50 ly (200 ± 20 pc) |
| Details | |
| Luminosity | 407[5] L☉ |
| Temperature | 3,975[5] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 135438 is a K-type giant star[3] in the northern constellation of Boötes. It has a magnitude 9.36 companion at an angular separation of 118.2″ along a position angle of 158° (as of 2012).[6]
References
- 1 2 3 4 5 van Leeuwen, F. (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. - ↑ Famaey, B.; et al. (2005), "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters", Astronomy and Astrophysics, 430: 165–186, arXiv:astro-ph/0409579, Bibcode:2005A&A...430..165F, doi:10.1051/0004-6361:20041272.
- 1 2 3 Percy, John R. (December 1993), "The photometric variability of K giants", Publications of the Astronomical Society of the Pacific, 105 (694): 1422–1426, Bibcode:1993PASP..105.1422P, doi:10.1086/133324.
- ↑ Gontcharov, G. A. (November 2006), "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system", Astronomy Letters, 32 (11): 759–771, Bibcode:2006AstL...32..759G, doi:10.1134/S1063773706110065.
- 1 2 McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x.
- ↑ Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122: 3466–3471, Bibcode:2001AJ....122.3466M, doi:10.1086/323920, retrieved 2015-07-22.
External links
This article is issued from Wikipedia - version of the 4/20/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.