Iota Lyrae
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Lyra |
| Right ascension | 19h 07m 18.13s[1] |
| Declination | +36° 06′ 00.6″[1] |
| Apparent magnitude (V) | 5.22[2] |
| Characteristics | |
| Spectral type | B6IV + ?[2] |
| Astrometry | |
| Radial velocity (Rv) | -26.00 ± 4.6[3] km/s |
| Proper motion (μ) | RA: -1.04 ± 0.16[1] mas/yr Dec.: -4.29 ± 0.20[1] mas/yr |
| Parallax (π) | 3.64 ± 0.20[1] mas |
| Distance | 900 ± 50 ly (270 ± 20 pc) |
| Other designations | |
Iota Lyrae is a binary star in the constellation Lyra. Its apparent magnitude is 5.22.[2] Located around 275 parsecs (900 ly) distant,[1] it is composed of a blue subgiant primary of spectral type B6IV and an unknown secondary separated by 0.08 arcseconds.[2]
References
- 1 2 3 4 5 6 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. - 1 2 3 4 Eggleton, P. P.; Tokovinin, A. A. (September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x.
- ↑ 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.
This article is issued from Wikipedia - version of the 4/19/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.