HD 165516
 
| |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 18h 07m 11.35s[1] |
| Declination | −21° 26′ 38.2″[1] |
| Apparent magnitude (V) | +6.33[2] |
| Characteristics | |
| Spectral type | B1/2Ib[3] |
| U−B color index | −0.72[2] |
| B−V color index | +0.12[2] |
| Astrometry | |
| Radial velocity (Rv) | -8.50[4] km/s |
| Proper motion (μ) | RA: −0.23[1] mas/yr Dec.: −1.15[1] mas/yr |
| Parallax (π) | 1.39 ± 0.49[1] mas |
| Distance | approx. 2,300 ly (approx. 700 pc) |
| Absolute magnitude (MV) | −5.8[5] |
| Details | |
| Mass | 10.1[6] M☉ |
| Radius | 26[7] R☉ |
| Temperature | 25,000[8] K |
| Rotational velocity (v sin i) | 55[9] km/s |
| Age | 22.5[6] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 165516 is a blue supergiant star in the constellation Sagittarius. It is part of the Sagittarius OB1 association.
References
- 1 2 3 4 5 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. - 1 2 3 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.
- ↑ Houk, N.; Smith-Moore, M. (1988). "Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars. Volume 4, Declinations -26°.0 to -12°.0". Michigan Catalogue of Two-dimensional Spectral Types for the HD Stars. Volume 4. Bibcode:1988MSS...C04....0H.
- ↑ 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.
- ↑ Humphreys, R. M. (1978). "Studies of luminous stars in nearby galaxies. I. Supergiants and O stars in the Milky Way". The Astrophysical Journal Supplement Series. 38: 309. Bibcode:1978ApJS...38..309H. doi:10.1086/190559.
- 1 2 Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410: 190. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x.
- ↑ Wesselink, A. J.; Paranya, K.; Devorkin, K. (1972). "Catalogue of stellar dimensions". Astronomy and Astrophysics Supplement. 7: 257. Bibcode:1972A&AS....7..257W.
- ↑ Gulati, R. K.; Malagnini, M. L.; Morossi, C. (1989). "Empirical temperature calibrations for early-type stars". Astronomy and Astrophysics Supplement Series. 80: 73. Bibcode:1989A&AS...80...73G.
- ↑ 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.
External links
Image of VdB113 HD 165516 is the lower of the two bright white stars.
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