| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | 16h 50m 36.07960s [1] |
| Declination | −50° 02′ 41.8040″ [1] |
| Apparent magnitude (V) | 6.45 [2] (7.17 + 7.33) [3] |
| Characteristics | |
| Spectral type | A5III + F7III [4] |
| U−B color index | +0.07 [2] |
| B−V color index | +0.33 [2] |
| Astrometry | |
| Radial velocity (Rv) | 24.6±1.6 [5] km/s |
| Proper motion (μ) |
RA: -7.97
[1]
mas/
yr Dec.: -2.84 [1] mas/ yr |
| Parallax (π) | 6.19 ± 1.22 mas [1] |
| Distance | approx. 500
ly (approx. 160 pc) |
| Details | |
| Luminosity | 51.5 [6] L☉ |
| Temperature | 7,000 [6] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 151566 is double star in the southern constellation of Ara. As of 1991, the pair had an angular separation of 3.10 ″ along a position angle of 42°. [3]
- ^ a b c d e 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, S2CID 18759600.
- ^ a b c Hurly, P. R. (1975), "Combined-light UBV Photometry of 103 Bright Southern Visual Doubles", Monthly Notes of the Astronomical Society of Southern Africa, 34: 7, Bibcode: 1975MNSSA..34....7H.
- ^ a b Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466, Bibcode: 2001AJ....122.3466M, doi: 10.1086/323920, retrieved 2015-07-22.
- ^ Hoffleit, D.; Warren Jr, W. H. (1991), Bright Star Catalogue (5th Revised (Preliminary Version) ed.), Astronomical Data Center, NSSDC/ADC, retrieved 2015-08-17.
- ^ 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, arXiv: 1606.08053, Bibcode: 2006AstL...32..759G, doi: 10.1134/S1063773706110065, S2CID 119231169.
- ^ a b 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, S2CID 118665352.
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 | This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it. |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | 16h 50m 36.07960s [1] |
| Declination | −50° 02′ 41.8040″ [1] |
| Apparent magnitude (V) | 6.45 [2] (7.17 + 7.33) [3] |
| Characteristics | |
| Spectral type | A5III + F7III [4] |
| U−B color index | +0.07 [2] |
| B−V color index | +0.33 [2] |
| Astrometry | |
| Radial velocity (Rv) | 24.6±1.6 [5] km/s |
| Proper motion (μ) |
RA: -7.97
[1]
mas/
yr Dec.: -2.84 [1] mas/ yr |
| Parallax (π) | 6.19 ± 1.22 mas [1] |
| Distance | approx. 500
ly (approx. 160 pc) |
| Details | |
| Luminosity | 51.5 [6] L☉ |
| Temperature | 7,000 [6] K |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 151566 is double star in the southern constellation of Ara. As of 1991, the pair had an angular separation of 3.10 ″ along a position angle of 42°. [3]
- ^ a b c d e 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, S2CID 18759600.
- ^ a b c Hurly, P. R. (1975), "Combined-light UBV Photometry of 103 Bright Southern Visual Doubles", Monthly Notes of the Astronomical Society of Southern Africa, 34: 7, Bibcode: 1975MNSSA..34....7H.
- ^ a b Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466, Bibcode: 2001AJ....122.3466M, doi: 10.1086/323920, retrieved 2015-07-22.
- ^ Hoffleit, D.; Warren Jr, W. H. (1991), Bright Star Catalogue (5th Revised (Preliminary Version) ed.), Astronomical Data Center, NSSDC/ADC, retrieved 2015-08-17.
- ^ 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, arXiv: 1606.08053, Bibcode: 2006AstL...32..759G, doi: 10.1134/S1063773706110065, S2CID 119231169.
- ^ a b 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, S2CID 118665352.
| Stars |
| ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||
|
Star clusters |
| ||||||||||
| Nebulae |
| ||||||||||
| Galaxies |
| ||||||||||
|
| This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it. |