| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| Right ascension | 14h 29m 49.67035s [1] |
| Declination | +31° 47′ 28.2842″ [1] |
| Apparent magnitude (V) | 6.05 [2] |
| Characteristics | |
| Spectral type | A0Vs [3] |
| U−B color index | −0.06 [2] |
| B−V color index | −0.03 [2] |
| Astrometry | |
| Radial velocity (Rv) | −9.3 [4] km/s |
| Proper motion (μ) |
RA: −20.37
[1]
mas/
yr Dec.: +7.73 [1] mas/ yr |
| Parallax (π) | 9.08 ± 0.40 mas [1] |
| Distance | 360 ± 20
ly (110 ± 5 pc) |
| Details | |
| Luminosity | 36 [5] L☉ |
| Temperature | 7,696 [6] K |
| Rotational velocity (v sin i) | 14 [7] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 127304 is a double star in the northern constellation of Boötes. The brighter component is a sixth magnitude A-type main sequence star with a stellar classification of A0Vs [3] It has a faint magnitude 10.62 companion at an angular separation of 25.6 ″ along a position angle of 256° (as of 2013). [8]
References
- ^ 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- ^ a b c Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode: 1986EgUBV........0M.
- ^ a b Cowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal, 74: 375–406, Bibcode: 1969AJ.....74..375C, doi: 10.1086/110819.
- ^ Wilson, R. E. (1953), "General Catalogue of Stellar Radial Velocities", Carnegie Institute Washington D.C. Publication, Carnegie Institute of Washington D.C., Bibcode: 1953GCRV..C......0W.
- ^ 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.
- ^ Muñoz Bermejo, J.; et al. (May 2013), "A PCA approach to stellar effective temperatures", Astronomy and Astrophysics, 453: A95, arXiv: 1303.7218, Bibcode: 2013A&A...553A..95M, doi: 10.1051/0004-6361/201220961, S2CID 67752733.
- ^ Royer, F.; et al. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics, 463 (2): 671–682, arXiv: astro-ph/0610785, Bibcode: 2007A&A...463..671R, doi: 10.1051/0004-6361:20065224, S2CID 18475298.
- ^ 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
External links
 | This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it. |
 | This main-sequence-star-related article is a stub. You can help Wikipedia by expanding it. |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| Right ascension | 14h 29m 49.67035s [1] |
| Declination | +31° 47′ 28.2842″ [1] |
| Apparent magnitude (V) | 6.05 [2] |
| Characteristics | |
| Spectral type | A0Vs [3] |
| U−B color index | −0.06 [2] |
| B−V color index | −0.03 [2] |
| Astrometry | |
| Radial velocity (Rv) | −9.3 [4] km/s |
| Proper motion (μ) |
RA: −20.37
[1]
mas/
yr Dec.: +7.73 [1] mas/ yr |
| Parallax (π) | 9.08 ± 0.40 mas [1] |
| Distance | 360 ± 20
ly (110 ± 5 pc) |
| Details | |
| Luminosity | 36 [5] L☉ |
| Temperature | 7,696 [6] K |
| Rotational velocity (v sin i) | 14 [7] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 127304 is a double star in the northern constellation of Boötes. The brighter component is a sixth magnitude A-type main sequence star with a stellar classification of A0Vs [3] It has a faint magnitude 10.62 companion at an angular separation of 25.6 ″ along a position angle of 256° (as of 2013). [8]
References
- ^ 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 Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data. SIMBAD, Bibcode: 1986EgUBV........0M.
- ^ a b Cowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal, 74: 375–406, Bibcode: 1969AJ.....74..375C, doi: 10.1086/110819.
- ^ Wilson, R. E. (1953), "General Catalogue of Stellar Radial Velocities", Carnegie Institute Washington D.C. Publication, Carnegie Institute of Washington D.C., Bibcode: 1953GCRV..C......0W.
- ^ 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.
- ^ Muñoz Bermejo, J.; et al. (May 2013), "A PCA approach to stellar effective temperatures", Astronomy and Astrophysics, 453: A95, arXiv: 1303.7218, Bibcode: 2013A&A...553A..95M, doi: 10.1051/0004-6361/201220961, S2CID 67752733.
- ^ Royer, F.; et al. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics, 463 (2): 671–682, arXiv: astro-ph/0610785, Bibcode: 2007A&A...463..671R, doi: 10.1051/0004-6361:20065224, S2CID 18475298.
- ^ 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
External links
| Stars |
| ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||
| |||||||||||
| Galaxies |
| ||||||||||
| |||||||||||
| |||||||||||
|
| This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it. |
|
| This main-sequence-star-related article is a stub. You can help Wikipedia by expanding it. |