HD 222095
 
| |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Phoenix |
| Right ascension | 23h 37m 50.99418s[1] |
| Declination | −45° 29′ 32.4672″[1] |
| Apparent magnitude (V) | 4.74[2] |
| Characteristics | |
| Spectral type | A2V[3] |
| U−B color index | +0.09[2] |
| B−V color index | +0.08[2] |
| Astrometry | |
| Radial velocity (Rv) | +3.40[4] km/s |
| Proper motion (μ) | RA: +70.71[1] mas/yr Dec.: -12.66[1] mas/yr |
| Parallax (π) | 16.29 ± 0.22[1] mas |
| Distance | 200 ± 3 ly (61.4 ± 0.8 pc) |
| Absolute magnitude (MV) | 0.80[3] |
| Details | |
| Mass | 2.55[5] M☉ |
| Luminosity | 41.42[3] L☉ |
| Surface gravity (log g) | 3.92[5] cgs |
| Temperature | 9,230[5] K |
| Metallicity [Fe/H] | -0.01[6] dex |
| Rotational velocity (v sin i) | 141[5] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 222095 is a class A2V[3] (white main-sequence) star in the constellation Phoenix. Its apparent magnitude is 4.74[2] and it is approximately 200 light years away based on parallax.[1]
References
- 1 2 3 4 5 6 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. Vizier catalog entry - 1 2 3 4 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.
- 1 2 3 4 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. Vizier catalog entry
- ↑ 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.
- 1 2 3 4 David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. Vizier catalog entry
- ↑ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031. Vizier catalog entry
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