BD+14°4559
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Pegasus |
| Right ascension | 21h 13m 35.99s[1] |
| Declination | +14° 41′ 21.8″[1] |
| Apparent magnitude (V) | 9.63 |
| Characteristics | |
| Spectral type | K2V |
| B−V color index | 1.00 |
| V−R color index | 0.56 |
| R−I color index | 0.5 |
| Variable type | none |
| Astrometry | |
| Proper motion (μ) | RA: 235.80 ± 1.21[1] mas/yr Dec.: 1.78 ± 0.97[1] mas/yr |
| Parallax (π) | 20.68 ± 1.24[1] mas |
| Distance | 158 ± 9 ly (48 ± 3 pc) |
| Absolute magnitude (MV) | 6.14 |
| Details | |
| Mass | 0.86 ± 0.15 M☉ |
| Temperature | 5008 ± 20 K |
| Metallicity | 0.1 ± 0.07 |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
| Extrasolar Planets Encyclopaedia | data |
BD+14°4559 is a 10th magnitude K-type main sequence star located approximately 158 light years away in the constellation of Pegasus. On June 10, 2009 an exoplanet BD+14°4559 b was found in orbit by Niedzielski et al using the Hobby-Eberly Telescope.[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥1.47 MJ | 0.777 | 268.94 ± 0.99 | 0.29 ± 0.03 | — | — |
See also
References
- 1 2 3 4 5 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. Vizier catalog entry
- 1 2 Niedzielski, A.; et al. (2009). "Substellar-mass Companions to the K-dwarf BD+14 4559 and the K-giants HD 240210 and BD+20 2457". The Astrophysical Journal 707 (1): 768–777. arXiv:0906.1804. Bibcode:2009ApJ...707..768N. doi:10.1088/0004-637X/707/1/768.
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