BD+14°4559 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | BD+14°4559 | |
| Constellation | Pegasus | |
| Right ascension | (α) | 21h 13m 35.99s[1] |
| Declination | (δ) | +14° 41′ 21.8″[1] |
| Distance | 158 ± 9[1] ly (48 ± 3[1] pc) | |
| Spectral type | K2V | |
| Orbital elements | ||
| Semi-major axis | (a) | 0.777 AU |
| Periastron | (q) | 0.552 AU |
| Apastron | (Q) | 1.002 AU |
| Eccentricity | (e) | 0.29 ± 0.03 |
| Orbital period | (P) | 268.94 ± 0.99 d (0.7363 ± 0.0027 y) |
| Argument of periastron |
(ω) | 87.64 ± 7.87° |
| Time of periastron | (T0) | 53293.71 ± 6.35 JD |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 1.47 MJ |
| Discovery information | ||
| Discovery date | June 10, 2009 | |
| Discoverer(s) | Niedzielski et al. | |
| Discovery method | radial velocity | |
| Discovery site | La Silla Observatory | |
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
BD+14°4559 b is an extrasolar planet located approximately 158 light years away in the constellation of Pegasus, orbiting the 10th-apparent-magnitude K-type main-sequence star BD+14°4559. It has a mass 147% that of Jupiter and takes 0.74 Earth years to orbit the star.[2] BD+14°4559 b was discovered on June 10, 2009 using the Hobby–Eberly Telescope.
See also
References
- 1 2 3 4 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
- ↑ 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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