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Epoch J2000.0 Equinox J2000.0
|Right ascension||16h 10m 15.0238s|
|Declination||−84° 13′ 53.802″|
|Apparent magnitude (V)||7.69|
|Absolute magnitude (V)||4.91|
HD 142022 is a binary star system located in the southernmost constellation of Octans located at a distance of 117 ly. The primary star (HD 142022 A) has a spectral type of G9V and has apparent magnitude of 7.69. Its mass is 1% less than the Sun but the radius is only 70.5%. The star is old, only 400 million years younger than the Universe itself. It is a Population I star with metallicity of 55% greater than solar.
The primary star has a single known planet, discovered in 2005.
(in order from star)
|b||>4.47 MJ||2.93||1928 ± 46||0.53 ± 0.20||—||—|
- Eggenberger; et al. (2006). "The CORALIE survey for southern extrasolar planets XIV. HD 142022 b: a long-period planetary companion in a wide binary". Astronomy and Astrophysics. 447: 1159–1163. arXiv: . Bibcode:2006A&A...447.1159E. doi:10.1051/0004-6361:20053720. Retrieved December 12, 2007.
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