HD 12661
From Wikipedia, the free encyclopedia
| Observation data Epoch 2000 |
|
|---|---|
| Constellation (pronunciation) |
Aries |
| Right ascension | 02h 04m 34.29s |
| Declination | +25° 24' 51.5" |
| Apparent magnitude (V) | 7.44 |
| Distance | 121.2 ly (37.16 pc) |
| Spectral type | G6 |
| Other designations | |
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HIP 9683
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HD 12661 is a yellow star (spectral type G6) in the constellation of Aries. It has two extrasolar planets. It is 121 light years from Earth and is one and a half times larger than our Sun.
Contents |
[edit] Planetary system
| Planet (in order from star) |
Mass (MJ) |
Orbital period (days) |
Semimajor axis (AU) |
Eccentricity |
|---|---|---|---|---|
| b | >2.34 ± 0.19 | 262.53 ± 0.27 | 0.834 ± 0.048 | 0.361 ± 0.011 |
| c | >1.83 ± 0.16 | 1679 ± 29 | 2.86 ± 0.17 | 0.017 ± 0.029 |
[edit] References
- Fischer et al. (2002). "Planetary Companions to HD 12661, HD 92788, and HD 38529 and Variations in Keplerian Residuals of Extrasolar Planets". The Astrophysical Journal 551 (2): 1107 – 1118. doi:.
- Fischer et al. (2003). "A Planetary Companion to HD 40979 and Additional Planets Orbiting HD 12661 and HD 38529". The Astrophysical Journal 586 (2): 1394 – 1408. doi:.
- Butler et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646: 505 – 522. doi:. (web Preprint)
[edit] See also
[edit] External links
- HD 12661. SIMBAD. Retrieved on 2006-04-14.
- Notes for star HD 12661. The Extrasolar Planets Encyclopaedia. Retrieved on 2006-04-14.
- Two Planets Around HD 12661. California & Carnegie Planet Search. Retrieved on 2006-04-14.
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