HD 89744
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| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Ursa Major |
| Right ascension | 10h 22m 10.5621s |
| Declination | +41° 13' 46.308" |
| Apparent magnitude (V) | 6 |
| Distance | 130 ly (40 pc) |
| Spectral type | F7V |
| Other designations | |
|
HIP 50786
|
|
HD 89744 is an F-dwarf star about 130 ly. away in the constellation Ursa Major.
[edit] HD 89744 b
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Semimajor axis | (a) | 0.934 ± 0.054 AU |
| Eccentricity | (e) | 0.6770 ± 0.0072 |
| Orbital period | (P) | 256.80 ± 0.13 d |
| Angular distance | (θ) | 22 mas |
| Longitude of periastron |
(ω) | 194.4 ± 1.2° |
| Time of periastron | (T0) | 2,451,505.33 ± 0.39 JD |
| Semi-amplitude | (K) | 267.3 ± 5.0 m/s |
| Physical characteristics | ||
| Mass | (m) | >8.58 ± 0.71 MJ |
| Discovery information | ||
| Discovery date | 2000 | |
| Discoverer(s) | Korzennik et al. | |
| Detection method | Doppler Spectroscopy | |
| Discovery status | Confirmed | |
HD 89744 b is an eccentric Jupiter extrasolar planet orbiting HD 89744.[2]
[edit] References
- ^ Butler et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505 – 522. doi:. (web Preprint)
- ^ Korzennik et al. (2000). "A High-Eccentricity Low-Mass Companion to HD 89744". The Astrophysical Journal 533 (2): L147 – L150. doi:.
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