HD 89744 b
From Infogalactic: the planetary knowledge core
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 89744 | |
| Constellation | Ursa Major | |
| Right ascension | (α) | 10h 11m 10.5621s |
| Declination | (δ) | +41° 13′ 46.308″ |
| Distance | 130 ly (40 pc) |
|
| Spectral type | F7V | |
| Orbital elements | ||
| Semi-major axis | (a) | 0.934 ± 0.054 AU |
| Periastron | (q) | 0.302 AU |
| Apastron | (Q) | 1.566 AU |
| Eccentricity | (e) | 0.6770 ± 0.0072 |
| Orbital period | (P) | 256.80 ± 0.13 d (0.70307 y) |
| Orbital speed | (υ) | 39.7 km/s |
| Argument 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 | ||
| Minimum mass | (m sin i) | 8.58 ± 0.71 MJ (2730 M⊕) |
| Discovery information | ||
| Discovery date | April 22, 2000 | |
| Discoverer(s) | Korzennik et al. | |
| Discovery method | Doppler Spectroscopy (Echelle) |
|
| Discovery site | Whipple Observatory | |
| Discovery status | Confirmed | |
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 89744 b is an eccentric Jupiter extrasolar planet orbiting the star HD 89744.[2]
In a simulation of a 10 million year span, this planet swept away all test particles "except for a narrow region near the 8:3 resonance". There can be no planets in this star's habitable zone. Observation has ruled out any planet over 0.7 Jupiter mass within a year period.[3]
References
External links
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Coordinates: 
10h 11m 10.5621s, +41° 13′ 46.308″
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