Astronomy:HD 33283 b
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Short description: Extrasolar planet in the constellation Lepus
| Discovery | |
|---|---|
| Discovered by | Johnson et al. |
| Discovery site |  United States |
| Discovery date | April 17, 2006 |
| Doppler spectroscopy | |
| Orbital characteristics | |
| 0.1508±0.0087 AU | |
| Eccentricity | 0.399±0.056[1] |
| Orbital period | 18.1991±0.0017[1] d |
| astron|astron|helion}} | 2463017.31±0.29[1] |
| 155.5±7.1[1] | |
| Semi-amplitude | 22.4±1.6[1] |
| Star | HD 33283 |
HD 33283 b is an exoplanet orbiting around HD 33283. The mass of the planet is about 1/3 that of Jupiter or about the same as Saturn. However, the planet orbits very close to the star, taking only 18 days to complete its orbit with average speed of 86.5 km/s (311400 km/h). Despite this, its orbit is eccentric, bringing it as close as 0.075 AU to the star and as far away as 0.215 AU.[2]
See also
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Ment, Kristo et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal 156 (5): 213. doi:10.3847/1538-3881/aae1f5. Bibcode: 2018AJ....156..213M.
- ↑ Johnson, John Asher et al. (2006). "The N2K Consortium. VI. Doppler Shifts without Templates and Three New Short-Period Planets". The Astrophysical Journal 647 (1): 600–611. doi:10.1086/505173. Bibcode: 2006ApJ...647..600J.
External links
Coordinates: 
05h 08m 01.0118s, −26° 47′ 50.896″
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