Astronomy:HD 33283 b

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Short description: Extrasolar planet in the constellation Lepus
HD 33283 b
Discovery
Discovered byJohnson et al.
Discovery site United States
Discovery dateApril 17, 2006
Doppler spectroscopy
Orbital characteristics
0.1508±0.0087 AU
Eccentricity0.399±0.056[1]
Orbital period18.1991±0.0017[1] d
astron|astron|helion}}2463017.31±0.29[1]
155.5±7.1[1]
Semi-amplitude22.4±1.6[1]
StarHD 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. 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. Bibcode2018AJ....156..213M. 
  2. 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. Bibcode2006ApJ...647..600J. 

External links

Coordinates: Sky map 05h 08m 01.0118s, −26° 47′ 50.896″