Astronomy:HD 181433 b

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Short description: Super-Earth orbiting HD 181433
HD 181433 b
Discovery
Discovered byBouchy et al.[1]
Discovery siteLa Silla Observatory, Chile[2]
Discovery dateJune 16, 2008[2]
Doppler spectroscopy[2]
Orbital characteristics
astron|astron|helion}}0.111 AU (16,600,000 km)
astron|astron|helion}}0.048 AU (7,200,000 km)
0.080 AU (12,000,000 km)[3]
Eccentricity0.396[3]
Orbital period9.3743[3] d
Average Orbital speed93
astron|astron|helion}}2454542 ± 0.26[3]
202 ± 10[3]
StarHD 181433


HD 181433 b is an extrasolar planet located approximately 87 light years away[4] in the constellation of Pavo, orbiting the star HD 181433. This planet has mass at least 7.56 times that of Earth. This planet is classified as a super-Earth and orbits at 0.080 AU and varies only about 0.063 AU with an eccentricity of 0.396.[3] François Bouchy et al. have published a paper detailing the HD 181433 planetary system in Astronomy and Astrophysics.[1]

References

  1. ↑ 1.0 1.1 Bouchy, François; Mayor, Michel; Lovis, Christophe; Udry, Stéphane; Benz, Willy; Bertaux, Jean-Loup; Delfosse, Xavier; Mordasini, Christoph et al. (2009). "The HARPS Search for Southern Extra-solar Planets. XVII. Super-Earth and Neptune-mass Planets in Multiple Planet Systems HD 47186 and HD 181433". Astronomy and Astrophysics 496 (2): 527–31. doi:10.1051/0004-6361:200810669. Bibcode: 2009A&A...496..527B. http://www.aanda.org/articles/aa/full_html/2009/11/aa10669-08/aa10669-08.html. 
  2. ↑ 2.0 2.1 2.2 "A Trio of Super-Earths" (Press release). ESO. 2008-06-16. Archived from the original on 2008-10-07. Retrieved 2008-10-02.
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 Schneider, J.. "Notes for Planet HD 181433 b". Extrasolar Planets Encyclopaedia. https://exoplanet.eu/catalog/hd_181433_b--481/. Retrieved 2008-10-02. 
  4. ↑ van Leeuwen, F. (2007). "HIP 95152". Hipparcos, the New Reduction: The Astrometric Catalogue. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=95152. Retrieved 2008-10-02. 

External links

Coordinates: Sky map 19h 25m 09.5663s, −66° 28′ 07.671″




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