HD 189733b

Is anyone, or thing, out there?
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Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

HD 189733b

Post by Christopher K. » February 21st, 2011, 8:35 pm

A science team has in vain attempted to confirm preliminary reports of a methane emission line in the spectrum of exoplanet HD 189733b. This may have been telling as living organisms on Earth release methane during their digestion processes. Team members are affiliated with the Goddard Space Flight Center, Caltech, University of California at Berkeley, Catholic University of America, and the University of Texas at Austin.

Lying about 60-65 light years away in the constellation Vulpecula, HD 189733b was the first exoplanet in whose atmosphere there was conclusive evidence of water vapor; its star is less massive and cooler than the Sun. The exoplanet is 15% more massive than Jupiter and orbits its star at a mere four-and-a-half million kilometers, taking 2.2 Earth days to complete a circuit.

More information at:
http://astrobiology.nasa.gov/articles/n ... hd189733b/
http://apod.nasa.gov/apod/ap070512.html
http://www.esa.int/esaCP/SEMBDZI2O3F_index_0.html

About HD 189733b:
http://planetquest.jpl.nasa.gov/atlas/a ... Planet=289

Christopher K.
Posts: 4335
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: HD 189733b

Post by Christopher K. » October 2nd, 2014, 6:56 pm

A nice artist's conception is at JPL's Space Images section. When it was chosen as an "Image of the Day" the credit read in part C. Carreau; I don't know if that's the artist.

Conception:
http://www.jpl.nasa.gov/spaceimages/det ... d=PIA10364

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