Baton Rouge Astronomical Society Forum

It is currently August 18th, 2018, 1:36 pm

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 2 posts ] 
Author Message
 Post subject: HD 189733b
PostPosted: February 21st, 2011, 8:35 pm 
Offline

Joined: October 12th, 2009, 3:28 pm
Posts: 4196
Location: Baton Rouge, LA
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/no-methane-emission-from-the-exoplanet-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/atlas_profile.cfm?Planet=289


Top
 Profile  
 
 Post subject: Re: HD 189733b
PostPosted: October 2nd, 2014, 6:56 pm 
Offline

Joined: October 12th, 2009, 3:28 pm
Posts: 4196
Location: Baton Rouge, LA
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/details.php?id=PIA10364


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group