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tag:blogger.com,1999:blog-1014682403395027648.post-4715180447249190467: Potassium in the Atmosphere of a Hot Jupiter
Beyond Earthly Skies

Direct link Potassium in the Atmosphere of a Hot Jupiter

27 Mar 2015, 22:00 UTC <span style="font-family: inherit;">Observations have shown that there is a lot of diversity in the atmospheres of hot Jupiters. Some hot Jupiters have atmospheres that are obscured by high altitude hazes, while others have relatively clear skies. When a transiting hot Jupiter passes in front of its host star, the amount of starlight it obscures depends on the composition of its atmosphere. This is because the presence of atmospheric species such as sodium and potassium let less light through at certain wavelengths. Since the inferred size of a hot Jupiter is based on the amount of starlight it obscures, the planet’s size can appear slightly larger at wavelengths where the planet’s atmosphere is more opaque.&nbsp;</span><br /><div style="text-align: center;"><span style="font-family: inherit;"><br /></span></div><div class="separator" style="clear: both; text-align: center;"><a href="http://1.bp.blogspot.com/-IdkkgE4unp8/VRUzbBFCnEI/AAAAAAAAHOw/tQvkxXnIpoI/s1600/Post%2B-%2BMarch%2B2015%2B(13)%2B-%2B1.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="550" src="http://1.bp.blogspot.com/-IdkkgE4unp8/VRUzbBFCnEI/AAAAAAAAHOw/tQvkxXnIpoI/s1600/Post%2B-%2BMarch%2B2015%2B(13)%2B-%2B1.jpg" width="640" /></a></div><div style="text-align: center;"><span style="font-family: inherit;">Figure 1: Artist’s impression of a planet transiting a star. Image credit: ESA/ATG medialab.</span></div><span style="font-family: inherit;"><br /></span><span style="font-family: inherit;">HAT-P-1b is a hot Jupiter in a close-in 4.47 day orbit around a Sun-like star. Being so close to its host star, its dayside is heated to temperatures well over 1,000 °C. HAT-P-1b has 1.319 times the radius and 0.525 times the mass of ...
http://www.planetary.org/system/rss/www.planetary.org-627467480: Ceres Gets Real; Pluto Lurks
The Planetary Society Blog

Direct link Ceres Gets Real; Pluto Lurks

27 Mar 2015, 21:10 UTC
http://feeds.feedburner.com/5C95FA86-76C3-4931-832C-E99F83AE0951: Historic yearlong mission crew launches to space station on Soyuz TMA-16M
collectSPACE.com: Space History News

Direct link Historic yearlong mission crew launches to space station on Soyuz TMA-16M

27 Mar 2015, 19:55 UTC
http://feeds.feedburner.com/4e7de01a-3fc9-4122-eebe-d0a356e03d12: Epic One-Year Mission to the ISS Ready for Launch
Discovery News - Space News

Direct link Epic One-Year Mission to the ISS Ready for Launch

27 Mar 2015, 18:45 UTC
http://www.newscientist.com/article/dn27259: Twin Earths may lurk in our nearest star system
New Scientist

Direct link Twin Earths may lurk in our nearest star system

27 Mar 2015, 17:28 UTC
https://medium.com/p/c67efa3638cc: Throwback Thursday: Past the Fingers of God
Starts With a Bang!

Direct link Throwback Thursday: Past the Fingers of God

27 Mar 2015, 02:43 UTC

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