The Strange Warm Spot of upsilon Andromedae b

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The warmest part of upsilon Andromedae b is not directly under the light coming from its host star, as would be expected. Image Credit: NASA/JPL-Caltech

If you set a big black rock outside in the [Sun][3] for a few hours, then go and touch it, you’d expect the warmest part of the rock to be that which was facing [the Sun][3], right? Well, when it comes to exoplanets, your expectations will be defied. A new analysis of a well-studied exoplanetary system reveals that one of the [planets][4] – which is not a big black rock, but a [Jupiter][5]-like ball of gas – has its warmest part opposite that of its [star][6].

The system of Upsilon Andromedae, which lies 44 [light years][7] away from the [Earth][8] in the [constellation][9] [Andromeda][10], is a much studied system of planets that [orbit][11] around [a star][12] a little more massive and slightly hotter than [our Sun][3]. (…) Read the rest of [The Strange Warm Spot of upsilon Andromedae b][13] (827 words)

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(C) nick for [Universe Today][14], 2010. | [Permalink][13] | [9 comments][15] | Add to [del.icio.us][16] Post

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[1]: http://www.universetoday.com/wp-content/uploads/2010/10/pia13493-640-580×317.jpg (pia13493-640) [2]: http://www.universetoday.com/wp-content/uploads/2010/10/pia13493-640.jpg [3]: http://www.universetoday.com/16338/the-sun/ () [4]: http://www.universetoday.com/35923/planet/ () [5]: http://www.universetoday.com/14469/jupiter/ () [6]: http://www.universetoday.com/24184/stars/ () [7]: http://www.universetoday.com/56474/light-years/ () [8]: http://www.universetoday.com/14367/earth/ () [9]: http://www.universetoday.com/19516/constellations/ () [10]: http://www.universetoday.com/19518/andromeda/ () [11]: http://www.universetoday.com/34665/orbit/ () [12]: http://www.universetoday.com/24936/a-stars/ () [13]: http://www.universetoday.com/76303/the-strange-warm-spot-of-upsilon-andromedae-b/ [14]: http://www.universetoday.com [15]: http://www.universetoday.com/76303/the-strange-warm-spot-of-upsilon-andromedae-b/#comments [16]: http://del.icio.us/post?url=http://www.universetoday.com/76303/the-strange-warm-spot-of-upsilon-andromedae-b/&title=The Strange Warm Spot of upsilon Andromedae b [17]: http://www.universetoday.com/tag/exoplanets/ [18]: http://www.universetoday.com/tag/spitzer-space-telescope/ [19]: http://planetozh.com/blog/my-projects/wordpress-plugin-better-feed-rss/ [20]: http://planetozh.com/blog/ [21]: http://feedads.g.doubleclick.net/~a/8xJ36x93nq0EV1XSh39RtrevddI/0/di [22]: http://feedads.g.doubleclick.net/~a/8xJ36x93nq0EV1XSh39RtrevddI/0/da [23]: http://feedads.g.doubleclick.net/~a/8xJ36x93nq0EV1XSh39RtrevddI/1/di [24]: http://feedads.g.doubleclick.net/~a/8xJ36x93nq0EV1XSh39RtrevddI/1/da [25]: http://feeds.feedburner.com/~ff/universetoday/pYdq?d=yIl2AUoC8zA [26]: http://feeds.feedburner.com/~ff/universetoday/pYdq?a=8TsXYMhN8D4:z46P_k26uBs:yIl2AUoC8zA [27]: http://feeds.feedburner.com/~ff/universetoday/pYdq?d=dnMXMwOfBR0 [28]: http://feeds.feedburner.com/~ff/universetoday/pYdq?a=8TsXYMhN8D4:z46P_k26uBs:dnMXMwOfBR0 [29]: http://feeds.feedburner.com/~ff/universetoday/pYdq?d=7Q72WNTAKBA [30]: http://feeds.feedburner.com/~ff/universetoday/pYdq?a=8TsXYMhN8D4:z46P_k26uBs:7Q72WNTAKBA [31]: http://feeds.feedburner.com/~ff/universetoday/pYdq?i=8TsXYMhN8D4:z46P_k26uBs:D7DqB2pKExk [32]: http://feeds.feedburner.com/~ff/universetoday/pYdq?a=8TsXYMhN8D4:z46P_k26uBs:D7DqB2pKExk

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