Talk:Gliese 436 b

message: The planet (436b) transits!  This, in my opinion, is much more noteworthy than the 'habitable' 581c-- first time we directly know the size (in addition to the mass) of a Neptune-like planet outside our own solar system.   
The planet 436b deserves its own page, which I would set up myself if I wasn't so busy. Unexpect 07:26, 16 May 2007 (UTC)
replies: text: Note that with the direct radius measurement allowed by the transit observations, the planet was determined to be an ice giant much like Neptune, rather than a rocky body as is speculated in the article.   This is just one reason why the fact that this planet transits is so important Unexpect 07:34, 16 May 2007 (UTC)
thread_title: Transits!

message: I think I must not be understanding something correctly here or the article is wrong. The article says "Its main constituent is likely to be hot "ice" in various exotic high-pressure forms, which remains solid because of the planet's gravity despite the high temperatures." This doesn't make sense. We all learn in beginning physics that as the pressure goes up ice will not form until the pressure is lower. Unless somehow the planet has less pressure even though the gravity is higher (something other than the water there keeping it suspended or something) then there can be no such thing as "hot ice." Could someone explain this? Should I change the article? Ergzay (talk) 04:21, 5 December 2007 (UTC)
replies: text: Why didn't somebody answer this person's question - geez! Pressure and heat are directly related (see Ideal gas law), not pressure and (absense of heat) cold. Jupiter's core is three thousand degrees Celsius, even though the surface is far below zero, that being due to internal pressure. On the other hand all crystal need is to form is pressure, not necessarily cold, but less pressure is needed when your remove heat. Liquid Carbon won't turn into a diamond just becuase it cools, it requires enormous pressure. Better late than never - If I missed something correct me.  GabrielVelasquez (talk) 23:13, 25 June 2008 (UTC)
replies: text: Also, consider this: . Instead of hot ice, the planet might just be a rocky core surrounded by gas and hot air. Seems fitting somehow -- Zimriel (talk) 02:38, 7 August 2008 (UTC)
thread_title:  "Hot Ice" 

message: New Planet discovered. Possibly in the neighborhood of this one...
http://news.yahoo.com/s/afp/20080409/sc_afp/spaceastronomyplanets_080409190123 Dreammaker182 (talk) 09:39, 10 April 2008 (UTC)
replies: text: It wouldn't be relevant to this article if true. Belongs in Gliese 436 the system. Although the eccentricity of this planet does imply others... --Zimriel (talk) 20:38, 15 August 2008 (UTC)
thread_title:  GJ 436T 

message: It says the mass is 0.5 Solar Masses and it's radius is 0.42 solar masses. Then it's shown it is the same size as Neptune. So what is this planet's mass? 0.5Ms would make it a star... -- 212.201.74.49 (3 February 2013)
:You are confusing the mass of the "Parent star" with the mass of the planet (~22 Earth mass). -- Kheider (talk) 20:10, 3 February 2013 (UTC)
thread_title: Mass?

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