Planets: Difference between revisions
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|Class V gas giants have primarily hydrogen and helium atmospheres, with thick clouds of sillicates and iron compounds, even metallic iron.They are the hottest type of gas giants with temperatures at their upper cloud decks above 1400 K, and much hotter in the lower layers, often emitting a dull glow from the internal heat within. | |Class V gas giants have primarily hydrogen and helium atmospheres, with thick clouds of sillicates and iron compounds, even metallic iron.They are the hottest type of gas giants with temperatures at their upper cloud decks above 1400 K, and much hotter in the lower layers, often emitting a dull glow from the internal heat within. | ||
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|Helium-rich gas giant | |||
|Very Rare | |||
|Unknown | |||
|Helium-rich gas giants have a greatly inflated percentage of helium compared to the hydrogen in their atmosphere. Much of their hydrogen has been lost over time because they have insufficient mass to hold on to it. It may also be because temperatures in their past were much higher, driving off the hydrogen at a greater rate. | |||
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|[[File:Gas_giant_with_ammonia_based_life.png|thumb|center]] | |[[File:Gas_giant_with_ammonia_based_life.png|thumb|center]] | ||