Bad Ronald
2010-Aug-30, 01:50 AM
Titan's composition top to bottom is:
atmosphere
surface (liquid bodies, dunes, ice, mountains, etc et al)
ice crust/layer
subsurface H2O or H2O/NH3 ocean
Si core
yes?
And on Titan, CH4 (& other hydrocarbons) is analogous, even "equivalent" to H2O on Earth. H2O, or H2O & NH3, are the "equivalent" or analogue of lava & magma on Earth, making Titan's subsurface ocean like Earth's mantle. I read Titanese mountains, & other solid land, are formed by H2O, or H2O & NH3, erupting through the surface & freezing solid.
Do I have Titan's anatomy right so far?
I wonder how many Titanoid exoplanets there could be. Some may be supertitans.
Titan (& Titanoid worlds that may exist) are Earthlike yet simultaneously extremely unEarthlike.
A possible Titanoid planet or supertitan could be an Earth sized or larger planet covered in a global ocean of CH4 {&/or other hydrocarbons} possibly hundreds of miles deep with an N2/hydrocarbon atmosphere, no land or ice volcanos anywhere. Surface & air temperatures might be comparable to Titan's.
Or there could be Titanoid "Earths", possibly orbiting a red dwarf at 1 AU or so. Surface 78-80% CH4 (&/or other hydrocarbon) oceans, 20-22% land which is really frozen H2O or H2O/NH3, probably with sand dunes. Maybe a Titanoid "Earth" would have a single large moon composed primarily of frozen H2O or H2O/NH3 ice(s).
...
Your input & thoughts?
atmosphere
surface (liquid bodies, dunes, ice, mountains, etc et al)
ice crust/layer
subsurface H2O or H2O/NH3 ocean
Si core
yes?
And on Titan, CH4 (& other hydrocarbons) is analogous, even "equivalent" to H2O on Earth. H2O, or H2O & NH3, are the "equivalent" or analogue of lava & magma on Earth, making Titan's subsurface ocean like Earth's mantle. I read Titanese mountains, & other solid land, are formed by H2O, or H2O & NH3, erupting through the surface & freezing solid.
Do I have Titan's anatomy right so far?
I wonder how many Titanoid exoplanets there could be. Some may be supertitans.
Titan (& Titanoid worlds that may exist) are Earthlike yet simultaneously extremely unEarthlike.
A possible Titanoid planet or supertitan could be an Earth sized or larger planet covered in a global ocean of CH4 {&/or other hydrocarbons} possibly hundreds of miles deep with an N2/hydrocarbon atmosphere, no land or ice volcanos anywhere. Surface & air temperatures might be comparable to Titan's.
Or there could be Titanoid "Earths", possibly orbiting a red dwarf at 1 AU or so. Surface 78-80% CH4 (&/or other hydrocarbon) oceans, 20-22% land which is really frozen H2O or H2O/NH3, probably with sand dunes. Maybe a Titanoid "Earth" would have a single large moon composed primarily of frozen H2O or H2O/NH3 ice(s).
...
Your input & thoughts?