Article suggests: 6,000mph winds pushing hot air from star-side
My first thought: the planet itself is of a material composition that is conducting the temperature star-side to dark-side through the core
The wiki article indicates that high sodium signals have been detected, but my material science and thermodynamics is crap so I can't say whether or not that says anything about the planet's internal thermal conductivity. :/ Would love your comments if you can speak to this.
Nevermind...I guess it does! :) That would explain the small differential. Our water content and spin is the supposed reason ours is such a small difference.
And now...I really want to watch Chronicles of Riddick.
The Earth's molten iron core is way hotter than its crust. What if this planet is still pre-cooled-crust? Hunh. (Fuck, do I even remember my rogue geology properly? Planet formation - everything's hot for a long time, cools outside to inside...?)
There's not going to be any visible crust on this planet. From radial velocity measurements, we know that it's mass is slightly greater than Jupiter's. This means that it is certainly a gas giant planet like Jupiter and Saturn, with no surface to speak of. The HD189733 system is one of those lucky cases where the planet's orbit is aligned so that we can observer it transit the disk of its sun--an eclipse nearly 70 light years distant. The radius of a transiting planet can be inferred from the degree that the star dims when the planet passes in front of it. HD189733 has been measured by this technique to be slightly larger than Jupiter. So, similar mass and radius as Jupiter -> similar density -> HD189733 is gas giant
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the planet's distance from its star would make a difference. plus the heat has gone through the planet. i wouldn't be surprised if Mercury has a similar heat ratio.
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My first thought: the planet itself is of a material composition that is conducting the temperature star-side to dark-side through the core
The wiki article indicates that high sodium signals have been detected, but my material science and thermodynamics is crap so I can't say whether or not that says anything about the planet's internal thermal conductivity. :/ Would love your comments if you can speak to this.
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And now...I really want to watch Chronicles of Riddick.
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As I'm typing this, I have another thought...
The Earth's molten iron core is way hotter than its crust. What if this planet is still pre-cooled-crust? Hunh. (Fuck, do I even remember my rogue geology properly? Planet formation - everything's hot for a long time, cools outside to inside...?)
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