Date: 3/04/2019 21:56:07
From: Tau.Neutrino
ID: 1370479
Subject: Telescope Observes Atmosphere of Extrasolar Planet

Ground-Based Telescope Directly Observes the Atmosphere of an Extrasolar Planet, and Sees Swirling Clouds of Iron and Silicates

We’ve finally got our first optical look at an exoplanet and its atmosphere, and boy is it a strange place. The planet is called HR8799e, and its atmosphere is a complex one. HR8799e is in the grips of a global storm, dominated by swirling clouds of iron and silicates.

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Date: 3/04/2019 23:00:04
From: Michael V
ID: 1370489
Subject: re: Telescope Observes Atmosphere of Extrasolar Planet

Tau.Neutrino said:


Ground-Based Telescope Directly Observes the Atmosphere of an Extrasolar Planet, and Sees Swirling Clouds of Iron and Silicates

We’ve finally got our first optical look at an exoplanet and its atmosphere, and boy is it a strange place. The planet is called HR8799e, and its atmosphere is a complex one. HR8799e is in the grips of a global storm, dominated by swirling clouds of iron and silicates.

more…

Ta.

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Date: 4/04/2019 17:57:01
From: mollwollfumble
ID: 1370799
Subject: re: Telescope Observes Atmosphere of Extrasolar Planet

I keep promising myself to take more interest in exoplanet atmospheres.

But i don’t think anyone understands even what’s in Jupiter’s atmosphere yet.

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Date: 5/04/2019 08:16:05
From: mollwollfumble
ID: 1371000
Subject: re: Telescope Observes Atmosphere of Extrasolar Planet

mollwollfumble said:


I keep promising myself to take more interest in exoplanet atmospheres.

But i don’t think anyone understands even what’s in Jupiter’s atmosphere yet.

Hold on! Yes, we do. I just had a thought.

Jupiter’s atmosphere consists of hydrogen, helium, methane, ammonia, water, artificial colouring and artificial flavouring.

Its colour, from top to bottom, is clear – white – brown – black. We saw the black when SL-9 hit.

But, and here’s the clever part, when Miller-Urey combined methane, ammonia, water and lightning (which Jupiter has plenty of), their mixture darkened from clear to black over a period of weeks. Miller-Urey was actually a simulation of Jupiter’s atmosphere. And we know what chemicals were produced (the small ones anyway) is detail. So there’s a good chance that we’ve known what Jupiter’s artificial colouring and artificial flavouring are since 1952.

“One-step reactions among the mixture components can produce hydrogen cyanide (HCN), formaldehyde (CH2O), and other active intermediate compounds (acetylene etc.)” These are colourless, in small quantities.

Oh dammit. Where’s the information on the chemicals produced other than the bloody amino acids? Not in wikipedia.

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