NASA Telescopes See Weather Patterns In Brown Dwarf

Jan 9, 2013 Full story: WireNews+Co

Astronomers using NASA's Spitzer and Hubble space telescopes have probed the stormy atmosphere of a brown dwarf, creating the most detailed "weather map" yet for this class of cool, star-like orbs.

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“Geologist [I'm Climate Change]”

Since: Mar 07

formerly Nuneaton

#1 Jan 9, 2013

Looks like the classical belt weather of gas giants is absent (climate modes of 4+ the number of cells per hemisphere from the equator to pole).
(Terrestrial planets have climate modes of 1 through 4), For example Titan has climate mode#5 (one upper cell equator to pole), venus is climate mode#6 (2 upper atmosphere cells equator to pole). The next climate mode up appears to be Uranus which was mode#8 when I last looked.

The reports indicate that the cells are individual storm spots with no belts.

The rotation rate appears a bit zippy. 90 minutes is considerably faster than the 9 or 10 hours of the Jupiter & saturn sized gas giants.

The next challenge would be to find weather variations on the "room temperature" brown dwarves.
May need IR or radio surveys for that one.

Have a nice day: Ag

“Geologist [I'm Climate Change]”

Since: Mar 07

formerly Nuneaton

#2 Jan 9, 2013
Oops I missed a bit in the prior post.

Terrestrial planets have modes of 1 through 4 such as mars which is in climate mode#1 with a clear atmosphere. The occasional global dust storms on mars are the very efficient post perihelion outbreaks of climate mode#4 (global cooling occurs during the event).
The Earth was in climate mode#2 (the model characterised by Jason); and is now as a result of warming just changed to mode#3 which is rather more efficient at cooling the planet.

gas giant planets have a very thisk atmosphere with only the upper cell visible at a distance. This is also effective in the case of terrestrial surfaced objects with a very thisk atmosphere with cells of 2 layers vertically in the atmosphere and behave as gas giants.
For example Titan has climate mode#5...

{See above post for the rest of the report}

Have a nice day: Ag

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