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Old 25-June-2005, 07:29 PM
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Arneb Arneb is offline
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Join Date: Jun 2005
Location: Aachen, Germany
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So I am back, and we lost 2:3 to them Brasilians - well, no shame to loose against those....

But then I seem to have lost my guess for the astronomer who discovered S Andromedae.... uuuh, hu #-o #-o #-o

As I thought, the one about the reddest body was solved while I was away It is indeed Amalthea. The redness comes from sulfuric and ferric dust deposited on it from the volcanoes on Io. It was the last Solar System body to have been discovered by eye (instead of photographic plates), in 1892; and the first satellite of Jupiter to be discovered after the four Gallilean moons; unsurprisingly, it is the largest of the Jovian moons after the Gallileans, at 276 km, potato-shaped; here' s a picture:
http://antwrp.gsfc.nasa.gov/apod/image/amalthea_vg1.gif

With a pricier amateur equipment (think upward of 8") you can resolve it in a good sky on the right time (I am a beginner, I could'nt yet).

And finally, Amalthea was the nymph (I hadn't heard about the goat, the horn and cornucopia - nice to learn that one!) who nursed Zeus when he had to hide from the voracious appetite for children that his father Kronos (Saturn) had.

Here's to you, champion_munch and eroica =D> =D> =D>

As to the asteroid, no idea ops:
I think I'll have to wait for the next question.... 8)
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