Case Histories: Whichever Episode It Was
Oct. 13th, 2011 02:36 pmSpoilers:
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I didn't write about these interesting results before because Sicardy asked people not to. More specifically, he said that the work had been accepted for publication in the journal Nature, and that Nature had told him he could present the results at DPS only if he stated to the audience that they were under embargo and could not be reported on. He repeated this at the end of his talk. He was wrong, as it turns out; it was completely unnecessary to impose such restrictions.
Eris' unexpectedly small diameter but surprising brightness implies, Sicardy said, that it is possibly the second-brightest surface known in the solar system, after Enceladus; its albedo is very nearly 1.0. This is even brighter than freshly fallen snow (albedo 0.8) and way brighter than water ice clouds (0.55).