@vgr same as moon phases varying in brightness? ie depends on the relative position of our angle to ISS and the Sun?
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@drethelin Dunno.
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@vgr earth occlusion maybeThanks. Twitter will use this to make your timeline better. UndoUndo
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@vgr Does the ISS rotate at all? If so, it wouldn't be surprising if the amount of light reflected varied quite a bit... -
@vgr Well, according to Yahoo Answers the ISS rotates just once per orbit (keeping same face toward ground) https://answers.yahoo.com/question/index?qid=20101222053132AAs12TA …
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@vgr Don't see anything about rotation in Wikipedia. It _is_ dropping from space at > 7% per year!Thanks. Twitter will use this to make your timeline better. UndoUndo
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@vgr with each pass being at a different time of day and year, the incident angle of the sun to the station must varyThanks. Twitter will use this to make your timeline better. UndoUndo
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@vgr and since it has odd-shaped surface features, sunlight will sometimes bounce off in a way that makes it really bright, sometimes notThanks. Twitter will use this to make your timeline better. UndoUndo
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