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- Sun Nov 16, 2008 2:52 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Fomalhaut b (2008 Nov 14)
- Replies: 39
- Views: 11902
sense of rotation
Do the two (merged) photos of the planet define the rotational sense of the system? Has that already been determined using doppler measurements on the dust ring? Would this be the first system in which sense of rotation is established? Is there a standard definition of "north" using the ri...