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by Ross Tessien
Tue Jun 10, 2008 7:36 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: Cat's Eye Hubble Remix (APOD 22 Mar 2008)
Replies: 17
Views: 8203

Q re PN periodic spherical ejections

Does anyone know off hand the velocities for the FLIERs and the spherical ejections for e.g. Cat's Eye PN? ie, what is the period between the spherical ejections, and how much faster velocity are the FLIERS.......ie, they correspond to which of the spherical ejections in timing when traced back to i...