Cf the motions of 4567 and 4568, it sure looks as if they're right in the
same region of space. 4567 has a radial v of 2247 k/s, where 4568 is moving
at 2255. 4567's redshift is 0.00758, and 4568's is 0.00752. So they are
close neighbors in a similar motion pattern. Just not close enough for
pulling stars around nor generating starburst areas.
Maybe in several millennia they'll start and blow the amateurs with their
enhanced intrinsic optics away. Those guys on the hilltops with their
corneas gathering light like an old-fashioned 20" mirror.
I gotta go to bed. See you at the Lake, TACos.
JD
Jamie Dillon <mavericks@No-Spam> <http://www.winepress.com/jd1.htm>
"Scattering me amidst the countless stars
You gathered me up again in your lap..."
- from a poem by Rabindrinath Tagore