Hello,
I just found out that the galaxy NGC 5291 in Centaurus has a collisional ring. A peek at a DSS image indicates that this is of similar brightness (if not brighter) than the bridge in Keenan's system.
Centaurus is too low in the horizon for most of us in the northern hemisphere, but I'm wondering if anyone has managed to grab the collisional ring. If so, with what aperture etc?
Any observing notes (about the companion galaxy's bubble-like feature too) will be appreciated. Thanks!
Regards
Akarsh