Object name: NGC7217
NGC 7217 is a very strange galaxy in Pegasus. It has a huge core of old stars that show filaments of star clouds resembling arms. These grow faint then suddenly turn blue indicating the stars making up this outside area are all young hot stars. The filaments of spiral-like structure can be followed up to about 10 seconds of the very core of the galaxy. They cross this fainter region and keep going. This is a very strange structure. The outer blue region has caused the galaxy to be classified as a ring galaxy which is generally conceded to be wrong. It's just an illusion caused by the faint region between the old and young star regions. Why it has this construction isn't well known. The galaxy has an active nucleus and is a LINER class galaxy. I couldn't find a good distance estimate for it. Redshift indicates it is very near at about 30 million light years but at that distance redshift can be highly misleading. Still, it appears to be in the ballpark at least. This is one case when the Kitt Peak image of this galaxy isn't much better than mine. Sometimes their seeing isn't much better than mine here -- but that's rare. Note they show a distance of about 40 million light years but don't state where they get that figure.
Related Designation(s):1AXG J220754+3121, 2MASS J22075238+3121336, 2MASX J22075236+3121333, 2MASXi J2207522+312133, AKARI J2207525+312135, CGCG 2205.6+3107, CGCG 494-002, GALEXASC J220752.28+312132.8 , IRAS 22056+3106, IRAS F22056+3106, ISOSS 107, ISOSS J22078+3121, KIG 0947, LQAC 331+031 001, MCG +05-52-001, NGC 7217, NGC 7217:[LB2005] X01, NGC7217, NSA 149587, PGC 068096, UGC 11914, UZC J220752.5+312133, [SLK2004] 1750, [VCV2001] J220752.6+312133, [VCV2006] J220752.6+312133,