UGC 11359 K 1-16
Dra
☀14.2mag
Ø 84'' / 60''

UGC 5600 is classified as a "Good Candidate for a Polar-Ring Galaxy" in the 1990 photographic atlas of polar-ring galaxies. Interestingly, UGC 5609 = VV 330a is also a Ring galaxy with a knot or nucleus along an oval ring! The two galaxies have nearly identical redshifts, so the ring morphologies is likely caused by a direct collision.

400/500mm - 18" (4/14/12): at 280x appeared fairly faint, fairly small, irregularly round, 25" diameter. Contains a bright core that gradually increases to the center. Forms a pair with UGC 5609, a slightly fainter ring galaxy situated just 1.3' SSE. On the DSS, UGC 5600 appears to have a small polar ring and a large, very low surface brightness detached ring. UGC 5596 (similar brightness) lies 15' N.

600/800mm - 24" (4/13/18): at 200x and 375x: fairly faint, fairly small, slightly elongated, ~30"x25"; contains a small slightly brighter nucleus. Forms an interacting pair (VV 330) with UGC 5609 1.4' SSE. Located 12' SW of mag 8.4 HD 89069.

900/1200mm - 48" (4/6/13): at 375x appeared fairly bright, fairly small, elongated 2:1 N-S, 30"x15". Contains a very bright, elongated core. First in a trio with UGC 5609 (Ring galaxy) 1.3' SSE and MCG +13-08-018 3.4' NE. Viewed in soft seeing.

Notes by Steve Gottlieb