UGC 10402 = VV 560 is an interacting pair of disturbed spirals. On the SDSS, the pair has a "Sickle" shape, with the fainter curved section at the north end and the elongated "handle" at the south end.

600/800mm - 24" (7/10/18): at 375x; faint, fairly small, slightly elongated, low surface brightness, ~15"x10". An extremely faint star (double on the SDSS) is ~25" E.

24" (7/23/14): at 375x and 500x, appeared faint, small, elongated 3:2 SW-NE, ~18"x12". An extremely faint glow was noted 27" east of center, but the SDSS reveals this is a very close pair of extremely faint stars. Jimi Lowrey felt he detected the tail to the north, but I was unable to confirm.

24" (7/7/13): at 282x appeared as a faint, elongated glow with a brighter elongated knot oriented N-S on the south side. The fainter northern component occasionally resolved into a very faint, very small glow, ~10" diameter.

900/1200mm - 48" (5/10/18): at 610x; the main southern galaxy appeared fairly faint, fairly small, elongated 5:3 or 2:1 SSW-NNE, ~18"x10". It was brighter and mottled along the major axis but with a fairly low surf brightness. There was a strong impression of an extension or tail to the SSW, increasing the size to nearly 30"x10". A very faint mag 17.7 star was visible very close north [17"]. The southern end of the hook-shaped northern galaxy was seen as a low surface brightness glow, slightly elongated, 12"-15" in length, but the actual "sickle" portion to the north was not seen.

Notes by Steve Gottlieb