UGC 9761 IC 4564
Boo
☀13.5mag
Ø 4.2' / 18''

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400/500mm - 17.5" (7/17/01): extremely faint and thin edge-on oriented WSW-ENE situated just west of a mag 12.5 star. Requires averted but clearly seen as ghostly sliver ~3.0'x0.3' oriented SW-NE. The surface brightness is very low and nearly uniform, only dropping off gradually at the tips. Could nearly hold steadily at 220x with concentration.

17.5" (6/27/98): not seen initially at 220x. Switching to 280x (7mm Pentax) and using averted vision, a very thin ghostly streak became evident oriented WSW-ENE, perhaps 2.5'x0.3'. The geometric "center" of the galaxy appears to be 1' NW of a mag 12.5 star, although the streak did not brighten towards the center. With concentration the galaxy could almost be held steadily with averted vision.

600/800mm - 24" (7/21/12): picked up at 200x as a faint, fairly large, razor thin needle, roughly 10:1 WSW-ENE, ~3.2'x0.3'. A mag 12.8 star lies 1.3' SW and ~1' S of the ENE tip. Excellent view at 322x. There was no discernible core or central bulge though the central region just west of the star is slightly brighter and the galaxy gradually fades out towards both tips. PGC 2152475 (not in Megastar) was picked up 4' NE.

900/1200mm - 48" (4/4/11): fairly faint, extremely thin edge-on with no central bulge, at least 13:1 ratio WSW-ENE, ~4.0'x0.3'. Contains a slightly brighter core but relatively very weak central brightening. A mag 16-16.5 star is just off the north side, 45" ENE of center. Roughly 1/4 of the length of the galaxy extends beyond this star though the galaxy fades at the tips beyond an overall length of 2.5'. PGC 2152475, a faint 15" glow, is located 4' NE.