Heinrich d'Arrest discovered NGC 4513 on 16 Oct 1866 with the 11-inch refractor at Copenhagen. His single position is an excellent match with UGC 7683, though he questioned if it consisted of stars or was a genuine nebula.

400/500mm - 17.5" (4/15/93): faint, small, elongated 3:2 SSW-NNE, very small bright core, stellar nucleus.

600/800mm - 24" (5/30/16): at 225x; fairly faint, fairly small, elongated 3:2 SSW-NNE, 0.6'x0.4', small bright core.

The triple system VII Zw 467 = CGCG 315-044 (2 members seen) is 4' NNE and VII Zw 466 = CGCG 315-043 (empty collisional RING galaxy) is 4' N. PGC 41549 appeared very faint to faint, very small, round, 12" diameter, visible continuously with averted vision. Both PGC 2686685 and VII Zw 466 were challenging objects, only occasionally visible.

900/1200mm - 48" (4/4/13): at 488x; VII Zw 466 appeared fairly faint, small, round with a slightly brighter rim and darker center. The ring was irregular lit and brighter on the west side with a couple of slightly brighter knots north and south.

PGC 3441759, the faintest member of triple system VII Zw 467, appeared very faint, extremely small, round, 6" diameter. PGC 41549, the brightest component, is fairly faint, small, round, high surface brightness and PGC 2686685 is faint, small, elongated 2:1 NW-SE, 20"x10".

Notes by Steve Gottlieb