NGC 3612 IC 648_1
Leo
☀14.1mag
Ø 42'' / 30''

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David Todd discovered NGC 3436 = Todd 6 on 30 Nov 1877 (AN 2698) using the 26-inch Clark refractor at the USNO during his search of a trans-Neptunian planet. There is nothing at his very rough position, but based on Todd's sketch, Corwin was able to identify NGC 3436 as CGCG 038-039. This galaxy is located 2.2 min of RA following Todd's position and 9' north. The offsets with the stars he sketched to the east and west are a perfect match with this galaxy.

RNGC places NGC 3426 at 10 42.4 +07 56 (2000) or 8.9 min west of Todd's position. There is nothing at this location in CGCG, MCG or RC3 and I couldn't identify any object at this position on the DSS! I mentioned this error in RNGC Corrections #6.

400/500mm - 17.5" (4/15/99): very faint, very small, irregular. Sometimes I had the impression that a very faint star was superimposed. Located 7' S of mag 8.5 SAO 118552.

Notes by Steve Gottlieb