NGC 3102 NGC 2675
Uma
☀13.3mag
Ø 78'' / 30''

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William Herschel discovered NGC 2692 = H III-831 = h534 on 17 Mar 1790 (sweep 945) and simply noted as "vF, vS." His position is less than 2' southeast of UGC 4675. On 17 Feb 1831 (sweep 328), John Herschel wrote, "vF; S; R; psbM" and measured a more accurate position.

400/500mm - 17.5" (2/8/86): fairly faint, small, slightly elongated ~N-S. A mag 13 star is 2.1' NW of center. Forms a pair with UGC 4671 3.4' NW. NGC 2693 lies 43' S.

600/800mm - 24" (2/13/18): at 200x and 375x; moderately bright, elongated 2:1 NNW-SSE, ~50"x25", small bright core.

UGC 4671, located 3.4' NW and a similar redshift, appeared fairly faint, round, ~40 diameter, slightly brighter core. A mag 13 star is at the northeast edge of the halo and a similar star is 1' SE. I'm surprised both Herschel's missed this galaxy as it is only slightly less evident than NGC 2692.

UGC 4690, located 13' NE, appeared fairly faint, fairly small, elongated 3:2 or 4:3 WNW-ESE, 30"x20", small slightly brighter nucleus. There is just a hint of a larger halo. A mag 12 star is 1.2' N.

Notes by Steve Gottlieb