Harold Corwin

IC 1045 = UGC 9559. There is a -10-minute RA error in Swift's position. Here is my previous write-up from the long-ago time before Steve Gottlieb suggested in August 2017 the same error for IC 895, which obviously see.

IC 1045 may be NGC 5731 (which is -37 seconds and +2.3 arcmin from Swift's position) -- but that is far from certain: if Swift could see N5731, why could he not see its near-twin, N5730, only a few arcmin distant?

Nevertheless, Swift's comments about neighboring stars -- "nearly bet 2 sts, forms triangle with 2 sts" -- are accurate. Since this is the best candidate we have, I've listed it, though with colons.

See IC 895 and IC 1028 for more about the other nebulae Swift found this night, 1 September 1888.

The problem with my previous note is the comment about the stars near NGC 5731 -- the stars are much further away, and considerably less obvious, than those around UGC 9559. Given that Swift's positions for IC 895 and IC 1028 are also 10 minutes too small, I've no doubt that the identification with the UGC galaxy is correct.

― IC Notes by Harold Corwin

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