That is an amazing image Mike.
Here are the first descriptions of NGC 1512.
https://picasaweb.google.com/1100488...28767992263970
They were made by James Dunlop in 1826 and John Herschel.
Dunlop 466 "A small faint round nebula; about 25" diameter, a little brighter in the centre: a star of the 10th or 12th magnitude preceding the nebula."
Dunlop discovered about 50 galaxies.
https://picasaweb.google.com/1100488...2146/Dunlop28#