Hi, here's my observation from 11/8/2009: ngc 7640 is a galaxy in Andromeda : mag: 11.3 ; size: 8.1' x 1.7' ; elongated and rather faint ,brighter central area and mottled edges. I used a 10mm Radian...
I remember this galaxy as being somewhat disappointing in my 6" Newtonian telescope because I always hoped to see more of it than an oval glow. With my 20" from Southern France 8 years ago I logged:...
NGC 7640 as perceived by A.L. with a 13" at 70x back in 1991: "Mottled glow amongst faint stars. Elongated. Hard to see where it ends." The mottledness is due to the AI's description of star forming...
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