William Herschel discovered NGC 410 = H II-220, along with NGC 407 = II-219, on 12 Sep 1784 (sweep 268) and recorded "Two. The preceding faint, very small. The following pretty large". Herman Schultz measured an accurate position at Uppsala.

300/350mm - 13.1" (9/29/84): brightest of 3, fairly bright, bright core, slightly elongated SW-NE, NGC 414 4.5' SE.

400/500mm - 17.5" (12/23/89): moderately bright, moderately large, slightly elongated, broadly concentrated halo, stellar nucleus. In a trio with NGC 407 5' WSW and NGC 414 5' SE.

Notes by Steve Gottlieb