John Herschel discovered NGC 7155 = h3899 on 30 Sep 1834 and recorded "pB; S; lE; psmbM; 20"." His position (measured also the next sweep) is accurate. Lewis Swift found this galaxy again on 17 Sep 1897 and logged "eeF; pS; R; in line with 2 9m st[ars]." His position was 28' too far north, but Harold Corwin comments that Swift's description of the two bright stars clinches this identification. So, IC 5143 = NGC 7155.

600/800mm - 30" (10/9/15 - OzSky): at 394x; bright, moderately large, elongated 3:2 N-S, ~1.6'x1.1'. Sharply concentrated with an intensely bright, roundish core and fainter extensions (bar) oriented E-W. The core/bar is encased in a much larger, low surface brightness halo. Located 14' NW of mag 7.7 HD 208360. The galaxy is collinear with two mag 11-11.5 stars 4' and 6.4' SE.

Notes by Steve Gottlieb