Cet
☀15.9mag
Ø 42'' / 24''
Drawing Uwe Glahn

With a redshift z between 0.79 and .082 (depending on the source), this galaxy has a light-travel time of just over 1 billion years.

Stephane Javelle discovered IC 30 = J. 1-22, along with IC 29, 32 and 33, on 6 Nov 1891. His position is accurate. This is one of the 5 most distant galaxies discovered visually in the NGC/IC.

600/800mm - 24" (9/23/17): at 375x; extremely faint and small, 12" (probably the core only). The galaxy was only occasionally visible though confirmed. Second and probably faintest in a quartet of IC galaxies with IC 29 5.7' SSW.

Notes by Steve Gottlieb