RCOS 12.5” F/9 RC, SBIG ST8XE, L:45m, RBG:5m, 2X bin
NGC3628
Amateur CCD Astronomy
By Richard D. Jacobs, M.D.
By Richard D. Jacobs, M.D.
RCOS 12.5” F/9 RC, SBIG ST8XE, L:45m, RBG:5m, 2X bin