RCOS 12/5” F/9 RC, SBIG ST8XE, L:60m, RGB:15m, 2X bin
M66
Amateur CCD Astronomy
By Richard D. Jacobs, M.D.
By Richard D. Jacobs, M.D.
RCOS 12/5” F/9 RC, SBIG ST8XE, L:60m, RGB:15m, 2X bin