AstroPhysics 130mm F/6 apo, SBIG ST8E, L:60m, RGB:15m, 2X binned
NGC 7293, Helix Nebula
Amateur CCD Astronomy
By Richard D. Jacobs, M.D.
By Richard D. Jacobs, M.D.
AstroPhysics 130mm F/6 apo, SBIG ST8E, L:60m, RGB:15m, 2X binned