Celestron 9.25 inch F/10 SCT, SBIG ST-8E, L:30m, RGB:5m 2X binned - from a light polluted urban site
NGC6309
Amateur CCD Astronomy
By Richard D. Jacobs, M.D.
By Richard D. Jacobs, M.D.
Celestron 9.25 inch F/10 SCT, SBIG ST-8E, L:30m, RGB:5m 2X binned - from a light polluted urban site