by Richard Crisp
I was using a 150mm camera lens with my ccd camera (CM10/KAF3200 sensor)
The image is a tricolor narrowband emission line image, using [SII] for Red, Halpha for Green and [OIII] for Blue
I took 5 x 20 minutes Halpha, 9 x 20 minutes [SII] and 4 x 20 minutes [OIII]. I would have liked to have more [OIII] exposure but thin clouds moved in and I had to stop after four exposures. Total exposure time was 6 hours.
After tossing together the data I was surprised that the thin [OIII] was good enough to make a decent image. So here it is:
http://www.narrowbandimaging.com/ic405_cm10_150mm_s2hao3_page.htm
Posted on sf-bay-tac Nov 13, 2005 12:10:21 PT
Converted by report.pm 1.2 Mar 16, 2006 20:22:26 PT