Another image from Saturday night on the Peak

by Richard Crisp

Conditions were very good up on Fremont Peak last night. This is what I ended up finishing the night shooting. I ran out of dark while shooting the blue data and was only able to take three exposures in blue. This is a total of one hour of exposure using 5 minute subexposures.

http://www.narrowbandimaging.com/m8_widefield_300mm_6303_rgb_page.htm

The image was taken using a Pentax SMC 300mm f/4 medium format lens as the telescope and the FLI IMG6303E camera for image capture.

It is an RGB image: no fancy emission line filters this time.

I managed to everexpose a bit so I had a number of bloomed stars. The ones with the blue or red haloes surrounding them were some of the ones that bloomed. It looks like there's a fair amount of scattering of the red and blue light in those sort of situations or maybe it is some other phenomenon. I think they look like blue and red Christmas tree lights :-)

Posted on sf-bay-tac Apr 30, 2006 17:51:20 PT
Converted by report.pm 1.4 May 04, 2006 20:37:15 PT

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