I finally had a chance to use my custom 250mm f/4 aspherical Mak Newt astrograph last PM. The skies were clear but the jet stream is overhead; seeing was moderately poor FWHM 2.8. This is a test image of the Eastern Veil. Each STL11k frame was 300 seconds and 4 frames were stacked for a total of 20 minutes. I'm pleased with the detail in the nebula, the depth from such a short exposure, and I can't believe the number of stars!! Although it looks like a gradient in the right portion of the image, there is none. The imcreased background brightness is due to faint portions of nebulosity and increased stars.
I think the test went well. Now to get some RGB frames.
Any thoughts?
Best,
Tom
I think the test went well. Now to get some RGB frames.
Any thoughts?
Best,
Tom
Attached Image:
Starsearch Observatory
Lat 42N 47' 00" Long 112W 10' 47"
Elev 1752m
www.tvdavisastropics.com