Rob is having too much fun!
Great shot, Rob! Unfortunately the weather here is deteriorating rapidly even as I get the old equatorial mount/camera platform cleaned and adjusted this afternoon. Instead of a longer exposure, have you tried stacking multiple short exposures?
From: Rob Ratkowski <ratkwski@hawaii.rr.com> To: Utah Astronomy <utah-astronomy@mailman.xmission.com> Date: Fri, 7 Jan 2005 07:45:43 -1000 Subject: Re: [Utah-astronomy] Comet & M-45
Thanks Jim,
But I have a long way to go. I'm using a pro-sumer camera not designed for exposures longer that 30 sec. and w/a 10 min. exposure so much heat is generated, the CCD reads this as photons and the image is degraded. It was still fun to be out exposing and enjoying the cool (60) Hawaiian night. I'll try again tonite IF it doesn't rain as predicted.
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Hi Chuck I was just reading on stacking and blending. I did some a while back but the results were not right so I put that technique aside. I will in time get a astro CCD camera and by then I will have learned the stacking/blending routine to where it's just part of the process. If our weather holds I'll be out again tonite and possibly w/ my friend Pennrod and his SBIG camera and 200mm F2 Nikkor lens on a Celestron CGE mount. A real camera w/ real tracking ............. aloha Rob
Rob Ratkowski wrote:
I was just reading on stacking and blending. I did some a while back but the results were not right so I put that technique aside.
What's say the next time you shoot the comet you shoot a bunch of short exposures and save them for when you figure out how to stack them? Or you might make them available on the web so others could stack them for you. Patrick
Hi Patrick great idea, but I'll have to learn stacking too. If the weather is good tonite, I'll shoot shorter exposures, how many is good?? Any size preferred?? Any input from Utah astrophotographers is appreciated ............ Aloha Rob PS I'd e-mail a group of photos rather than put them on-line, more efficient I think.
participants (3)
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Chuck Hards -
Patrick Wiggins -
Rob Ratkowski