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First time out with the new gear. Just managed to get off a single shot before the clouds rolled in. Here for illustrative purposes, nothing more. More to come.

QSI 583ws, -43C from ambient.
1 x 240s Ha (3nm)
No calibration.

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Comment by Trevor Woodrow on August 19, 2011 at 11:22am
4 mins? Can't wait for the finished product!
Comment by spike77 on August 18, 2011 at 7:19pm
i frame awesome conor
Comment by Conor on August 18, 2011 at 1:34pm
There were actually two of them:




And for comparison, some other examples of CR/GRBs on CCD chips:




Comment by Dave Lane on August 18, 2011 at 1:13pm
Its a cosmic ray hit. I've got rid of dozens of them. Interesting thing is I seem to get lots of meteors in frames and maybe a asteroid or two and I always try to calibrate them out. Maybe I should calibrate them in :)
Comment by Conor on August 18, 2011 at 10:11am
I examined the FITS again. It's a cosmic ray without a doubt. The scaling for the upload here has reduced the intensity, but in the original, the pixels are most certainly flipped.

Would have been cooler if it were an asteroid, but just plain old sporadic Universal radioactive decay.
Comment by Conor on August 17, 2011 at 1:50pm
Thanks guys. I was pretty impressed at how much detail I got in a single shot, bearing in mind that the moon was up. The tracking was sub-par also; might need to tweak some PHD settings or switch back to my LVI smartguider. Anyway, I really hope to get more scope time soon. I'm quite eager to see what a full set of subs and calibration frames will produce. Hopefully I'll be able to upload something better next time...

On looking at the image again this morning, I noticed the CCD was struck by a cosmic ray whilst shooting this frame (Bottom, off left centre) - Pretty cool. It's the first time I've seen the cause of so many RAM parity errors in person.
Comment by Dave Lane on August 16, 2011 at 4:07pm
Dude looks for a 4 minute sub frame!

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