Main Target tonight was M51 The Whirlpool galaxy and the recent Supernova
Birkrigg, Ulverston Cumbria
3rd June 2011
Main Target tonight was M51 The Whirlpool galaxy and the recently discovered Supernova SN2011dh.
Arrived at my main imaging site at aprox 22:25 arrived at Birkrigg, conditions were better than the previous night, only slight cloud drifting on the horizon. Set up the EQ5 and polar aligned, balanced the scope and fitted the canon 350D prime focus.
Once 3 star alignment had been successful, I tried point it various test objects to make sure alignment was centred correctly. Because I had plenty of time, I did a star tracking test and made some very slight adjustments.
At 23:44 I fitted the Bahtinov mask and did a focus test on Vega, then swung the scope over to M51 the Whirlpool galaxy and did a 30 second exposure, checked the image and zoomed in on the back of the camera to check for image trails, everything looked good, set the camera to ISO 1600 and 30 second exposures, and started imaging M51 at 23:47. I took 47 x 30 second exposures and then proceeded to take 20 blacks with the scope capped. I had great reservations on whether my equipment was capable of capturing Supernova SN2011dh, the SkyWatcher 120mm short tube refractor performed very well, and I think the supernova was at the limits of my tracking capabilities, but this will improve in the future when I finally get an auto-glider, but for now all my DSO images are unguided.
at about 00:45 i noticed a cloud bank drifting across and it was large, so I had a choice of either sitting it out or packing up for the night, I decided that packing up was the best option, I had achieved my goal for the night, imaging M51.
Ray
Cumbrian Skies
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