Archives for: November 2006, 23

2006-11-23

Permalink 07:23:48 am, by Tim Harpur Email , 151 words, 335 views   English (CA)
Categories: Reports

Clear Skies (Finally)

Clear skies and an opportunity to go to Binbrook for observing - but of course it couldn't be that easy. Yes, the sky was quite clear, but down closer to the ground we had a slight fog/haze and the half dozen or so of us observing were overcome by dew in just over an hour - despite a wind that was somewhat stronger than forecast and making stars jump around at any higher power. I managed to get about 20 minutes of imaging in before my telephoto camera lens dewed over - and even my Tuthill heated dew shield on my main scope couldn't keep the dew away. But the sky was clear.

The following (drastically reduced) image of the Pleiades (M45) was taken with a Canon Digital Rebel XTi using an f/5.6 400mm apo telephoto lens piggy-backed on my main scope. A combination of 2x2min, 2x4min, and 2x6min at ISO800.

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