Quote:
Originally Posted by gbeal
In your case though shooting 2 minute exposures, I would do them at the same time, and in fact do them part way through the sequence.
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I had the same thoughts - given when I'm imaging the temp is always dropping minute by minute.....
Quote:
Originally Posted by gbeal
I am surprised you couldn't see the Helix, is it possible you were not "on the spot"? Why I ask is that I tried it last night, as it has been one of those subjects I have never really sorted. With a simple 5 second exposure binned 3x3 it was visible, (I did this to ensure the goto was accurate, and to "frame" it centrally). Even 7 seconds at 1x1 showed it. (ST2000XCM and 8" f4 newt).
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Don't know about not being on the spot - G-11 Gemini is pretty good, and its a big target! Put NGC1365 on the chip without realigning after the Helix search - the field looked right.... see what you think.... Don't know if we can compare - f/7.5 vs f/4 - SBIG vs DSI.... still thought I would see
something.....
This is the scout frame - I estimate 50'x35' or so DSI frame.... I can't match it to anything near the Helix! maybe I did miss by a long way! Will try again when it is clearer..... If you can tell where I am please let me know
