Quote:
Originally Posted by AG Hybrid
Well spotted it again tonight. Had to wait for "sucker holes" in the clouds so I can get some clear sky for Sirius.
Here was my log of events:
*Removed cover off my 12" dob.
*Rolled it out of a rather warm garage.
*Extended the OTA to full length.
*Checked collimation and made adjustments accordingly.
*Selected a 14 min Delos. This gives about 106x magnification and an exit pupil of about 3.3 mm
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Maybe those fans do work, I have owned both a 12.5" Dob and later a 12" Dob but never was able to split Sirius. It was closer then off course. However, like most things, once done, it becomes easier.
It might be wise to recheck the exit pupil calculations... I suspect it is closer to 2.8mm.