Deep Space Object Astrophotography with a Celestron C8 SCT. Polar alignment, auto-guiding, CCD imaging, calibration, stacking, processing.
Sunday 15 May 2011
Cleaning Telescope, Optics, Required
I noticed donuts on the optics tonight. Not cleaned for a while, so will be out with the alcohol and wipes tomorrow... A few 300s exposures also had the donuts visible in the frames, which must mean serious dirt and serious cleaning...
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