CGEM at lower latitudes?
Posted 07 December 2012 - 02:03 AM
Posted 07 December 2012 - 02:22 AM
Posted 07 December 2012 - 09:26 AM
since I live at 1.22 degrees latitude, the brick trick didn't work for me, so -
The above solution was nice, but the solid CNC machined wedge is quite heavy and it wasn't cheap to have made. So for my other mount I had a different wedge fabricated which is made from four aluminum plates bolted together.
Much lighter, and it doesn't seem to be weaker.
Posted 07 December 2012 - 10:21 AM
Posted 07 December 2012 - 11:18 AM
Posted 07 December 2012 - 08:04 PM
Posted 08 December 2012 - 11:50 AM
Posted 08 December 2012 - 11:55 AM
i just started using the ASPA on my CGEM here in Singapore. it works great, actually. Better alignment than I ever did with drift alignment.
Posted 08 December 2012 - 09:31 PM
Posted 08 December 2012 - 10:09 PM
if you have access to an autoguider, much better... the PEC routine can cut the PE in half, allowing you to double your unguided exposures.
but really, at a really dark site, 60-second subs will show plenty, just use lots of them.
Posted 09 December 2012 - 04:45 PM
Posted 10 December 2012 - 02:24 PM