Quote:
Originally Posted by ericwbenson
I think those numbers are incorrect. I dug out the original report from Hogg 1965 (see attached PDF), and he talks about a CARSO Automatic Seeing Monitor and a Danjon 'to' parameter (the latter needs to be multiplied by 2 to be somewhat equivalent to the former). I don't think either can be interpreted as the FWHM we measure with our modern sensors.
On my webpage I reproduce the graph from Wood et al 1995 that is mentioned elsewhere in this thread. That data is fits in with my observations.
I think I could improve my local seeing if I could cool my dome late afternoon before nightfall (sorta like the CFHT obs in the link Shiraz points to), but running on solar power+batteries only means a very small AC unit 
A project I have been thinking about is adding more fans to the CDK20 to cool the mirror better/faster. The later model CDKs (17/24) have extra fans on the side of the tube, alas mine predates that innovation, I wonder if it makes a big difference.
EB |
Hi Eric,
Thank you for taking the time to look in to that, it was right up your alley - Arkaroola. I enjoyed looking at your webpages and reading of your remote observatory development.
Best
JA