Quote:
Originally Posted by leon
Wow Peter, "just dialing in you reckon"  love to see it when you have it dialed in 
That is brilliant mate, so sharp and clear, can just about count every Star, well done indeed.
Leon  |
Ta Leon. It was interesting to watch the guiding plot. It settled down to 0.4 of a pixel (or about 1.5 arc sec) but was difficult to see any difference in the Dec and RA correction plots, which means the the tracking was satisfyingly "seeing limited".
The seeing was good but not excellent. Once this next run of foul weather passes through...hopefully...I'll get the colour data.
P.S.
I shouldn't do back the envelope guestimates.
With the F6 reducer the 16" Alluna is running at 2400mm, hence the image
scale per pixel is 0.3 arc sec per pixel (205* 3.76/2400)...way over-sampled.
Due the various cameras I use, I get MaxIm to simply plot guiding as a
fraction of a pixel. In this case the RMS value was 0.42 pixels.
So the RMS guiding was better than I estimated. 0.3 x 0.42 = 0.126 arc sec.