Quote:
Originally Posted by TR
Ok, here is my graph from Melbourne Central. Mount helps a lot but no sub arc second seeing here. Need a special mountain top for that. That's my standard automation quick view.
Terry
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Hi Terry,
Wow, that's quite tight guiding, what's the guider image scale?
I find, just watching the guide errors on the PMX that mostly the guide error is below 1.5 pixels (which works out to 3 pixel p-p, which is what the seeing generally is around here). I have found that short exposure, rapid guiding leads to poor guiding, whereas about 2-3 second exposures and setting the minimum move to .3 pixel smooths everything out nicely. I still end up with slightly elongated stars sometimes, but it's usually a focus issue.
I'm always looking for better guiding though.
Cheers
Stuart