Quote:
Originally Posted by Saturnine
That's a fine set of images despite the seeing, must be the quality of the scope and processing to get that result, lovely detail.
Was out imaging Jupiter at the same time in what I'd call 7-8 /10 seeing, was quite steady, using an 8" f6 newt, 2.5 Powermate, on an EQ6 but the mount has issues so my results are nowhere as finely detailed as yours.
|
Thanks for your comments Jeff, I appreciate them.
I’m still a little uncertain when it comes to estimating the seeing, so I slew to a bright star e.g. Spica and compare what I am seeing to the images on Damien Peach’s website and go from there. In particular, I find his descriptions such as “
Arcs of diffraction rings sometimes seen” help provide a bit of objectivity.
The ‘scope was mounted on my EM200 mount and I was autoguiding through a WO 66mm Petzval. With this set up, Jupiter would remain more or less centred in the 4x2 arcmin FOV for each batch of x10 RGB captures of R=30 G=30 B=30 secs with a 210 sec interval between sets.
I think the biggest upgrade has been going from the ASI 120MM-S where I was getting frame rates of around 20-25fps to the ASI 290MM where I am now getting around 60fps. The increased sensitivity of the ASI 290MM is quite noticeable.
I think that these factors really do help when the seeing is marginal.
Cheers
Dennis