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View Full Version here: : Ha P.S.T. solar pics 24-9-2016


blinky
25-09-2016, 09:59 PM
Hello, took the opportunity to try imaging the sun again with my p.s.t. on Saturday morning. No prominences were added for these pics as something i tried with them didn't work out. Still haven't overcome the problem of the bright patch despite trying my best to maneuver the camera and image to the best position. I don't think a flat (yet to be tried) will help me because i deliberately move the disc across the fov during capture to help eliminate the newton rings, therefore moving the bright spot as well. I'm also combining two images here to get the full disc. Having fun trying in the mean time. A pic from spaceweather.com is in there for comparrison of sun spots. Also a pic of my p.s.t. attached with rubber bands:eyepop: and no nose piece to achieve focus.
Hardware: ASI 120mm, equatorial mount, coronado p.s.t.
software: autostakkert2, registax, GIMP2
Leigh

Star Catcher
25-09-2016, 11:34 PM
Nicely results wth a PST. You can deal with the uneven lighting by doing an artificial flat in PS. It is a good backup in case your actual flat does not work well or if you don't do a flat.

See attached result using a blur mask of 20 pixels and the multiply option in layers.
Ted

blinky
26-09-2016, 07:49 PM
thanks heaps for the tip Ted! i've only just started to learn ps. long way to go.....