RPK_Astro Posted October 9, 2020 Share Posted October 9, 2020 The issue is at the end of this post - but I'll go through set-up etc. Despite buying my HEQ5 PRO at the beginning of June, it took until 1st week of September for the Esprit 100 APO to arrive. Its arrival didn't add cloud, merely continued what had been going on since the end of the long fine spell at the end of May.I know I have more work to do to improve PA for example e.g. I haven't confirmed that the reticle is correctly aligned, but it does seem to be 'OK'. With a camera an a 200mm lens a 200s exposure has little/no evidence of trailing. I had a successful first session with the Esprit about 3 weeks ago and my first image was M31. Not enough subs, but I was impressed with the results considering only about 12m of data.Now to last night.I had an orchestra rehearsal last night (yay - been shut down for 7 months) so it was about 22.30 when I got home. Miraculously it was clear. Got scope out, PA was quick. Problem with no prior set-up is getting finder aligned. Mount alignment took a while as until work on garden is completed, I've basically got a 'slot' that runs N - S: Vega was too low, as was Altair, Aldebaran was blocked by house etc. So, took a while to get through alignment process. Used Deneb to focus the Z6 with a Bahtinov mask (the Z6 has focus peaking which helps too).Headed for NGC 7000. Schoolboy error as ISO was left at 12,800.... so second image... by now clouds coming in from the north. Switched to M31...Anyway, I had about 15 minutes' of observing time before it clouded over.Examining the images on the Mac, there's a problem. On all of the images, it looks like it starts then moves. It must then 'settle' as the end point is brighter.I've attached one of the images - this is a JPEG generated from the RAW file - no processing whatsoever other than re-sizing to post here.I'm guessing I rushed part of the set-up process and perhaps cable was dragging or similar? I will be adding an RPi with Astroberry and a guidecam shortly.Would appreciate thoughts. Quote Link to comment Share on other sites More sharing options...
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