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Mars was taken at night between 20:57 and 22:29 UTC. Equipment used: Celestron SCT C8, Barlow 2x, GSO #29 (dark red), ASI120MM Mini, HEQ5 mount.
Animation was prepared from 20 images with drizzle 150% (the best 10% of frames from 60-second movies):
One of the best images from 21:55UT:
By Cosmic Geoff
I had my C8 SE out for some visual observing but did not get much done (full moon). There was some action at Jupiter so I put the ASI224MC and the ADC on to take some images. 5000 frame videos, processed best 20% with Registax6.
The result was better than I expected with Jupiter at an altitude of 14 degrees. The image shows the Great Red Spot, some nice cloud detail, the shadow of Io and there ought to be a transiting Io there somewhere.
By Tenor Viol
I am currently waiting for a nice shiny 100mm refractor to arrive... to put on my new HEQ5 PRO.
Meanwhile, lurking in the garage in a case that hasn't been opened in over 20 years is a 40 years old this year Celestron C8 - the original fork mounted type in orange.... I'm suspecting that in order to get say a long dovetail plate to fit to it will require some modifications? At 2,000mm f/10 it will be good for lunar and Jupiter and Saturn.
Has anyone any experience of doing this with the old style C8? It's fair to say I either lack the requisite skills or equipment to do anything more complex than screw/bolt things together, is if it is more than that, suggestions as to who could carry out any necessary modifications would be welcome. I realise DEC balance will be an issue on a GEM with an SCT...
(In case you're wondering... back in 1980 when I bought it, there were no such things as dew straps, or much of anything else and I just found it not easy to use, eyepieces were ferociously expensive and I was a lowly bank clerk at the time, then I bought a house....).
Celestron C8 XLT + extras and SkyWatcher Star Travel 80 (ST80)
I have a Celestron C8 with XLT Starbrite coatings. Will include the full length base plate, both visual and imaging backs, scope rings, front 8" end cap and the finder scope with it. No box I'm afraid. Optics are good and clean, focal length is huge - 2300mm from memory. This lot would cost close to £1300 new and one with less spec went for £750 on fleabay recently. Might be interested in a part exchange or will let it go for £450 collection only.
Also, I have a SkyWatcher Star Traveler 80 - good optics, used as a guide scope - just the scope itself (does not include the barlow in the photo) - now including dovetail bar and scope rings looking at around £50 for it.
I have decided to save up for another refractor, WO, Equinox or even toward an Esprit. However, I would also consider p/ex for an Intel NUC and/or Pegasus Astro Pocket Powerbox.
Please excuse some of the colours - I used my astro modded 6D which was in the observatory so the "nice" purple is actually black !!
Both these are collection only.