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geoflewis last won the day on April 14

geoflewis had the most liked content!


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  1. Honestly it has been a dreadful year since Novemeber 2020. I was imaging Mars during the previous 3-4 months, so could do some of that in cloud gaps, but since I switched back to DSO at the end of Nov '20, it's been a real struggle....
  2. Really good that David.
  3. Thanks David, I wondered about that too. I alternated between ramping up and dialling down the use of the high pass filter, ended up somewhere between the two....
  4. All data captured between 6-14 June 2021. C14+x0.63 Optec telecompressor; QSI583wsg; Chroma LRGB & Astronomic Ha (6nm) filters. Processed in ImagesPlus.
  5. I keep coming back to this image as I don't like the overly magenta hue and the galaxy arms should be a fairly intense blue/cyan. Hence, I've reprocessed it applying selective colour adjustments to the 'blues' to give them more emphasis. Also additional curves and levels adjustments for more contrast and brightness in the galaxy to lift it from the background and ran a gentle high pass filter to enhance structures within the galaxy. Thanks for looking and please be honest if you think this version is better or worse....
  6. Looking back through the very few images that I've managed in 2021, I came across some data for the M90 spiral galaxy in Virgo, which I forgot that I started back in April. I was hoping to add some Ha, but the weather didn't play kindly during most of May and it was too far west by the time the skies cleared in June, hence I started on the M101 image posted earlier today. Better late than never I guess, but here is my M90 LRGB image shown together with it's companion, irregular galaxy IC3583.
  7. Excellent collection of images Gina. I particularly like the Spaghetti Nebula.
  8. Hi all, It's been a slow year for imaging, with most of galaxy season a wash. We are now into 2+ months of no astro dark from my 52N location, but with a run of recent clear nights I thought I'd have a try at M101 in Ursa Major. This proved a very difficult target with the RGB data suffering badly from background sky gradients, I think mostly caused by the rapidly varying sky brightness over the barely 3 hours per night of limited darkness, as the sky rapidly moved from nautical twilight, through astro twilight and back to nautical twilight between 11:30pm and 2:30am. In fact to get the final result I had to discard a significant proportion of the RGB subs, including about 50% of the green data, as unusable, as they were producing a blotchy green and magenta background that was very difficult to process away. I'm still not sure about the final colours, but anyway here is my look at a summer Pinwheel... Thanks for looking.
  9. Hi John, thanks for posting this. I too was shocked and saddened to here this dreadful news from Carole and like you I also only knew Kev through this and other astro forums, but we chatted a bit that way, including his early warnings of cloud headed my way down the east coast and over the North Sea. He also put me on to the FlightRadar24 app to monitor/track military aircraft out of RAF Coningsby, whose flightpath frequently took them overhead at his north Lincs location, then sometimes back round over the north Norfolk coast region. My sincere condolences to Angela and family, who will be devastated at their loss
  10. That's a super image Peter and an amazing scope too👍
  11. Superb image Peter, it's like a catherine wheel in the sky 👍
  12. Yeah, such comparisons will always leave one disappointed. I'd be pretty stoked to have that one in my collection.
  13. You may think that it's not perfect David, but it is a cracking, deep image and worth all the trials and tribulations you had getting there. Really well done.
  14. Congrats to the winners, 3 excellent images, as were many of the other entries.
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