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budski

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Everything posted by budski

  1. Hi Pete, ... as always, superb image..... The seeing your location seems to be consistently better than in Yeovil. I'm beginning to warm to the idea of Barbados.... Bud
  2. How nice to see such a superb, tight image - I've almost given up hoping for some half decent weather before Jupiter recedes once more. So far, my 2014 Obs Log Book has only one entry in it....
  3. Hi James, I salute your dedication and tenacity. Its one thing to take the pictures but quite another to process them to such a high standard. It's also true that us West Country boys & girls are a hardy bunch who are prepared to spend many a long night in the freezing cold-laughing in the face of such adversity. I say this without fear of contradiction .... from the comfort of my warm studio while controlling all aspects of my 'scope remotely. Keep up the good work, James! Cheers Bud
  4. Don't you get the impression that the area to the right of the crater looks like that rippled effect of rain on concrete before it has set? I can well imagine a passing meteor shower hammering the lava to an apple crumble consistency. Not very scientific, I know.......
  5. Like a few other correspondents here, I was waiting to do a Jupiter imaging run on Saturday night/Sunday morning but took the opportunity to have a look at the Moon while waiting for the planet to clear the roof tops. The seeing looked pretty steady so I upped the 'scope (C11) to f25 and took a set of videos. At this magnification one can expect a drop-off in clarity so I wasn't surprised to find most of the captures unusable. One imaging run, however, looked reasonably clear so I persevered with it to see what could be coaxed out of the original material. The image is uncropped so what we're seeing here is the sensor's 1280 (horizontal) pixels of which Copernicus fills about a quarter i.e. 320 pixels. The crater is 90Km (56 miles) in diameter so approx 3.5 pixels = 1Km (6 pixels per mile). We're not quite ready to see any Lunar Rover tyre tracks just yet but what is quite interesting (maybe?) is the 5 pointed star shadow at the centre of the crater. Beyond that I would like to think that at some time in the near future better cameras will reveal any skree or large boulder rubble at the inside of the crater walls. We shall see. Bud PS: The Jupiter session was aborted by mist not long after.... The image is approx 16Mb .
  6. I've only just got round to processing this one which I made a conscious effort to limit the over-exposure problem of sunlit crater rims. The method needs more experimentation but I feel it produces a much more natural result than the usual 'Soot and Whitewash' effect. The real challenge would be to extract some of the deep shadow detail ... which is probably beyond me and my equipment. Taken on my usual gear - C11 and the IDS e2v camera. Bud
  7. Hi Bryan, I think Piotr (Riklaunim) has summed it up pretty well regarding the Infra Red sensitivity. The IDS camera is a fussy old thing and if the seeing is less than good it can be brutally dismissive of me and my 'scope. I've imaged Mars, Jupiter and Saturn with it and many a session has been abandoned with the all too familiar line " I don't know why I bother........". But we do, don't we. Bud
  8. Thank you everyone. It seems to be so rare to get a really clear night these days (no pun intended!). One thing I have noticed in these pictures is that the IDS camera seems to 'see' a lot of ghost craters underneath the lava plains. I must check this out with my other Lunar archive stuff to see if this is consistently the case. Bud
  9. Apologies..... I should have included the technical details...... The scope is a modified C11 at native focal length ( f10) with a Starlight Express Filterwheel and the IDS e2v 1280x 1024 NIR mono sensor. This remarkable camera (and one night of very good seeing) has enabled me to to produce an HD video of a Lunar 'tour' lasting about 4.5 minutes. Needless to say, the file size of said file is in the order of 23 Gbytes so not something easily disseminated. I still await, however, that one magic night when all becomes clear..... I could be waiting a long time. In the meanwhile, my scope and mount - despite their considerable weight - managed to get blown over by the recent gales. Luckily, they had a soft landing so no damage done but I shall be more cautious in the future! Bud
  10. Finally I've got round to posting some lunar images taken with the Near Infrared IDS u-eye camera. The original file sizes are rather large (124 Mb) so these JPGs are somewhat compressed. It'll be interesting to get your feedback to see what they look like on a variety of social media display tablets. Bud
  11. Hi Pete, excellent results... as we've come to expect from you. If it wasn't for this wildly erratic weather over the UK, we'd all get a few consecutive clear nights to practice the dark arts! As it was, I spent the early part of yesterday evening securing my roll-off scope housing to prevent the screaming gale from taking it to oblivion. It was still there this morning so at least it survived this latest onslaught. Bud
  12. Hi Freddie, I'm very intrigued with the exceptional quality of your blue Jupiter. Could you show us what the Red and Green images are like in comparison. Usually, it's the Blue channel which is the worst but somehow you've managed to get it spot-on. Have you any thoughts on this matter? Kindest regards Bud
  13. Hi Pete, just looked in on SGL tonight after a few months away and pleased to see you're getting some pretty good results. Nice one! Kindest regards. Bud
  14. Hi Stuart, I've just seen the images from those guys in Tahiti - jaw-droppingly good. Having said that, I can only praise the UK-based imagers on their skill to produce more than acceptable results given our atrocious weather. Bud
  15. Thanks Guys, it's always good to get some feedback from fellow sufferers ! I ran a batch of images in that same session which were at native focal length (ie. f10) but only processed the 'big' (f25) one to see how it would compare with all the excellent work coming from non-UK locations. I guess my yardstick was to see if I could clearly discern the Cassini gap all the way round to the front of the disk. I managed this ok on the Red Filter but not on the Green or Blue. It's reassuring to know that 2 years ago I would have given my right arm to produce results like this but we strive for perfection, eh? I'll have a stab at the f10's later to see what they reveal. Bud
  16. Hi James, well..... If Bee-keeping's a bad idea then I'm not sure what else I can do. Ah, I know...., perhaps I ought to get out a bit more and meet people. Is Tony Blair still the Prime Minister?
  17. Hi Guys, it's been a long time since I posted anything here on account of the so few clear nights. Last night was probably the clearest sky I've had in ages and no Moon glare to compete with. In my location, Saturn's low elevation in the UK makes it suffer badly from the warm air rising from surrounding neighbours rooftops and smokestacks. Given the lighter evenings, this is probably as good as it's likely to get on this apparition. I've done some experimentation with the ASI 120MM camera and the latest (Beta) 2.3 version of FireCapture testing out the 16 bit option. The RGB captures were 120 seconds at 60 fps on the usual C11/CGEM DX mount, f20~via TV 2.5 PowerMate. Stacked in AS!2 then R6. Having seen Darryl's superb effort a few weeks back I wonder if it's time to take up bee-keeping as a pastime... Bud
  18. Hi Darryl, .... Absolutely stunning images - you have put in all the hard work so rightly deserve the accolades. At the moment, with our atrocious weather, I'm more likely to produce a hit record than even catch sight of the ringed beauty. As I write this the Weatherman on TV has just said we're colder than Greenland. Sigh....
  19. Just a quick update .... I've sent an email to Grischa Hahn regarding this topic. If I get a reply I'll post it.
  20. Hi Darryl, I only mentioned this because you can generically do it in Photoshop's Transform option where it is possible to stretch one side of an image while foreshortening the other. I assume that's what's happening 'behind the scenes' in WJ except that in WJ the clever bit must be the proportional lessening of the effect as you come away from the Jovian equator. Perhaps it's broken down into the positioning of the main bands/polar regions - I don't know. I have also experienced the 'rainbow' effect you speak of where I feel that just a tad of adjustment would align the colours to produce a definite edge. Perhaps there's someone in our forum community that knows if the *.ims files can be converted to TIFFs or JPGs to enable us to do our own alignment in PS. Bud
  21. What with the appalling weather lately and the lack of any fresh material I spent a bit of time today re-processing some Jupiter images I took a couple of weeks ago with the ASI 120MM camera. This time I made a real effort to ensure I didn't rush the process especially at the WinJuos stage - making sure that the outline was correctly orientated with all 3 (RGB) images. Although this new result looks better than a previous attempt, I still think the registration could be better (tighter?) if I could manually slide/rotate the resultant 'measured' images. Does anyone know if that's possible to do ? Bud
  22. Nice one Stuart! You can tell the UK weather is not astro-friendly at the moment ... everyone is processing all their archive stuff and pretty good it is too. It'll be nice to see the night sky again.
  23. Hi James, I was also doing much the same thing last night with the 120MC and am also getting that faint halo effect around the limb. I don't think it's due to using hi gain because I also did some lunar images and see the same effect there at very low gain settings. I'm out tonight but shall have a good look my other test exposures from the last few nights to see if its there on the original avi files. Will be in touch soon. Bud
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