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Everything posted by johnfosteruk

  1. Nowhere near as rewarding as it was for Mr Tombaugh, I had software to do the blinking for me and knew where to point the telescope But yes, it is very satisfying.
  2. Not immortal, I don't like his stars. There's no doubt its an amazing piece of work, what he's pulled out in the detail is tremendous but as I said, his stars... no.
  3. Very nice, nice to see the comparison between the L and IR as well.
  4. Nicely done SImmo, V2 is definitely an improvement.
  5. I'm working on a mosaic covering a region that I love in Sagittarius using Slooh's 17" F6.8 and SBIG ST-10XME at their El Teide observatory. I love their 20" telescope, but It suffers with the wind so quite often your sessions are either a wash out with streaky stars, or the dome doesn't even open for the evening (They're considering some sort of shutter setup to raise the observatory walls 10 degrees which will help mitigate the problem if they go ahead). I've not collected anywhere near enough data yet but none of the domes have been open for the last three nights due to weather (You can't even escape it in the Canary Islands!) so I've had a play with what data I've got on one of the panels. The full mosaic will be 16x43' panels, covering the Trifid (M20), Lagoon, M8, M21, and the group of wee nebulae that sit to the west of the lagoon - IC6559, IC4685, IC1275 & IC1274. This is the Trifid, from 7x50s subs each in LRGB, processed with photoshop. I've done it a thousand different ways because I keep forgetting that I don't have enough data yet. i.e. I can pull out more of the lovely reflection nebula but I destroy the stars in doing so, and it really is hard to bring out the detail in these large sprawling nebulae and keep the background noise down. So, having done it a number of ways I've tried to combine the best of each. In the end I've kept the process simple, being concerned with colour rather than detail for now. I don't know if this is where the mosaic will go in the end but it's a start. Now, it appears tonight is a washout too, I might have a go at the M8 data I've collected so far now.
  6. Ditto, I get a quick Ha fix from here, gong and Slooh and that’ll do me nicely for now until the activity increases again.
  7. Yep, that's right. Hang on..... ?
  8. The niece, Jessica (Future Astronomer Royal) is coming, she's 12yo and will be very interested in the meteorites and rockets I'm sure.
  9. Excellent set of talks planned, looking forward to it and that's without the keynote! Although I am upset Mr Morris isn't doing the Lunar Geology talk again, I forgot about it last year!!! Hey ho maybe next year and another reason to give him grief on quiz night Forewarned....
  10. This one from the early hours of yesterday morning. No real processing, just levels adjustments to bring out the tail. Captured with the half metre telescope at Slooh's El Teide observatory over 3.5 hours
  11. Astrometrica didn't match them to any known objects in the MPC database. So I don't think it's an asteroid.
  12. That's what I was thinking. However Astrometrica doesn't seem to want to solve the images so I am unable to confirm it until I fix that.
  13. Let me run it through astrometrica and see if I can work it out.
  14. The data comes from Slooh already calibrated, the halo is due to my ham handed processing. I think it’s the effect of a layer mask involving a heavy Gaussian blur after not cropping out edge artefacts from registration. If I’m honest I pushed it past the noise limit hence the need for the layer which caused the problem. Hence it shouldn’t be apparent in future iterations with more data. unfortunately the Slooh TOS prohibit sharing FITS.
  15. This is the right place to put this isn't it? Imaging - planets (including dwarves) Captured over 2 nights at Slooh's observatory on El Teide, it would have been 3 but wind scuppered the middle night.
  16. Outstanding image, how many frames did you stack?
  17. This is compiled from a quick batch of data captured using two of Slooh's rigs on El Teide. The gear used was an 85mm Televue Refractor + SBIG ST-10XME and their 432mm Corrected Dall-Kirkham + FLI PL16803. From each rig I had 3x40s L and 3x20s R, G & B. So that's 6 minutes total exposure. I plan to capture lots more data, reprocess and compare.
  18. Wonderful to see her receiving recognition, and wonderful to see such a selfless donation for the betterment of humanity. Bravo indeed.
  19. Looks like where the side of the bit has caught it to me.
  20. This 370x820 metre asteroid was expected to reach closest approach to us at 4.7 million km on 3 Sept, at 10:09UT, reaching magnitude 14.9. By the time I got around to scheduling Slooh's 17" telescope to try and track it, there were no slots available at that time so I scheduled 12 captures for the 2nd instead. The asteroid was at mag 15.3 at 20:51UT when this frame was captured, and as it's shifting at a fair pace I didn't catch it in any of the other frames, having not thought about the FOV!. But I think I've confirmed it via a few sources. Despite what the daily fail would have you believe it posed no threat to the residents of Planet Earth
  21. Seriously something wrong And you're absolutely correct of course, but gradientxterminator is a fair compromise if the OP uses Photoshop.
  22. Olly... recommending PI... what’s going on? I’m confused.
  23. This is just for fun more than anything. Somebody in another dark corner of the web suggested he thought the tail might be curved. So I stretched the living daylights out of the comet luminance layer (the result of aligning on the comet and stacking with kappa-sigma) I've overlaid what I think is the curvature.
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