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robertm

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Everything posted by robertm

  1. That's very nice Olly, but yes the core of 7331 does look a bit saturated on my (uncalibrated) monitor to. Also reminds me that I must finish off the one I took down at your place in September!
  2. That's quite an impressive start considering it's altitude and I'm surprised you got as many subs as you did. Robert
  3. Very impressive result, the mix of very long and very short exposures has worked really well.
  4. Very nice, I like the colours expecially.
  5. I'm just trying to get to grips with this myself after splashing out. It's a very powerful program but definitely an uphill struggle (though not if you leave everything at default settings). I'm getting there and the little snippets posted here help a lot - thanks very much! Robert
  6. Hi Paul, I use MaximDL V5 and that makes it a breeze. This is what I do... As TJ has mentioned - make sure the camera either doesn't move or you can align it rotationally to well within 0.2 of a degree between nights. Even if not this method will still work even if your images will be rotated compared to any prior sets. 1) Center a bright star in the finder scope so it's going to be on or nearly on the imaging chip. 2) Sync to the star in the Observatory whole sky screen. 3) Take a 5s exposure and plate solve it using Pinpoint Astrometry, go to the Observatory 'Telescope tab' then sync to the plate solved location. At this point the scope is sync'd and maxim knows where it's pointing. 4) Open one of your previous images, preferably the first in the sequence (especially if you've used dithered sub exposures) - keep that image open. 5) Plate solve it. 6) Right click on the plate solved image and select 'slew to pinpoint center'. This will slew the scope to your image location. 7) Take an image (5s exposure) and check you are in the precise location. If not then repeat step 3 - that will be because you aren't properly polar aligned. If you stretch the histogram then plate solve you can see your image in the Observatorys zoom tab (providing you switch that option on). A couple of things need to be setup the first time for the plate solve to work: 1) Set the right Epoch - 2000. 2) Have the optics set in 'site setup' and set the pixel size so the plate scale can be worked out. 3) Have a corrected version of the Hubble GSC for Pinpoint to use. I think that's it. Version 4 of MaximDL was good but Version 5 is a quantum leap in usability. I also use it with field of view indicators in the Observatory zoom to frame targets as often there's something else interesting that could included with a slightly different image center. Yes it is expensive but I consider it a worthwhile investment that saves me heaps of time. Anyway enough of my ramble... Hope that helps Robert
  7. Beautiful capture and very nicely processed and the animation is excellent. Great lens, what's the camera ? Robert
  8. That's amazing! Reminds me of my time on the Greek island of Samos with the astrotrac a couple of years ago but your result is just so much better. What a wonderful result. Robert
  9. That's a pretty amazing stacking let alone the final image... Robert
  10. Rich, the 383L has the same chip as the ML8300 so will have the same FOV. Just make sure you align the image with the same orientation ie. East-West. Note that it's a tight fit both N/S and E/W ! Robert
  11. That's really excellent, the Wizard is one of my favorite objects. I think I prefer the star colours in the second image though it's going to be difficult getting the colour balance just right what ever way you go. Robert
  12. Just noticed North is down, what a mistaka to makea ! Moonshane - The small nebula to the right is called Sh2-242 but it's not planetary, just a small Ha region. According to MaximDL there are two Planetary nebulae in the bounds of the image. 'K3-68' which is either invisible or looks like a star and the other called 'Pu1' which is a small fuzzy patch about 6-8 pixels across just over half way up the on the extreeme RH edge of my original. Robert
  13. Olly, That's makes a perfect vista with the double cluster. 80 mins per panel ... sigh ... I wish I had your skies at home ! Robert
  14. That's amazing for the London suburbs and especially North where you're imaging over all the grime. Robert
  15. Thanks for the kind comments. I aim to try to get many more subs on this when Auriga gets higher in the sky. Hopefully I can get some of the really faint wispy bits that don't even show on the negative version - well thats the theory ! Robert
  16. This is a very large and faint Supernova remnant on the Auriga/Taurus border. It's my second attempt at this but I wasn't able to get sufficient quality sub-exposures as dawn was approaching. I a bit early for this one really but worth a try. Taken as Les Granges. Field of view: 5.3 x 4 degrees which makes it a larger angular diameter than the Cygnus loop (Veil SNR) Capture details: Exposure: 5 x 600s Filter: Baader Ha 7nm passband Camera: Finger Lakes ML 8300 @-30C Optics: Canon 200L lens@f/3.2 Conditions: Clear but dawn light Sky Magnitude: approx 5.5ish Location: Les Granges, Haut Alps, Southern France Date: 5,8/9/2010 Guiding: Lodestar + converted 50mm finder TFL Robert
  17. Thanks very much for all the kind comments, I'm glad you like it. I'll have another go at processing this, with the full resolution luminance (don't ask). Robert
  18. That's a really excellent DSLR image Peter. 25 min exposures are very long; you were lucky you didn't catch any aircraft, I would have had 2 or 3 in that time Did you get any field rotation ? Robert
  19. That's a very lovely image and you've done a excellent job of keeping the detail in the NGC896 region. Last time I processed this area that part was the most difficult. Looking forward to the mosaic. Robert
  20. Was down at Les Granges with Fay and other members of the motley crew (Orpington AS) and would like to show one from that trip. This image shows the area between the new star cluster IC348 (top left) and NGC1333 (middle right) on the Perseus/Taurus/Aries border. The field shows an interesting array of dark/reflection and emission nebula. For those with that type of camera, the bright star in the image is called Atik (the shoulder). Getting an image like this from home would be impossible and from one of our monthly Deep Sky Camps would require a lot more subs. Thanks a lot to Ollie for his warm hospitality during our week. What a lovely place to visit for some peace, quiet and of course great skies. Field of view is approximately 5.3 x 4 degrees There seem to be some colour gradients but after a couple of processes this is the best I've managed. Capture details: Exposure: 22 x 300s Lum bin 1x1, 15 x 180s RGB bin 2x2 Filters: Baader LRGB Camera: Finger Lakes ML 8300 @-30C Optics: Canon 200L lens@f/3.2 Conditions: Very clear Sky Magnitude: approx 6+ Location: Les Granges, Haut Alps, Southern France Date: 5,8/2010 Guiding: Lodestar + converted 50mm finder Any processing tips gratefully received. TFL Robert
  21. That's really an excellent mono Ha image Fay, lots of lovely wispy detail in there and the background is not too dark either. Robert
  22. That's very nice Fay. I think you could possibly tease out some more of the dark stuff as your data looked very good. Robert
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