Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

Welcome to Stargazers Lounge

Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customise your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.

  • Announcements




Advanced Members
  • Content count

  • Joined

  • Last visited

Community Reputation

154 Excellent

About Ikonnikov

Profile Information

  • Location
    West Yorkshire

Recent Profile Visitors

623 profile views
  1. Thanks Sara! Not decided whether to do some oiii or lrgb to go with it but at this rate it's going to be a decision for next winter!
  2. No worries, enthusiasm is good! Looking at the two side by side makes me think I might need to bring my black point in a bit more... An excellent attempt for your first NB/Ha image! I have used some star reduction on my image in PI (and a strong dose of deconvolution) so this goes some way to explaining the reduced size/prominence of the stars in addition to the 3nm filter. If you can get your guiding good enough it would definitely be beneficial to up your sub length to 20 min or more with your KAF8300 chip (similar noise levels to the 16200 in my camera). Shouldn't be too hard at this kind of image scale as long as you're confident of getting a good polar alignment. Only other thing is focus (can be a pain with Ha), looks like it could be a tiny bit out (although that could just be the guiding issues increasing the star sizes slightly)? Paul
  3. Imaged with the usual gear (Tak E130D, G3-16200 and chroma Ha 3nm, PI for processing) over four nights but still only 9x30 min due to Yorkshire cloud. A mixture of average and very ropey seeing and a bit of moon thrown in on a few of the subs so not quite so crisp as some of my previous attempts with this kit. Not sure I've rung all I can out of this with the processing but was getting to the point where I found it hard not to blow out the brighter regions of nebula (including the tadpoles). Have avoided the (dreaded?) HDR wavelets so far but might be tempted to blend some into this version (especially if I can get the noise down with some more subs). As ever C and C's welcome! Paul
  4. I do like my E130D although it's been quite a trial to get the collimation, spacing and camera orthogonality right with a bigger chipped CCD, and once you factor in the Tak rings & finder, a decent losmandy plate and cat's-eye tools it's looking closer to £3k... Paul
  5. Thanks Graham and Adriano. I've had a quick go at reducing the blue halos with SCNR and clonestamp but I think a complete reprocess and some more/better OIII subs are probably in order to get on top of them.
  6. Thanks for the encouraging comments folks, looks like I'm going to have to tackle those halos with processing then (would be interesting to see how much some decent sky transparency would reduce them but it doesn't look like the weather's going to play nice any time soon!). Paul
  7. Thanks Richard and Mike!
  8. Looks good, dust is very nice. The reflection nebula part is a more intense blue colour in other images I've seen but I suspect it just needs more data to allow you to bring it out (even with the new CMOS technology I guess this this object always want more subs!). Paul
  9. Put together with a collection of Ha subs from the last couple of months of varying quality plus some OIII taken on a couple of hazy nights last week. A fairly quick process with a bit of a half-hearted attempt at rescuing the stars at the end. As ever c and c's very welcome! Paul Tak E130D, G3-16200, chroma 3nm filters on Avalon Linear FR. Ha 20x 1800s OIII 9x 1800s
  10. On a related note this reminded me of the following article: The gist being 'the paradox of automation' i.e. efficient automated systems (e.g. modern autopilots, nuclear reactor control systems etc) are likely to fail only in extreme circumstances which will accordingly require highly skilled operators to rescue the situation (but the skill of the operators is eroded by their lack of regular input due to high levels of automation). So the more reliable these computerised systems are the more dangerous they can be in the long run unless they are perfect!
  11. Looks excellent, keep going with more data if you can! Paul
  12. Thanks Paddy, a bit of a happy accident maybe with the final palette. Hoping for some haze-free nights to see if I can get some OIII subs without star halos (plus the whole OIII channel could do with a bit more signal being so weak here).
  13. Thanks, glad you like it!
  14. It's been an age since I've made anything other than mono images (a combination of incessant scope tweaking and lack of clear moonless nights) so since I've finally managed to get some both some HA and OIII for a target I thought I'd try a bicolour. The image comprises 9x30 min subs of both Ha and OIII (3nm Chroma) with my G3 16200 on the E130D/Avalon linear. Contrast is a bit lower than it might be due to effects of the full moon and poor transparency in a lot of the subs and I've probably overcooked it for the amount of signal present. I've not used any flats yet (to do list) and there still seems to be some vignetting in the corners despite judicious use of DBE. The brightest stars also escaped some masking and have gone a bit crazy, maybe I'll try to fix with RGB data if I can get some anytime soon. Any comments/advice on how to improve the image are very welcome Paul elephantprinttest2016.tif