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Everything posted by MattJenko

  1. +1 for an addition to the finderscope. I use a Telrad and find it the best thing I bought for my 250px.
  2. I am making assumptions, but if the curvature of a system is severe, then a certain degree of tilt would push the furthest edges out of the flat zone (or area of even curvature) and subject one edge to a greater degree of curvature than other parts of the image. Given the level of tilt in a typical system to be in the order of millimeters from edge to edge in bad cases, then I would expect curvature differences to be induced thinking about it... Would have to be pretty bad tilt and large chip though unless we are talking uber critical spacings like hyperstar or really bad curvature like my Mewlon
  3. There is noise reduction, a TGVDenoise, although I did Lum mask it beforehand, as LHE is pretty bad for noise, even masked and needed something afterwards. I used only a bias for these as well in terms of calibration, so a little noisy to start with. I think I need to experiment with my workflows and it does seem that a switch to PS for a couple of actions might benefit me too.
  4. Thanks - I had a feeling I would need to dust off some PS skills, or more likely learn new ones It does look a bit soft and I think my guiding for some of the subs is not optimal either which might have contributed. This appears to be when the scope was pointing straight up, so think my little HEQ5 wobbled a bit between gear cogs for about an hour or so. Hopefully more data and being more choosey with the stacked subs (plus better processing) will crispen it all up! Not going to get a chance for a few days, so will ponder my shortcomings...
  5. It is indeed CCDInspector. If you are doing lots of fiddling about with flatteners, spacing, focuser changes, collimation etc etc it saves a LOT of time and effort.
  6. Thanks Neil. I admit to being a little dependent on HDR and LHE in PixInsight. Must broaden my horizons for this I feel.
  7. Nice. Not sure I even have a telescope that can cover this camera
  8. Its probably more my slapshot processing as opposed to focus (I certainly hope so). I have had difficulty getting autofocus routines to work with this setup, so eventually I used a Bhatinov Mask. Given I am going to try and get lots of data, there won't be much need for non manual focusing anyway. Thanks - one of the hopes of this thread is for me to pick up some pointers on the processing side, as I an RUSTY! I currently only use PixInsight, but want to know if I am missing a trick with my processing here, as I think I am in a bit of a rut when it comes to PI. I have Warrens book and should probably explore more and this project should give me ample practice. As a wise man said perfection only comes from perfect practice, and I am far from that.
  9. I have decided to take a close look at the Bubble Nebula. I have a secluded spot near the house which has a decent view of North, so using that area for now. I plan on updating this thread as more data gets added, so I can track my progress, as I intend to get as much data as I possibly can on this over the next few months, or until it drives me mad. First session was one of those where everything was a struggle. Guiding, focusing, everything and then just as I finally managed my first sub, clouds rolled in. Couple of nights later, I managed to get setup in twilight and despite a disaster of a meridian flip, managed a good solid set of 20 min Ha subs. So here it is to date. 17 x 20 min Ha. Planning on a lot more Ha and a whole host of LRGB as well, as I am thinking natural colour image, but who knows where this will end up. RC6, Atik 414ex, HEQ5. Chroma 3nm Ha. Comments and suggestions welcome.
  10. just basing this off your uploaded jpg, but in addition to some tilt, there is a good degree of curvature offset from the edge compounding the issue:
  11. Chania is at the northern end and all along the north coast there are lots of holiday places, and that mean lights. If you can get inland in the mountainous areas, you will see some stunning skies. I went to Crete a few years ago and stayed down the south east coast side where it is less populated and it was spectacular. I managed to take a little StarAdventurer for my DSLR to take some milky way pictures and they came out amazing (to me). 2 weeks and not a single cloud. Setting up in shorts and t-shirt - epic.
  12. Refractor/cassegrain telescopes will generate an image that is upside down when used without a diagonal. When a diagonal is used the image will be the right way up, but backwards from left to right, so not rotated, more like a mirrored image. A newtonian will show things upside down, something which caused endless amusement out camping when looking at a field of cows on the opposite side of a valley once. This information can be plugged into Stellarium when you enter in the details of the telescope for the Occular plugin.
  13. What I do is platesolve. You can connect something like Stellarium to the ASCOM simulator telescope and then use something like APT or AstroTortilla to do the platesolve, with nthem connected to the simulator as well. This tells you where in the sky you are pointing and you can fine tune knowing exactly where it is you are and how far away from your target you want. I also use a ball/socket to make things easier sometimes, but find I don't often have to. Not quite your #5, but a manual variant. Matt
  14. Thanks, been mightily impressed by John's work with his. I do have one of the CCDT67 reducer/flatteners, but don't fancy using it with this particular scope. I have other setups which hit the focal length that would give me, and I am more interested in 1m+ imaging with this one. Also, I am saving up for a high res spectroscope, which will end up on this scope for starters and yet more learning, so want to master it as a full mirror system first. I do think it has a lot of potential for all kinds of imaging uses, just find the amount of time I get to spend trying things out to be limited, with health and other circumstances, so hoping to get some tips on pushing the pace of improvement
  15. I am making some rather slow but steady progress with my 6" RC I think. Having gone a few iterations of various collimation processes, I think things are close enough that other considerations are now the ones that need addressing. I do not use a focal reducer, so this is native. I am struggling with focus, in terms of attempting autofocussing, where I think I keep getting step size and exposure time wrong and autofocus routines struggle with consistency. Maybe an up close and personal OC is not a good option, but I thought it would be. Also, I have some tilt which needs addressing, but with such a tiny chip (Atik 414ex), I was hoping to dodge most of the curvature/title issues, but think those beasts needs confronting. For those RC users out there - how do you guide? I am using an ST80 top mounted which has worked for refractors for me before, but a mirror based long FL system? Another question to you all, a bit more philosophical. How do you know when you are approaching the best you can do, when you just have to admit that you can't do any more and maybe time would be best spent on something else? M52 : 15 x 2 mins RGB. RC6, HEQ5, Atik 414ex. PixInsight.
  16. From what I understand, there is quite a bit of solar observing done there, so that makes it pretty easy to place masts without impacting the observations.
  17. Whilst scanning the mountains from my new house in France with some binoculars, I noticed something glinting in the far distance. I set up my AA115 on the front stairs and lo and behold! Seems like a road trip is on the cards soon - The Pic du Midi observatory.
  18. Hi Rob, bit late to this, but I have the AzEQ6 as well and it is quieter than the HEQ5 I had before I did the belt mod, and compared to some AVXs I know, it is much quieter - more a high pitched whine as opposed to the gear crunch. I wouldn't lug one with a C8 attached very far though. Its manageable I reckon, but awkward. Get it set up in Az mode and do EAA with the RC and visual with the C8!
  19. If you are happy for it to be almost at ground level, I found the Berlebach mini to be perfect for mine. I think it would find it tricky to buy a scope with just a tripod and if you could, it would limit your scope choices hugely, so I bought the pieces all separately.
  20. No-one has mentioned the Gemini ones yet: http://www.geminitelescope.com/robotic-observatory-telescope/ Matt
  21. Agreed on getting the calcs right, my initial thoughts come from a caravan power consumption online calculator :). You have made my original dilemma harder though by removing what I thought would be an additional complication in having the roof only move though...
  22. Sounds very doable then with both options - 10 Batteries? What power are they and did you calculate it or just go BIG? I was thinking heavy duty 100Ah+ ones and possibly 3 of them for a 2 pier setup according to my very crude napkin calcs and an equivalent 3 175W panels...
  23. Hi All, I now have the ability and chance to create myself a permanent installation after years of setting up and tearing down. I have a section of garden which is not too tree obscured and while it is far enough away to be dark, it is also too far away for electricity, so thinking of solar powered and battery operated. However, my big question is roll off or roll away. Space is not a huge concern and I am planning on 2 piers, or a pier and space for a heavy tripod based setup. In a rollaway, everything is rather straight forward it seems and all the panels on the roof/batteries etc simply move with the shed, so nothing complex for a DIY novice, which I most assuredly am. What advantages does a roll off roof give over a full roll away setup, and is wind protection really that important and done well by a roll off roof anyway? Cheers Matt
  24. Original image in this thread seemed far too bright once uploaded, so here is a muted version
  25. Little village called Saman, down the south west of Haute-Garonne.
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