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Everything posted by eshy76

  1. Thank you! I'm always nervous about pushing things too far, but in this case I worked only with global saturation and contrast, as opposed to trying to bring out specific colours, so hopefully I kept everything in proportion! Amazing diversity of colour, as you say, and the surprising one for me (as someone much more focused on DSOs), was the bright blue Aristarchus crater in the top left of the image, which turned out to be a thing, rather than my initial suspicion of a post-processing glitch!
  2. Hi everyone! I will throw my own colour moon image into the mix alongside all the excellent recent images! I've taken a similar type of image of a gibbous moon previously, but this is the first time I've shot a 100% moon in this way. I really am enthralled by the true colours of our original satellite! Shot using FireCapture, stacked using AutoStakkert! and post-processed in Pixinsight. 1 minute each of AVI video for Ha, R, G and B filters. Ha used as Luminance. William Optics ZS73, iOptron CEM25P, ZWO ASI1600 MM Pro and Astrodon filters. Higher res version here. Thanks for looking!
  3. Thank you for this - I also bought a relatively cheap (as far as this hobby goes!) dehumidifier which I stick on the tripod spreader before covering...I probably don't have a good seal as you, but I did also get the Telegizmo tripod cover (definitely not cheap!) so hopefully it should all be fine! I also want to get home in time to get some hours in on a 2-panel Jellyfish nebula mosaic - good luck with yours!
  4. Thank you! Exactly like you - my kit has been under a Telegizmo cover for the last week...looks clear tonight for a few hours, just hope I don't find that spiders have made a home in my ASI1600 when I take the covers off later!
  5. Thank you! My imaging time is being severely limited by the cloudy winter...but the show must go on!
  6. Hi everyone, The Cone Nebula lies about 2700 light years from Earth and, along with the Christmas Tree Cluster, forms NGC 2264. This object lies within the Monoceros constellation and is about 7 light years long. Also visible in my image close to the Cone is the Fox Fur Nebula. A notable image for me in that I tried a new processing technique for merging my Ha data with RGB and L. I used the excellent Light Vortex tutorial on this and this method makes it much easier to bring in the Ha, without unbalancing the star colour too much I hope, compared to some of my recent images. Used my usual setup - WO Z73 + iOptron CEM25P + ZWO ASI 1600 MM Pro + Astrodon filters. Total integration time 5.2 hours. Full details here Thanks for looking!
  7. Hi everyone, Another Rosette I'm afraid...this one has been in the offing for some time now. I originally shot the Ha in February and failed to get RGB data before the nebula vanished behind my trees for the year! Finally got some RGB between the clouds at end November! My second HaRGB image...have a feeling the Ha data is overwhelming the image to an extent but I'm still happy with the result. I pixelmathed Ha 70% into the red channel and 10% into blue before processing as an RGB image. 4.5 hours integration time. WO Z73 + CEM25P + ASI1600MM Pro + Astrodon filters. RGB data captured using NINA which I'm increasingly impressed with. Full details here Thanks for looking!
  8. Well done! I remember taking my first steps into guiding with the Lacerta MGen standalone guider...which was much easier than subsequently getting into PHD2! It's worth the investment though - I'm sure your first guided images will show the jump in quality straight away! And, yes - dither! APT makes it easy - you'll find a little checkbox somewhere in the Guide dialog and you can also choose to dither every x subs - dithering every frame is time consuming (guiding has to settle down each time), I tend to dither every 3 subs if I'm taking a stack of above 40 subs. Below that, I dither every 2 subs. That's just me though, I'm sure everyone has their own approach.
  9. Hi all, It appears I managed to somehow find some clear hours for some imaging during the otherwise total cloud-out round my way for the last 2 months! Some firsts here: First attempt at the California nebula. First HaRGB image....googled a lot and ended up blending my Ha data 70% into the red channel and 10% into the blue channel before processing as an RGB image (well, I extracted a synthetic lum after the combination). First time using NINA exclusively for the capture and being able to autofocus on each filter change made a lot of difference - possibly my most consistent set of FHWMs since starting this hobby. NINA is very impressive for a free piece of software. Usual hardware setup - WO73, CEM25P, Astrodon 36mm filters, ASI1600MM Pro. 4.5 hours of integration time over two nights (see what I mean by having to find a few hours in between the clouds!). Higher res version here. Thanks for looking and fingers crossed for some clear skies for all!
  10. Another reprocess during the current cloud-out...here I was going for a less overprocessed approach - less saturation, less sharpening...also added a nights' worth of new moon data using NINA for the first time, while culling some high FHWM subs. Lost some of the Ha detailing, but hopefully a more natural looking M31? High res version at same link as in the original post.
  11. Having been clouded out for the last 2 months, I've taken the opportunity to reprocess some of my images - for this image of the Trunk, I've gone for the classic Hubble palette instead of the green original. The higher res version can be found at the link in the original post. Thanks for looking!
  12. Thank you! This was a clear night during galaxy season where there was nothing else worth shooting with my widefield rig...so I went for it....processing was tough as I had seen the beautiful dust-laden shots of the Iris from better skies, so I knew what I wanted to see, but it was clear that I couldn't push the background too far... ...I love all the nice comments...slightly odd that I posted this in June but it looks like the thread was unearthed by someone in November! I'll take it of course!
  13. Thanks to everyone for the kind words...I think this is the type of target that I would need an obsy for in my light polluted skies...just letting the rig pick up the photons night after night to build up integration time. Alternatively a few hours at a dark site...
  14. Hi everyone...roll up...roll up....it's a "spend my money" thread! I am embarking on an attic observatory build, which I won't go into details on here - there's a thread on that in the DIY Observatories section. Anyway - a key part of this is that there will be a 1.1m2 sliding roof window in a loft, through which will unfurl my imaging gear. I currently have a iOptron CEM25P and William Optics Z73 which would fit through this gap perfectly well but.... ...I am thinking ahead to the inevitable mount and scope upgrades....the largest scope I would likely ever want for imaging is an Edge 9.25 HD, which is 55cms long and, I think, 26cms wide. And 9.5kgs in weight. I would need a sturdier mount for this in future, so my question is - which mid-range to premium mount(s) would be enough to wield an Edge 9.25 HD + imaging gear, while being compact enough to fit through (and potentially rotate in) a hatch in a loft? Including counterweight bar... So far, the mount I have found which seems to fit the bill is the Avalon M-Uno...the RA-axis being close to the OTA and a lack of counterweight bar makes it an early contender... I am seriously considering using a Linak DL2 type rising column to lift the whole thing through the hatch as a possibility. However, if the mount in question has a "turning circle" that would fit in that hatch, then I wouldn't need to go down that route. My Avalon thinking was inspired by the link below on critical rotating dimensions, kindly provided by @old_eyes in the obsy thread. Thanks in advance! All suggestions welcome! (Please no comments on hot air currents and vibrations - those warnings have been heeded!) https://www.blackwaterskies.co.uk/2013/12/observatory-planning-and-german-equatorial-mounts/#lightbox/2/
  15. Sorry, it took me a day or so to register exactly which part of the image you were referring to! Yes that structure was the most surprising part of the image for me - I hadn't noticed it before. It is very clearly apparent in Ha and that top right pane was the best in terms of FHWMs, which helps!
  16. Yes that's fair regarding the wall flat point, so definitely investigate the gain/download angle more before plumping for an expensive flat panel! On the pro, there is a usb speed setting in the ascom driver, if there is something like that for the cool, maybe you can try lowering that setting?
  17. Thank you very much Wes! I'm very pleased how it turned out, especially given some of the issues that cropped up during the capture!
  18. Thank you Carole! Mosaics are hard work...but very satisfying ultimately.
  19. Hi Tom, Could I ask if you are using an OAG to guide? The intruding element in the top centre of a couple of the flats look suspiciously like a misaligned OAG prism...I had this issue with my ASI1600 imaging train and fixed it using some shims to line up the prism with the long edge of the camera sensor to avoid darkening the corners/edges. Sorry I have no insight on the gain questions...however I was suffering from inconsistent flats issues a while back - then I noticed my LED panel flickering more than usual when the flats were being taken. I ended up getting a posher Artesky one where you can control the brightness, which did away with having to dim my panel with sheets of paper, etc...that also fixed issues I was having with artifacts appearing in my flats... ...I hope that helped narrow things down a little?
  20. Hi everyone! I shot this over the 4 night clear patch in mid-September round my way. This ended up being a challenging series of captures - two nights were disrupted by a windows update on my mini PC, seeing was variable, I messed up focusing on one night...and the moon was not great for OIII capture, like everyone keeps saying! Anyway, I was committed to a 4-pane Ha/OIII/SII mosaic - the Sadr region always looked so dramatic to me and I wanted to capture it, but I thought it would be a shame not to capture the Crescent nebula nearby, so I went for the mosaic! Processing was also challenging given the different quality of the 4 panes, which is why I'm posting this over a month after shooting. The colour mix I went with was my usual natural blend mix: R = 0.76*Ha + 0.24*SII G = OIII B = 0.85*OIII + 0.15*Ha Captured in APT, pre-processed and mosaic merger in APP, post-processing in Pixinsight. WO Z73 + CEM25P + Astrodon filters. 18.8 hours of integration. Full details and higher res version here Thank you for looking!
  21. Boom! I ask and the SGL community delivers....that is pretty much spot on what I was looking for - time to dust off the old A-Level maths and crunch some numbers...if the sphere of rotation works out, I won't need to spend on the rising column...although that looks like a solution could increase what I put up there. Thank you very much! I will keep updating the thread as progress is made.
  22. I will keep updating it as progress is, or isn't, made! After more hasty research (I have to move quite quickly on this), I am leaning towards a Linak DL2 motorised column approach....if I can get the whole kaboodle through the gap, then maybe the whole turning circle thing is irrelevant....? Park scope diagonally across hatch (1.1m squared is 1.56m diagonally)...open hatch...raise column...and we're away...?
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