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Found 52 results

  1. I've just bought a Daystar Solar Scout 60mm DS for H-alpha imaging of the Sun. I am now looking for a suitable camera to use with it. I know I could use my DSLR, but for H-alpha that is not going to give best results, so am looking for a dedicated monochrome imaging camera. I have identified the ZWO ASI178MM as a possibility that fits my budget and has a large enough (I think) sensor to image the entire Solar disc if I use a 0.5 focal reducer which will give me a total focal length of 465 mm. Does anyone have any experience of this camera in this application, or know if it will be suitable? I know it does not have an IR blocking filter, which I understand is an advantage for H-alpha. The spec is available here: https://www.rothervalleyoptics.co.uk/zwo-asi178mm-usb-30-monochrome-cmos-camera.html Thanks Mandy
  2. Hi all. I am looking for a zoom eyepiece to 60mm lunt. My first choices are Lunt zoom and Pantax smc xf zoom. Which will work better? Can you have any other offer? You could say something more about these eyepieces while observing h-alpha?
  3. I bought this filter about one year ago with the aim to protect both my Tak-100 DF and a Quark eyepiece which eventually I never bought. Therefore, I am selling it, hoping that it will go to a good home and be used as it deserves. It is a top quality Baader ERF for solar viewing with Quarks. It is in excellent condition and comes complete with housing measuring 146mm. The previous owner used to fit it on an Altair 115mm F7 refractor. With some minor modification (essentially adding some padding to the internal side of the housing) it can be fitted on many other telescopes. It cost £550 but selling for £320 including postage. I will accept PayPal (pay as a friend) or direct bank transfer. Also advertised on ABS. Thank you for looking, Piero
  4. 2 pictures of M97 and the cyngus wall in h-alpha, 7nm, 10" scope. 8x 8 min for both. The owl was taken on 26-4-15, and the wall was taken on 12-5-15........
  5. Just had the LS35 out, and spotted a massive arc on the eastern limb. Almost touching it is a semi-detached mass of plasma on its northern side. Near the centre of the disk a large mass of bright plage is still visible. SOme smaller proms can be seen on the western limb. Not a bad start to International SUNday. I am still being bugged by some cloud drifting in from the North Sea, but hopefully I can set up the EQ mount and do some imaging, or maybe do some sidewalk astronomy in H-alpha and white light with the dual-mount bar
  6. Another try from the same night as M8, this time M16 Eagle Nebula in H-alpha, 7nm filter attached. It came out really nice I think.. Scope: Skywatcher EVOSTAR 80ED DS-Pro Mount: HEQ5Pro Camera: QHY168C Filter: Baader H-alpha 7nm Guiding camera: ZWO ASI120MC Guiding scope: Panagor 400mm 16x200s exposure/ 53min total at -10°C binning 1x1 Clear sky! Mariusz
  7. The bright thing in the sky appeared again. So I shot it. Baader CaK + ND5 filters, DMK41, Canon 100-400L Sun 20120721 Ha by Crestie Crazy, on Flickr DMK41, Celestron X-Cel 2x barlow element, Coronado PST Trying avistack for first time today so both stacked by it. Wavelets applied in Registax 5.1, finish in PSE9. Both files were just over a minute for over 1000 frames each. I have no idea what I'm doing in avistack but have now found the full auto mode. That'll do for now! This is now my best ever detail level in H-alpha. Still got a LOT more data to go through! Will concentrate on the Ha data, due to field of view limits with the barlow, I have to do the sun in two halves. So I've got two sets for prominences and another one for surface to go, then the nightmare of blending it that I never got working well... The CaK data still isn't sharp... in part this might be reaching the limits of the 100-400L and I need to get a bigger scope on the job, once I've ordered the appropriate mounting bits.
  8. I'm selling my 1.25" baader H-alpha 7nm filter. I purchased it on amazon several months ago, but have never actually used it, as my CCD didn't work. (Its just been put in a filter wheel but never used!) As such it is in perfect condition. Price £75 including delivery to a UK address. Payment via Paypal (buyer pays fees), Paypal friends, or bank transfer Any questions, please ask.
  9. From the album: 2015 Various

    recently found a cheap 16ic mono - a little old and kernakkered but does the job :) A stack of 7 or 8 subs of 300s 400s and 500s (kept increasing exposure length once good tracking had been established)
  10. From the album: DSO, Nebula, Galaxies, Comets etc

    The result of one of my imaging sessions from Kelling Heath Autumn Equinox star party NGC 7635 The Bubble Nebula in Cassiopeia Imaged using Atik 314L monochrome CCD camera and William Optics FLT-110 refractor on NEQ6 Pro SynScan mount 10 x 300 second subs in H-alpha

    © vicky050373

  11. i was wondering if anyone had any experiences with the idas uv/ir and the idas uv/ir ha enhanced. Any advice would be appreciated about which one to use with a full spectrum camera.Thanks!
  12. Heres my version of NGC 7000 and the Pelican nebula, taken back in 2015, through my William optics zenithstar 70ED with focal reducer. To fit it all in I did a 4 pane mosaic. Think the subs where 15 x 6 mins for each pane..........hope you like.
  13. Managed a bit of further processing on data captured on holiday - this field of view is something I would really struggle with at home (it's 9 degrees lower, and doesn't rise above my roof from my garden!) - a widefield of the Eagle (M16), Swan/Omega (M17) and M18, as well as a lot of HII in the surrounding areas. The HA filter helped a lot in cutting through the atmosphere - it's not fantastically high from the site we were at, and I still had to have a couple of nights at it dodging the trees. Details: QHY163M + Canon 200mm f2.8L (@f3.85) + Baader 7nm HA filter, mounted on a Losmandy GM8. Exposure 2h50m in 5min subs. Binned a few subs as they were of poor quality. Processing in PI. Thanks for looking At 50% resolution: Partially annotated version (lots of unmarked catalogues not shown, and not sure why Sh2-47 is marked away from the actual object! :
  14. Captured the data for this image on Saturday evening with an ~85% moon floating around, but pleased with the level of data I managed to get here. Taken using ST2000XM, Astrodon 5nm HA filter, through FLT110 at f5.6. This was first run after summer with a new adaptor between the drawtube of the FLT and the FLAT4 reducer - works brilliantly as it eliminates play found in the 2" nose/adaptor as before, and also reduces the vignetting as well. Exposures were 11 x 1200sec with APT; off-axis guiding with an ASI120MM and PHD2; reduction/processing in PI with final levels tweak in PS. So much background stuff here, I didn't bother with any DBE as couldn't really place the markers! Think the flats have worked nicely here though (tends to be less of an issue with backgrounds through HA anyhow). Thanks for looking!
  15. The Sun - H-Alpha light. 07-23-16 11:33am PDT Lunt 80mm Ha telescope ZWO ASI1600MM camera The light colored region around the 10 o'clock position is the sunspot active region AR2565-2567 that has created several large solar flares in the last few days. Inverted - Contrast enhanced to show prominences along the edge. Animated loop - This loop was created from 36 individual frames and loops forward and back continuously. Each frame was created from a short 250 frame AVI captured every 30 seconds. Each 250 frame AVI was stacked in AutoStakkart!2 and tweaked using Registax 6. The 36 individual frames were then colorized, layered and animation created in PhotoshopCC. 11:34:15 - 11:54:45am PDT.
  16. With old blobby back to normal last night I had a play with the Nikon D5100 Monotec + 7nm Ha filter and gathered 4x600s subs at 1600 iso with the Altair 115 EDT-APO. Processed in PI (calibrated, aligned, integrated etc) with a final tweak in PS.
  17. Hi all, Here are a couple of results from Saturday, July 20th. Amazingly complex and beautiful prominence on show...
  18. Top pic is my original process in December. 2nd pic is a reprocess I just did a moment ago. I've been refining my technique. The 1st was rather basic - align, stack, tweak, post. On the 2nd one was done a little differently, with colour separation done earlier on (H-alpha on bayer is never fun), improved gradient removal, and more aggressive star removal and bringing out the nebulosity harder. Caution: I know Picasa which I use to host these images re-compress the red channel rather badly so try not to look too hard at the jpeg artefacts. I'm also a little cautious if the low level stuff is real or just a side effect of my processing. From my notes at the time (December): The sky was kinda annoying tonight. It seemed quite clear of orange light pollution to the naked eye, but I couldn't see "deep" myself with for example not even the whole of the W of Cassiopeia was visible. H-alpha only data. Combination of: 14x2 minutes ISO1600 7x4 minutes ISO400 5x4 minutes ISO1600 Modified Canon 450D, Astronomik H-alpha filter, Zeiss 50mm f/2 makro.
  19. Managed to get out yesterday between showers. Was set up, imaged, packed away within 20 mins. Focus is off, I have discovered two dust bunnies, and my processing is not yet as good as others, but as it is my first, I'll love it forever PST, DMK21 600 frames @ 60fps 300 of 600 frames stacked. Colour layer in CS5. I think this is AR1515, can anyone confirm?
  20. GlassWalker

    Sun 2012091 Ha

    From the album: Sun

    Another day, another sun. My 2nd attempt at a mosaic. Overcooked some parts though...
  21. Taken on Sunday evening with a 98% Moon. Comprising of 12 x 600s subs using an ED80 with a 0.85x FF, an Atik 383L+ and a 7nm Optolong Filter. Stacked in DSS, and processed in PS. Full frame and cropped, mono and h-alpha colour using NC Actions. Thanks for looking Adam.
  22. I have a Meade 12 inch LX200 and since I'm getting old (84) missing sleep just ain't fun anymore...Sooo I am switching to solar..I will buy a glass H-Apha same size as aperture but it seems the 12 lets in to much light or something. Am studying like crazy on all things solar but am a bit foggy about the H-Alpha...Any help out there? Thanks Ken
  23. Managed to capture some H-alpha shots of the sun just after lunch. Some lovely detail visible in the big ARs which are predominantly in the western hemisphere. Right near the eastern limb, a pair of small, very bright spots were visible. I gather that two X-class flares went off in that area around that time, so I either caught the aftermath, or the start. I stacked the images with AS!2 (using flats created with Registax and ImageJ), did wavelet processing in Registax, made the mosaic in Autostitch64, sharpened the result with Fitswork4 using deconvolution, and used curves for pseudocolour with Gimp. Full resolution here. Without pseudocolour: Full resolution here. Without deconvolution Full resolution here. Pretty chuffed with this result, especially with the 35mm aperture of the LS35. I used the TV PowerMate 2.5x and DMK21 with Firecapture. Deconvolution really adds extra sharpness.
  24. While I was exploring the Sun disc looking for a good subject I found this small active zone next the limb, that was erupting, I decided to follow its fast closure with short captures, infact after only 10 minutes the event was ended. To build the movie then I added a second surge prominence I captured few months ago. As you can see also from the Earth scale, the sujects this time are very small events, like micro surge, spicules eruption, all watchable only on the edge of the disc with very fast capture and lower exposure respect to the filming of normal prominence. Usually they are burn and overexposed losing any details. You can also see plasma falling from the other side of the Sun. YouTube compression blur many of the details but I hope you will like it. If you enjoy the movie, click the like button or subscribe to my channel. YouTube Astro Channel
  25. A bit grey and miserable outside this morning so here's a full disc h-alpha mosaic from May 25th to brighten things up
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