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Rob63

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Everything posted by Rob63

  1. Images from yesterday a nice Filaprom and an "Ear" shaped faculae. ED120 (stopped down to 100mm), 2" Baader UV/IR Cut, Quark chromosphere and ASI174MM
  2. My favourite trio of lunar craters at first quarter very close to the terminator. 3 panel mosaic taken in less than ideal conditions before a deep sky session this weekend. ED120, 3x Teleview barlow, ASI290MM and Baader 2" IR pass filter
  3. This was interesting to process, I have always found M33 such a messy galaxy, really needs to tidy itself up a bit 😀 Processing info, below image. Pixinsight Combine RGB via pixelmath DBE Balance channels with HistogramTransformation Starnet Multiple small stretches with HistogramTransformation on both stars and galaxy images Export to Photoshop Galaxy layer multiple rounds of copy layer, curves, mask, copy merged to new layer Combine Galaxy & stars Back to PI Combine Ha+RGB via pixelmath - I wanted to keep Ha subtle (that's the way I like it) Export to Photoshop again Adjust contrast, colour and saturation to taste Flatten and export
  4. Shot during the recent full moon to get the best of the extensive rays around Kepler and Copernicus. ED120, Teleview 3x Barlow and an ASI174mm with 2" Baader IR pass filter. Processed via AS3! and photoshop
  5. Thanks once again to FLO & IKO for this opportunity to work with quality data as the awful weather continues to dominate in my part of the world! Processing information below image. Each channel DBE Balance channels with HistogramTransformation I like to try something different each time I process an IKO image and this time I used PixelMath "Dynamic narrowband combinations" to combine as SHO (based on the post at https://thecoldestnights.com) Multiple small stretches with HistogramTransformation then a MaskedStretch Remove magenta stars with pixelmath SCNR Starnet Stars layer For the stars, I used several Small stretches via HistogramTransformation to keep them tight with good colour. I opted to keep Gamma Cass big and bright as it's a key part of the composition for IC63 PhotometricColorCalibration for star colour and background neutralisation (narrowband mode) Export to Photoshop Combine nebula & stars Adjust contrast, colour and saturation of each layer to taste Flatten and export
  6. Thanks for the kind words, I really need to do more Lunar imaging as I found it so rewarding. DSO just seem to be an endless source of frustration at the moment.
  7. First time out this year as the weather in Edinburgh has been so bad. The Seeing was great but the moon was as 77% so Deep sky wasn't an option (apart from some Ha later on) so I decided to try some Lunar imaging for the first time in ages. These are all taken with my Sky watcher 120MM ED DS Pro with a Teleview 3X Barlow (f22.5) and an ASI290MM (usb3 version). Stacking in AS3! (1000 frames per capture stacked to 12%), Processing in Photoshop including Topaz DeNoise AI. Copernicus (4 panel mosaic) Montes Apenninus and Eratosthenes Archimedes, Aristillus, Autolycus and Cassini Aristoteles and Eudoxus
  8. Well done to all (Especially David), really enjoyed all the different versions/styles, really inspirational.
  9. A huge thank you to to FLO & IKO for this, weather has been awful here so was great to have some quality data to work with. Each channel DBE Small stretch with HistogramTransformation Starnet Create SuperLum using all 3 starless images Balance channels with HistogramTransformation PixelMath to combine as SHO HistogramTransformation MaskedStretch LRGB Combination using SuperLum Remove magenta stars with "Invert->SCNR->Invert" SCNR LocalHistogramTransformation Stars layer PixelMath to combine each channel (before starnet) for stars image Several Small stretches via HistogramTransformation to keep stars tight with good colour PhotometricColorCalibration for star colour and background neutralisation (narrowband mode) Curves (saturation) Combine nebula & stars with PixelMath Export to Photoshop sharpening (unsharpmask) Adjust contrast, colour and saturation to taste slight amount of Topaz DeNoize AI applied to darkest areas Rotate image to my preference for the best view.
  10. Thanks for all the kind words, my motivation is really struggling this year as the weather conditions are so bad, doubly so when you have to set up/tear down every time. I haven't seen too many SHO versions of IC405 and they are usually super saturated so I was aiming for a more subtle approach - no sunglasses required 😀 Rob.
  11. The Flaming Star nebula (IC405) Captured over several nights in September processed in the HSO (hubble) palette with RGB for the stars. I had intended to get more data for this, particularly in OIII but the weather hasn't been playing nice! I haven't had any clear nights for the last two months so I am going to call this done for now and return to it next season. Ha 2 hours 44min OIII 2 hours SII 2 hours 8 min RGB 1.5 hours Skywatcher ED80 + 0.85X reducer/flattener ZWO ASI 1600MM-Pro EQ6-R pro Astronomik 6nm narrowband and Deep sky RGB Filters Processed in Pixinsight and Photoshop
  12. My goal was to show the huge dynamic range captured in this magnificent data set of M17 using a “non-standard blend” to really highlight the main nebula and background nebulosity. A huge thank you to FLO & IKO for this, it's been nothing but clouds here. [Processing steps detailed below image.] Pixinsight Slight Crop to remove some stacking artifacts DBE (only a small amount of gradient to remove) Ha, OIII, SII => stacked as MasterLum Noise reduction and Deconvolution were not used as the data is so good Channels combined with PixelMath Red: Sii 80% + Ha 20% Green: Ha 80% + Oiii 20% Blue: OIII 100% Several small stretches with Histogram Transformation followed by a Masked stretch SCNR (2 x 25% with masking) LRGB combined with masterLum Starnet to remove stars and process separately HDR Multiscale Median Transform applied to main nebula with masking Stars layer Photometric colour calibration for background neutralisation (narrowband mode) Curves (saturation) Star reduction - Morphological Transform - 2 versions targeting large and small stars lower limit (Chris Woodhouse method) Export to photoshop several iterations of curves using layers, masking and blending Adjust colour and saturation to taste Unsharp mask Add stars layer (linear dodge(add)) over the background layer Fin.
  13. A huge thank you to FLO & IKO for this, it's been nothing but clouds here so was great to have something to work on. My goal was to create a classic Hubble palette version and show the huge dynamic range captured in this magnificent data set of M17. Keeping the green and aqua tones were vital in this image to really emphasise the richness of signal in all three channels. Pixinsight Slight Crop to remove some stacking artifacts DBE (small amount of gradient to remove) Ha, OIII, SII => stacked as Master Lum Noise reduction and Deconvolution were not needed as the data is so good Channels combined with PixelMath in classic Hubble palette Red: Sii, Green: Ha, Blue: OIII Several small stretches with Histogram Transformation followed by a Masked stretch I felt it was very important not to remove all the green as I felt this was a key part of the nebula showing the range of data where Ha and SII were both strong so SCNR was used at a very low level and with particular attention to masking. LRGB combined with masterLum Starnet to remove stars and process separately (N.B. lowered stride value to avoid artifacts) HDR Multiscale Median Transform applied to main nebula LocalHistogramEqualisation Stars layer Photometric colour calibration for background neutralisation (narrowband mode) Curves (saturation) Star reduction - Morphological Transform Export to photoshop several iterations of curves using layers, masking, and blending Adjust colour and saturation to taste Add stars layer (linear dodge(add)) over the background layer
  14. I have an Evostar 120ED with the sesto senso on the fine tune side of the focuser so should be similar. My step size is 575 (calculated using SGP's instructions) and this works well for me, giving nice V curves during auto focus runs.
  15. Love it, although it looks to me like he's set himself on fire !
  16. Lol, ok a teddy bear jumping over a fiery skull. thanks Pixies, it probably works well as a rorschach test
  17. Thanks Andrew, spooky indeed, maybe it's just me but I have never been able to see it as a teddy bear.
  18. Sharpless2-171 is an emission nebula which is part of NGC 7822, in the constellation of Cepheus. It is often called the "teddy bear nebula", however viewed in SHO with this rotation it looks (to me) like a screaming skull, or the head of the Balrog from lord of the rings! Perfect for Halloween. Ha 36 2hours 24min OIII 37 2hours 28min SII 38 2hours 32min Imaging camera: ZWO ASI1600MM Telescope: ED80 DS pro with 0.85x flattener Mount: EQ6-R Pro
  19. A huge thank you to to FLO & IKO for this, it's a rare treat to work with such fantastic data especially in OIII & Sii. I wanted this image to show the magnificent background Ha nebulosity with an RGB look while also using the SHO data to highlight the crescent 'bubble' in a complimentary colour so that it stands out while still looking natural. To achieve this I created two versions (plus a third for the stars) and blended them together. Full processing details are listed below the image. Pixinsight load Ha, OIII, SII Crop DBE slight Noise reduction - MultiscaleMedianTransform (MMT) Ha, OIII, SII => stacked as Master Lum Crop DBE slight Noise reduction - MMT Deconvolution Histogram Transformation Masked stretch Channels combined with PixelMath, I created three versions, detailed below. 1st image - Background Nebulosity For the background: The goal was to keep this as an RGB style rich red to show off the Ha nebulosity. Histogram Transformation Masked stretch SCNR LRGB combined with master lum Starnet to remove stars and process separately (N.B. lowered stride value to avoid artifacts) 2nd image for crescent 'bubble'. The goal here was to create an SHO version to provide a complimentary colour so that the crescent stands out (but doesnt offend the eye). Chose a "hubble style" blend to provide yellows/browns/golds and preserve the OIII shell as blue. PixelMath Red: Sii*0.35+Ha*0.65 Green: Ha*0.35+Oiii*0.65 Blue: OIII Histogram Transformation Masked stretch SCNR LRGB combined with master lum HDR Multiscale Median Transform to improve detail Starnet to remove stars and process separately (N.B. lowered stride value to avoid artifacts) 3rd image for stars (more RGB like) RGB mapped as SII Ha OIII Several gentle applications of Histogram Transformation Starnet to extract stars and process separately Photometric color calibration for background neutralisation (narrowband mode) SCNR Curves (saturation) Star reduction - Morphological Transform Export nebula and crescent to photoshop Blend images meet goals outlined above Adjust colour, saturation & contrast Check for starnet artifacts around brighter stars - fixed a couple of bright star halo artifacts with clone stamp Back to Pi Local Histogram Equalisation SCNR Exponential Transformation (PiP) Export back to photoshop Add stars layer (linear dodge(add) ) over the "background and crescent" layer Any final tweaks Merge and save Rob.
  20. And just for interest, a starless version (via starnet++)
  21. M27 The Dumbbell nebula in Ha & OIII (HOO). I gathered around 4 hours of data gathered while getting the scope ready for the new season and testing everything still works (one dodgy usb cable needed replaced). R (Ha 100%) G (Ha 35% + OIII 65%) B (OIII 100%) Really happy with it for such a limited amount of data M27 is one of the first things I ever took a photo of in the 1980's (on Film !). I will be returning to it for more data and some RGB for the stars. Sky-watcher ED120 DS pro + 0.85x flattener on an EQ6-R ASI1600MM Astronomik 6nm Ha & OII filters Processed in Pixinsight, tweaked in Photoshop
  22. It's pretty simple especially for DEC. DEC: Loosen the 3 grub screws around the weight bar collar (hemisphere where the weight bar comes out) then loosen the dec axis by rotating the collar anti-clockwise. Loosen enough to get free movement but not so much there is any movement perpendicularly (i.e. in the direction along the weight bar). Then tighten the grub screws again. I used the same principle for RA - it's a little more complicated and I used Astrobaby's EQ6 stripdown guide to help. Remove polarscope (screws out anti - clockwise), it's retaining ring and then loosen the RA axis nut - note there are four (not the three there were on the EQ6) grub screws. Then as before turn axis anti clockwise to loosen a bit (some peole have trouble with this as it can be very tight - mine waasn't) and then. re-tighten the grub screws and reassemble. Dec stiction adjustment was far more important for me.
  23. Remote desktop for me as well, far better than Teamviewer and I can easily (and reliably) connect to my PC with my macbook pro or iPad
  24. The first sunspot I have seen in ages (AR2765). I really had to fight strong winds, the clouds and several rain showers for brief glimpses but it was worth it. Captured with ED120 scope and Lunt Herschel WL wedge. ASI290MM camera using Baader solar continuum filter and 2x Barlow (Which needs a good clean).
  25. Made a solar finder out of a spare skywatcher finder-scope using the pinhole camera principle. Removed lenses, covered front with foil and added a pinhole with a needle. Held in place With elastic bands (could use something more permanent but this is very easy to replace). The lens cap still fits over the foil for protection when not in use. On the rear I used some kitchen parchment taped to the inside of the adapter that holds the “eyepiece stalk” and added a crosshair. Pinhole projection gives a solar disk about 3-4mm and whole thing is adjustable as per the normal finder-scope. Tested yesterday and works a treat, I can now get the Quark on target without having to use the WL wedge with 25mm then 8mm to get it aligned first.
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