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johnfosteruk

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Posts posted by johnfosteruk

  1. Captured with the Skymax 102 & Nikon D7000.

    25% of 250 still frames aligned in Pipp, stacked with AS!3. Deconvolution with IMPPG. Original image, then one with linear contrast added in PS, and another with more contrast again.

    This feels like a decent image to me, now I feel like I'm getting back into the Lunar imaging properly after a fairly long break. :)

    Click through to full size.

    Original

    118024690_Moon27-02-21.thumb.png.9d98294ac145b9e119595791f60da355.png

    Linear Contrast

    939000887_Moon27-02-21lincont.thumb.png.984a59247ee36c04e3e2afbdd9b3d2d9.png

    More contrast

    1571927326_Moon27-02-21morecont.thumb.png.25d907ca285e8e2db1e56f46f50351ea.png

    Then a little bit of fun.

    Annotated view

    1838230160_Moon27-02-21-annotated.thumb.jpg.f97fa2d48902fb72114dfae36397fafe.jpg

    Pseudo aerial view of the terminator.

    759684389_Moon27-02-21aerial.thumb.jpg.82dfdb6b47b539b929d2e0690c06425f.jpg

    • Like 11
  2. I had a really good visual session tonight, enjoying good views of some of the craters right on the SE limb thanks to favourable Libration. Seeing was a little poor at times but with patience there was lots of detail to be seen at 200x.

    So after I put the eyepieces away I captured some full disc images and then decided to put the Revelation Astro 5x Barlow between the D7000 and the Skymax and see if I could make a half decent image.

    Half being the operative word thanks to dust on the Barlow lens which shows up tracking across the final stacked image (thanks to capturing the surface drifting through the FOV then aligning in Pipp), but still, it's nice to have a record of this group of craters presented favourably.

    1988058059_SELimb.png.e0faec29f34590b9340ec17acec64ed0.png

    Also an annotated 'flyover' view thanks to LTVT

    1441473881_SELimbFlyoverview.jpg.b518f00daf30c7b2dbcc710d7e8f92d1.jpg

    A closer look at the same view generated using data from the LRO Wide Angle Camera, overlaid with Digital Elevation Model data for the same time as my image.

    957791030_SELimbDEM.jpg.5a8f0d2caf654de793a1a8a47a0a670a.jpg

    And a pseudo aerial view

    725311052_SELimbaerialview.jpg.6fb1330fa1aaef2270aa5b9f7acff1c1.jpg

    • Like 1
  3. Hi UkSpacenut. I've done this often, although I don't let it drift as much. I've use a Mak on an EQ3 mount so can carefully track it a little bit, roughly by hand. 

    My suggested workflow would be as follows:

    1. Use Pipp (Planetary Image Pre-processor - https://sites.google.com/site/astropipp/) to split your AVI files into segments, you can do a preliminary stretch (this will help in the next step) to set which range of frames to export, so with a bit of trial and error you can batch it all up into your separate avi files by eye. You are not aligning at this point, just splitting the file into your regions.
    2. Once you have your separate files for each region, run them separately through Pipp to align them using the solar/lunar close-up preset. This is why prelim stretch in step 1 is important, it'll help the software to do it's alignment. You can set what it aligns on with a little alignment box - choose a unique, high contrast feature (I've had mixed results testing to determine the best size box). Also, set your 'Region of interest' - the FOV you want to output. You can also tell Pipp to sort by quality (use the 'original' setting) and keep only the best 25%. Don't run this step as a batch, do an individual run for each file output from step 1 - because you'll need to change your ROI and alignment box for each set of frames. Also make sure you account for overlap (20% ideal) and the drift.
    3. Don't output the final, aligned images to AVI, save as SER files and install SER player from the same site. That way you can manually inspect the results, frame by frame, and bin any frames that could be problematic for Autostakkert/Registax/Siril when you come to stacking the results. (mainly looking for frames that jump around due to alignment feature errors - if there are too many, run it again, choosing a different alignment feature)
    4. Stack however you like.
    5. Use IMPPG (https://greatattractor.github.io/imppg/) to do some deconvolution and sharpening etc.
    6. Enjoy the fruits of your labour.
    • Like 1
  4. I haven't captured any lunar data in ages and with the daytime being so nice here yesterday I hoped for a nice clear evening so I could get back into it. Also, I wanted to test the D7000 as a Lunar imaging camera which I hadn't done yet.

    At about 9pm the skies were clear so I setup and waited for the scope to cool. An hour later I was raring to go and what do you know, there was a thin layer of hazy cloud.

    I went ahead and captured some data anyway and here are the results. Usual process (although I had issues with that as the latest MacOS update killed my windows virtual machine so it took about 5hrs to put that right so I could align and stack!)

    I hoped to add a Barlow to get higher resolution data, but by the time I'd captured this lot the clouds were coming in.

    Pipp>AS!3>IMPPG>PS

    Click through to see full size

    1275708452_Moon22-02-21V2.thumb.png.db8a2a83091625e8913f3be396710cca.png

    • Like 7
  5. 5 minutes ago, JamesF said:

    Apparently Elon Musk claims it saves them $6m per launch if they use recovered fairings.

     

    Worth the effort then. Although I must admit to being disappointed. How amazing would it be if the fairings had descent boosters, gridfins and landing legs like the first stage? :) That would no doubt blow the £6m saving tho..

  6. 20 minutes ago, JamesF said:

    Here we go:

    1755228537_Screenshotat2021-01-2600-12-48.png.6da7b1fb1ca1adb57e1b42d164c4248d.png

    About a third of the way up the left hand side of the screen, just coming into view from behind the first stage?  It looks as though it could actually be fairly close.

    James

    Timing. :)

    Downloaded from YT. Ran through VLC Frame buffer to output the frames, upscaled to 200% and made a GIF. I reckon you're right.

    Fairing.gif.7821cb915bd180706a2608582dc54160.gif

  7. 3 minutes ago, JamesF said:

    It's on the first stage image more clearly I think.  It's barely there for a second though, so I've not managed to get a screen grab yet.

    James

    Wasn't even looking at the first stage :)

    However, now I am, I think I see it but not clearly. There's something that looks like a flash behind one of the left gridfins. 

    Got it on quarter speed trying to get a grab of it now

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