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  1.  
    Posted By: aber0derA Moon.


    Being serious for a moment: In digitally overexposed imagery, the data is pretty much lost. But underexposures can often be worked with digitally. So your moon shot might be a lot better if you could control the exposure manually and place the middle of the illuminated area in, say, Zone 4. This will make the blacks much blacker and should reduce the data loss due to overexposure. Then the raw image data can be "stretched" so that what was originally a small range of contrast becomes wider, and "curved" so as to place desired portions of the image into proper exposure Zones, along with color correction and enhancement.
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      CommentAuthoraber0der
    • CommentTimeJul 12th 2019 edited
     
    This was shot on AUTO and without a tripod. Made 5(edit:14) exposures and picked the least blurry. No post processing other than cropping*.

    But I may try getting a better result. I would probably record a short sequence of video and run the frames through an image stacking software.

    *And desaturating (sorry)
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      CommentAuthoralsetalokin
    • CommentTimeJul 12th 2019 edited
     
    Planetary photography usually is done that way, but everything I said above still applies for the raw video, especially for a very bright high-contrast object like Luna. Underexpose and let the software pick it back up. Overexposure is lost data.

    I use RegiStax for planetary video frames and DeepSkyStacker for long-exposure deep sky images.

    I'm looking forward to seeing what you can come up with!
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      CommentAuthoraber0der
    • CommentTimeJul 16th 2019
     
  2.  
    Space is Weird | The Cartwheel Galaxy
    https://www.youtube.com/watch?v=OIf78aX00kY
  3.  
  4.  
    Turning Earth Into a Telescope | The Terrascope
    https://www.youtube.com/watch?v=jgOTZe07eHA
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      CommentAuthoralsetalokin
    • CommentTimeAug 2nd 2019 edited
     
    Posted By: Andrew Palfreymanhttps://www.forbes.com/sites/startswithabang/2019/08/01/this-is-why-black-holes-must-spin-at-almost-the-speed-of-light/
    It had not occurred to me before.


    They'll make one hell of a gyroscope then. Might cause problems for a craft using one for propulsion.
  5.  
    On the contrary - it makes Kipping's Halo Drive maximally effective!
    - of course, one has to approach from the correct direction relative to the spin vector.
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      CommentAuthorTrim
    • CommentTimeAug 2nd 2019
     
    Posted By: Andrew PalfreymanTurning Earth Into a Telescope | The Terrascope
    https://www.youtube.com/watch?v=jgOTZe07eHA


    Great thanks a lot.
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      CommentAuthorTrim
    • CommentTimeAug 2nd 2019
     
    Do all black holes spin in the same direction?

    https://uk.answers.yahoo.com/question/index?qid=20110326195705AA4bXpF html


    Damn obviously you can't have clockwise and anti clockwise in space.
  6.  
    Posted By: Trim
    Posted By: Andrew PalfreymanTurning Earth Into a Telescope | The Terrascope
    https://www.youtube.com/watch?v=jgOTZe07eHA

    Great thanks a lot.

    I think so. Reading the original paper shows that many devils lie in the details, but there appear to be no showstoppers.
    http://coolworlds.astro.columbia.edu/terrascope.pdf
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      CommentAuthorTrim
    • CommentTimeAug 2nd 2019
     
    Thanks again, astronomers should test it out with much cheaper cubesats first to see if there are any total showstopper's.
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      CommentAuthoraber0der
    • CommentTimeAug 2nd 2019
     
    ++'+
  7.  
    Posted By: Andrew Palfreymanone has to approach from the correct direction relative to the spin vector


    reminds me of a girl I knew in high school
  8.  
    Posted By: TrimDo all black holes spin in the same direction?

    https://uk.answers.yahoo.com/question/index?qid=20110326195705AA4bXpFhtml


    Damn obviously you can't have clockwise and anti clockwise in space.


    Sure you can. If the right thumb points along the spin axis in the positive direction, the fingers curl anti-clockwise as seen from the top.

    So all you need are giant thumbs and fingers and some way of determining the direction of the angular momentum vector.
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      CommentAuthorTrim
    • CommentTimeAug 3rd 2019
     
    But seem from the bottom?
  9.  
    That's rather an odd place for an eyeball ... for most people.
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      CommentAuthorTrim
    • CommentTimeAug 3rd 2019 edited
     
    People yes, aliens not
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