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Our Beautiful Universe

  1. Jul 25, 2017 #261

    davenn

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    yeah, all the time as with that photo I posted above

    the usual way is just to do a string of timed exposures, as Marko did
     
  2. Aug 9, 2017 #262
  3. Aug 16, 2017 #263

    Andy Resnick

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    Back from vacation, busy doing class prep. It was cloudy every night, so I ended up making timelapse 'videos', here's two of them: one frame was acquired every minute, starting around 6pm and going until I passed out around 2am

    A good one, managed to hold a constant exposure during an illumination change of 24 stops:


    The best one- see the (near) full moonrise, a thunderstorm, lots of activity.


    Enjoy!
     
  4. Aug 17, 2017 #264
  5. Sep 11, 2017 #265

    Andy Resnick

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    5 hours of viewing (400/2.8 ISO 640) over the past 2 weeks:

    4h_31m_filtered_zps1rn16a3f.jpg

    not bad!
     
  6. Sep 12, 2017 #266
  7. Sep 19, 2017 #267

    Andy Resnick

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    A few images of the starfield in Cygnus: the first one is about 3 fields of view at 400mm (full frame) covering most of the North American nebula and the second is the veil nebula, nearly filling a single field of view (at 400mm). The density of stars is really striking.

    ttom_corrected_filtered%20-%20dark%20spot%20top_corrected_filtered_fused.tif%20RGB-1_zpswz8wnncd.jpg

    5h_6m_filtered_zpskpcswuya.jpg
     
  8. Sep 19, 2017 #268

    davenn

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    very cool images mate, well done :smile:
     
  9. Sep 22, 2017 #269

    1oldman2

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    A cool shot of Jupiter on NASA's image of the day.
    pia21966-1041.jpg
     
  10. Sep 26, 2017 #270

    Andy Resnick

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    Great ISS flyover this evening:

    DSC_2200-1_zpsmsbgibww.jpg
     
  11. Sep 26, 2017 #271

    ISamson

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  12. Sep 26, 2017 #272

    ISamson

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    saturn-in-eclipse.jpg

    Cassini's picture of Saturn with the Sun behind Saturn
     
  13. Sep 26, 2017 #273

    ISamson

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    acf4e9c8ebe7153d072f26dce0931ee1.jpg

    Predicted view from the moon Titan.
     
  14. Sep 27, 2017 #274
    Very nice!

    Meanwhile, no satellite, no flyby, no animation, no photos, no video, no NASA tech crew - nothing but birding binoculars and naked eye; but as a total beginner I was pleased to get my own first-time view of Saturn last night, a very bright dot just below and to the left of the equally bright waxing crescent moon. The dot really did seem gold in color; I thought this might be my imagination until I looked it up.
     
  15. Oct 2, 2017 #275

    sas3

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    Nice what setup did you use
     
  16. Oct 2, 2017 #276

    davenn

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    who are you referring to ??

    if you dont quote the post you are responding to you are not likely to get an answer to your question
     
  17. Oct 2, 2017 #277

    sas3

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    Let's try that again...

    Nice what setup did you use
     
  18. Oct 2, 2017 #278

    Andy Resnick

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    Nothing fancy- my telephoto lens (800/5.6) and a tripod. TIF images acquired @ 1/1600s, ISO 800. No mirror lock-up, etc.
     
  19. Oct 3, 2017 #279

    1oldman2

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    osiris-rexearthmoon_rotated2.jpg
    Some notes on perspective, :smile:
    https://www.nasa.gov/feature/goddard/2017/osiris-rex-snaps-pictures-of-earth-and-the-moon
    "This black-and-white image of the Earth-Moon system was captured on Sept. 25, 2017 by NavCam 1, one of three cameras that comprise TAGCAMS (the Touch-and-Go Camera System) on NASA’s OSIRIS-REx spacecraft. At the time this image was taken, the spacecraft was retreating from Earth after performing an Earth Gravity Assist maneuver on Sept. 22. Earth and the Moon are shown 249,000 miles (401,200 kilometers) apart, and the spacecraft is 804,000 miles (1,297,000 kilometers) from Earth and 735,000 miles (1,185,000 kilometers) from the Moon."
     
  20. Oct 6, 2017 #280

    ISamson

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