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Our Beautiful Universe - Photos and Videos

  1. May 31, 2016 #76

    Andy Resnick

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    Now that I have PEC working fairly well, I'm able to acquire many more useful images- here's 40 minutes total integration time, with fairly strict thresholds for image acceptability based on DSS 'score' and 'FWHM':

    A small section of the total field, showing NGC 6207:
    40mRGB_zpso8jqqzug.jpg

    And a 100% crop, cranking up the saturation ('cuz I can...)

    40mRGB_2_zpsozaxm3fv.jpg

    Thanks to davenn for helpful hints...
     
  2. Jun 1, 2016 #77
  3. Jun 4, 2016 #78

    DennisN

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    Simply s-t-u-n-n-i-n-g...
    hs-2015-02-a-hires_jpg.jpg
    Page source: http://www.nasa.gov/content/goddard/hubble-s-high-definition-panoramic-view-of-the-andromeda-galaxy
    Full size image is here (click twice to zoom in order to see the enormous amount of stars as small pixels...:wink:)
     
  4. Jun 4, 2016 #79
  5. Jun 5, 2016 #80
     
  6. Jun 6, 2016 #81
  7. Jun 7, 2016 #82

    DennisN

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    Thought I might post this in this thread; a tool for those who are interested in making visualizations...
    Cosmographia Mission Visualization Tool (NASA)
    http://naif.jpl.nasa.gov/naif/cosmographia.html
     
  8. Jun 7, 2016 #83
    Thanks ! this looks interesting, have you spent much time working with it ?
    Just a quick note, while downloading this my Antivirus pulled a (Trojan-Gen-2) from it. This sometimes happens on certain legitimate software downloads so I'm curious to see if a critical piece will be missing when I try and run the program. I'll comment on that after I look into it further. :smile:
     
    Last edited: Jun 7, 2016
  9. Jun 7, 2016 #84

    Andy Resnick

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    First night imaging the Ring Nebula (M57)- seeing was very poor, I was only able to acquire 3 minutes worth of exposure. Full frame:

    3m.RGB-1_zpsbdiph2ob.jpg

    and 100%

    3m.RGB_zpsbqiawt8u.jpg

    Not enough exposure time to capture IC1296 (yet), but I can already easily see the central white dwarf.
     
  10. Jun 8, 2016 #85

    DennisN

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    No, I just got the link from a friend and thought I might share it here. :smile:
     
  11. Jun 8, 2016 #86
    I'm still playing with the program to see what all I can do with it, looks pretty cool. About the Trojan.Gen.2, I've decided that most likely came from my Granddaughter playing minecraft through her Steam account and my antivirus just happened to catch it while analyzing the site you posted. No worries :cool:
     
  12. Jun 12, 2016 #87

    DennisN

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  13. Jun 13, 2016 #88
  14. Jun 13, 2016 #89

    davenn

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  15. Jun 13, 2016 #90

    davenn

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  16. Jun 13, 2016 #91
    Last edited: Jun 14, 2016
  17. Jun 13, 2016 #92
    I mentioned in another thread not long ago a book from the early 80's called "From Quark to Quasar", basically a non technical but visually very cool study of scale in our universe. Lately whilst perusing the internet I came upon this link http://www.numbersleuth.org/universe/ which brought to mind the old Q to Q book.
    It's a very good lesson on perspective. :smile:
     
  18. Jun 18, 2016 #93
  19. Jun 18, 2016 #94
    http://www.space.com/33191-take-astronomy-pictures-with-mobile-devices.html = :thumbup:
     
  20. Jun 19, 2016 #95
  21. Jun 28, 2016 #96

    Andy Resnick

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    This time of year Cygnus is favorably positioned (for me). It's one of my favorite regions to photograph because of the star density- at 23 minutes of exposure time, stars fill in 3% of the sky. Here's 2 frames, one located at γ-Cygni and the other at the North American Nebula:

    g_cygni_11mRGB_zpszidan9pv.jpg

    dark_23m%20RGB_zpsmzniw1m6.jpg

    Each of these fields of view covers about 5 degrees (400/2.8 lens). A few 100% crops:

    NGC 6910 (Rocking Horse cluster)
    g_cygni_11mRGB-1_zpshttkr1g9.jpg

    M29
    g_cygni_11mRGB-2_zpspqgdifn8.jpg

    And a flicker of the crescent nebula
    g_cygni_11mRGB-3_zpshn6yksdl.jpg

    The dense dust clouds form interesting 'holes' in the otherwise dense starfield:
    dark_23m%20RGB-1_zpssmibielt.jpg

    Another interesting aspect of these images is that the size distribution of the stars, which is proportional to the magnitude distribution, obeys Poisson statistics- which it should, because thermal photons also obey Poisson statistics.
     
  22. Jun 28, 2016 #97

    DennisN

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    Awesome to look at those photos! :woot: . So many stars, so many places, so many things we can see/imagine being there (well, having been there :smile:). But we can only look, not visit and not touch... I'm getting poetic over here :biggrin:.
     
  23. Jun 28, 2016 #98

    davenn

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  24. Jun 29, 2016 #99
    Not currently, I do plan an "upgrade" soon and that is one of the main features I'm looking into, I'm currently educating myself to maximize the "bang per buck" on a limited budget.
     
  25. Jun 29, 2016 #100
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