Page 1 of 2 12 LastLast
Results 1 to 10 of 12

Thread: Pac man nebula - Comparison with old images

  1. #1
    Senior Member
    Join Date
    Jul 2008
    Posts
    10,689
    Post Thanks / Like
    Well last night was my first chance for some deep sky stuff for absolutely ages and the Pac man was flying high in the sky

    The trick to decent images is collecting loads of extra data and that means longer and more exposures, last year I took this which was 10 3 minute subframes at ISO 1600 (noisy)

    you can tell its pac man shaped if nothing else



    Last night I set up early as it was dark by gone 8 and took 4 hours worth of 8 minute subframes at ISO 800 then left the scope taking 4 hours of dark frames ( to remove the noise in the background)

    (looks better if you click to make it big) - I like the star colours the old red giant stars and the young hot blue ones


    Close up and processed


    Hope you can see the difference between the years

    Oh an cos Mick keeps asking this is what 1 of the pics looks like straight out of the camera pre stacking and pre subtraction of darks and offsets and pre processing

  2. #2
    Senior Member
    Join Date
    Jun 2008
    Posts
    15,494
    Post Thanks / Like
    wow!














  3. #3
    Senior Member
    Join Date
    Jun 2008
    Location
    North East England
    Posts
    13,464
    Post Thanks / Like
    Magnificent!

  4. #4
    Administrator keith's Avatar
    Join Date
    Jun 2008
    Location
    United Kingdom
    Posts
    21,078
    Post Thanks / Like
    Never ceases to amaze me
    Disney information? Try our online guidebook at http://wdisneysecrets.com
    Get your own Disney Countdown at http://toys.wdisneysecrets.com









  5. #5
    Senior Member
    Join Date
    Jul 2009
    Location
    A stone's throw from Plymouth Rock
    Posts
    439
    Post Thanks / Like
    Amazing photos...how far into deep space is the Pac-Man Nebula?
    Love isn't about finding someone you can live with.
    It's about finding someone you can share a lifetime with.




    ___________________________


  6. #6
    Senior Member
    Join Date
    Jul 2008
    Location
    United States
    Posts
    8,364
    Post Thanks / Like
    This is awesome! I am always amazed and so grateful that you share your photos with us.

  7. #7
    Senior Member piglet's Avatar
    Join Date
    Jul 2008
    Location
    North East Scotland
    Posts
    1,416
    Post Thanks / Like









    DLP The Disneyland Hotel
    1998 Wilderness Lodge
    1999 Off site
    2000 Caribbean Beach
    2001 Coronado Springs
    2003 Beach Club
    2005 Beach Club
    2007 Beach Club
    2009 Beach Club
    2012 Beach Club
    2014 Beach Club Concierge

  8. #8
    Senior Member
    Join Date
    Jul 2008
    Posts
    10,689
    Post Thanks / Like
    Quote Originally Posted by Vixynne, post: 167485
    Amazing photos...how far into deep space is the Pac-Man Nebula?
    It is 10,000 light years away

    Makes my brain go all fuzzy just thinking about that.

  9. #9
    Senior Member
    Join Date
    Jul 2009
    Location
    A stone's throw from Plymouth Rock
    Posts
    439
    Post Thanks / Like
    Quote Originally Posted by Skywatcher, post: 167531
    It is 10,000 light years away

    Makes my brain go all fuzzy just thinking about that.
    So the light entering your camera lens that night left the nebula sometime around 8000 B.C....

    Here's what Wikipedia says was going on at that time in history.




    *brainboggle*

    Makes you wonder what will be going on when the light that left that nebula last night finally arrives within range of stargazers on Earth...
    Love isn't about finding someone you can live with.
    It's about finding someone you can share a lifetime with.




    ___________________________


  10. #10
    Senior Member
    Join Date
    Jul 2008
    Posts
    10,689
    Post Thanks / Like
    That exactly he kind of thing I love to think about when I look at these objects - what was happening here when the light left that beautiful object all that time ago.

    I love feeling about the whole thing

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •