Tuesday, February 12, 2013

Globulaxy

The winds calmed, the clouds wandered out of the sky, and God commanded Dave to rise from his slumber and set up the Celestron CPC1100 Schmidt-Cassegrain scope.
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Astrophotography requires a good alignment. If your scope isn't tracking the apparent movement of the stars, then your pictures will look like above. The streaks are called Star Trails. The above picture was taken immediately after slewing to M13. The tracking motors hadn't "calmed down" yet. I usually wait a minute or two before shooting a dozen or so shots. All of these pictures were 30-second shots at an ISO of 3200.
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That's more like it. This is M13, the Great Globular Cluster in the constellation Hercules. This photo is right out of the box. All I did was convert the NEF file to JPG. No cropping, no nuthin'.
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Same shot, only I brightened it a little and cropped.
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This is M82, a most colorful galaxy in the constellation Ursa Major. The Big Dipper is part of Ursa Major. This photo is right out of the box.
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Same shot, brightened and cropped.

Posted by Dave

5 comments:

  1. and somewhere out there is somebody laying on a beach wondering whom is watching them....

    Wildflower

    ReplyDelete
    Replies
    1. Hi Wildflower,

      I wonder constantly. Why do you think I watch the skies?

      Dave

      Delete

  2. for cute nude female aliens sunbathing

    what else?

    Wildflower



    ReplyDelete
  3. I like colorful galaxy M82.

    "Galaxies", Dave <*sigh*> -- this must give you nice perspective as you visit our little political blogs where we discuss the silly blather of the day.

    ReplyDelete
    Replies
    1. Hi Lisa,

      You know I never miss a post. But I am kinda gun-shy of commenting sections right now. Had my knuckles rapped a few times, and I'm still healing from the bus tires over at Sarah Hoyt's Cult-Blog.

      The Spring Constellations are up in the early morning now. When the moon clears in a week or two, I'll be shooting the hell out of the nebulas in Sagittarius and cool stuff along the Milky Way.

      Dave

      Delete

All comments are welcome.