Colorful Star Scintillations
Taken by Tom Wagner on April 16, 2017 @ Waterloo, Iowa
Click photo for larger image
  Camera Used: PENTAX PENTAX K-5 II s
Exposure Time: 191/100
Aperture: f/3.5
ISO: 12800
Date Taken: 2017:04:16 23:28:36
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Decades ago I discovered that by wiggling my binoculars while looking at a scintillating star I could easily see the colors of the rainbow flash by in rapid succession in the streak the star was making.

Tonight – for the second time actually - I recorded with my camera what I see with binoculars. Sirius was about 7 degrees above the SW horizon.

To record the colorful scintillations I extended my zoom to 250 mm, opened the lens wide open (f 3.5), cranked up the ISO to 12800 and aimed at the bright star Sirius. I opened the shutter on B and wiggled the camera slightly. The exposure turned out to be two seconds.

The colors are really spectacular!

Camera used: Pentax K-5 IIS
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Great picture! Very imaginative and artistic, makes you want to look at other stars the same way. Thanks for the inspiration!
Posted by nordanstig 2017-04-19 07:45:32
59 thumbs up
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