Comet Lovejoy
Taken by Fritz Helmut Hemmerich on January 20, 2015 @ Tenerife, Canary Islands
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Details:
Comet Lovejoy this evening with a very interesting corksrew shaped tail. Sony A7s, ISO 3200, Hyperstar 14", EQ8, stitched from two stacked frames, each 4 x 40 sec, no filter, no calibration, processed with DxO10 and PixInsight 1.8, Tenerife 1200 m altitude, 2015_01_20 21:30 h U https://www.facebook.com/photo.php?fbid=980424348637789&set=a.269535393060025.83092.100000107007390&type=1&theater
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Comments
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Beautiful imaging work Fritz!

This is a great testament to the Sony A7s.
Also you might consider this image for NASAs Astro Picture of the Day. I think theyd be honored to run it. (And I mean both the positive and inverse image that shows even more details.)

Mark Seibold, Artist-Astronomer, Portland Oregon
Posted by markseibold 2015-01-21 22:10:26
Agree, the Sony A7s is a revelation ... but whay the brillant stars are all blue, surrounded by blue? You write : no filter ... Great work ...
Posted by astromazzo 2015-01-22 00:24:55
 
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