Huge Sunspot
Taken by Gabriel Corban on May 15, 2016 @
Bucharest ROMANIA
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
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Date Taken: Unavailable
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Details:
The huge sunspot of today, AR12546, was captured at "Pajura Solar Observatory", Bucharest- Romania.It is an unusually radially symmetrical sunspot, with the estimated size of 1 arcminute and 17 arcsec. It was captured using an Equinox ED120 refractor, a Baader Herschel prism, a Baader continuum filter , a X5 TeleVue barlow and a GrassHopper USB3 camera from PointGrey Research. I used 600frames captured at about 120 fps and selected only the best 60 frames which I processed them using AS!2 software and Photoshop CS3.
Photographer's website:
http://https://www.flickr.com/photos/43926774@N06/
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