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2010/2011 winter eclipses

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Author Topic: 2010/2011 winter eclipses  (Read 2293 times)
Roman White
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Poltava, Ukraine

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« Reply #45 on: January 08, 2011, 07:18:18 pm »

Thanks Andy,

Here are the results of my photometry:
Have taken consequtive shots of the same (northern) area of the sky with equal exposure and without expocompensation. At the same time, I've noted the EV values displayed by camera (the ones that could probably be used).
(NB: as the Sun rised from 10 to 17, the atmosphere extinction changed from 4х to 2.5х)

First and third point from the graph above have been used for making this animation.

I said, I had some doubt whether the decrease of illumination was visible visually, but with help of camera it is evident!  Smiley
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SkyWatcher 130/900mm EQ3, Bresser 76/700mm, 20x90 bino. and other, Olympus SP-550UZ
Eclipse & comet chaser, occultation & meteor observer
Poltava Astronomy Portal

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