Sunrise Venus
Taken by Oleg Toumilovitch on October 27, 2018 @ Johannesburg, South Africa
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I used few minutes just before the sunrise to safely bring Venus into the field of view of my telescope and recorded a short video as the first rays of the sun broke through thick atmosphere, producing bright orange glow.. Venus was only 4°48 above the horizon and 6°13 from the Sun. Atmospheric refraction at this altitude produces chromatic dispersion of the light, arriving from observed object.

TAL-200K, Celestron AVX, Canon EOS-550D
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If you used registax to stack the best video frame you can realign the RGB channels to get rid of atmospheric dispersion :-)
Posted by davefriend0 2018-10-30 08:08:36
Thank you for your comment David. RGB align is a very useful function in Registax indeed, but in this case the aim was to show Venus just as it as visible at 4 degrees altitude, in full colour.
Posted by Observer 2018-10-30 14:08:21
27 thumbs up
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