[von Tom (Tom)]

Venus is about 16% illuminated and I thought I'd have another go at imaging the night side of the planet with a full spectrum Canon EOS 600D, 1.4x teleconverter, Baader 1.25" 685nm IR pass filter (placed on the end of the teleconverter), 12" Dobsonian. North is down.

Taken over two nights there is a definite feature appearing on the night side of the planet. I cannot see how it could be a processing artefact, and I was seeing it on the live view of the video.

The planet rotates so slowly (assuming it's either a surface feature or lower atmosphere cloud feature) that it is hard to confirm.

Thanks for looking,

Tom