Contains:  Solar system body or event
Venus 21 Jan, LacailleOz

Venus 21 Jan

Venus 21 Jan, LacailleOz

Venus 21 Jan

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Description

I am working with a student on imaging Venus to look at phase changes so I have been needing to practise on this difficult subject! This was done on the Canberra morning of 22nd (21 Jan in UT).

I have modified the imaging train for this image. I have been using a Televue 2X Barlow but have realised this has been giving me an f ratio of 29 or so when combined with the ADC - way too big. So I found an old Celestron 2X Barlow in the drawer and removed the lens element, which I could screw into the ADC and achieve f 24 - still a bit high but closer to the optimal f 20 for the ZWO224MC.

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Venus 21 Jan, LacailleOz

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Venus