Mars - 20 December 2022 (Geof Lewis)

Contains: Solar system body or event

Mars - 20 December 2022

Acquisition type: Lucky imaging

I headed out again, hoping to grap an image of Mars with Sinus Sabaeus central and before Syrtis Major rotated out of view, as I haven't got that aspect from this apparition yet. Unfortunately, I waited too long for Mars to gain better elevation, by which time clouds poured in. I sat under those clouds for over 1 hour with a very faint Mars on screen (seen through clouds, with high camera gain) and eventually decided that I'd just better grab some data through the cloud as it thinned. Seeing was also not great, so the combination of pesky clouds and indifferent seeing made it very difficult to determine accurate focus, but that's the nature of this hobby from the UK. Anyway, I managed three reasonable 6 min runs, so this is a de-rotated stack from the best 20k frames from each of 2x6 min, i.e. 40k frames in total - trying to de-rotate all 3 images, left nasty limb artefacts. The main albedo regions are visible, but little, if any, in the way of fine detail showing.

Planets - Mars

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Astrometry.net job	n/a
PixInsight job	n/a
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