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Schiller, Zuccius, Bettinus, Kircher and Bailly, 2019 April 17

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About this observation
Observer
David Arditti
Time of observation
17/04/2019 - 23:13
Object
The Moon
Observing location
Edgware, Middlesex, UK
Equipment
14" SCT
IR 807nm filter
PointGrey Grasshopper 3 camera
Exposure
30s video
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I've already posted this image in the Moon discussion forum. I found it very interesting how Bailly at this illumination and libration created the powerful impression of a hump on the terminator. It looked, in this view, as if it was at the southern cusp of the Moon, but panning the view along showed it was well away from the cusp. The effect was plainly due to the distant wall of this vast plain catching the light, while all the surrounding terrain was shadowed.

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