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The Jewelled Handle - a Moon Clair Obscur

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As the Moon was so high and bright the other night, DSO imaging was out of the question - so the next best thing, The Moon!

This is one of the many clair-obscur effects that are visible now and again on the Moon - The Jewelled Handle

The Jewelled Handle occurs when peaks of the semi-circular Jura mountain range catch the lunar dawn’s light. The illuminated arc of Montes Jura is projected into the dark terminator shadow. (This text courtesy of Pete Lawrence from an article in Sky at Night Magazine).

This is 5% of 3K frames as the seeing was jumping around like my good friend the demented frog. Meade LX90-8" with a ZWO ASI120MC - though the colour is hardly relevant!


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