Usk Astronomical Society Members Blog
NickBSays

Picture of Aristarchus, Heroditus and Vallis Schroteri.  Taken in Abergavenny last night in near infra red (>742 nM) using a 200 mm Maksutov.  This is a composite of six pictures taken at high resolution.  The settled seeing and using IR instead of visible light gave very stable images for stacking.  Objects significantly less than 1 km across are resolved.  Aristarchus, for scale is 40 km across.  It is a young crater for the moon, possibly only 450 my old.

aristarcus_B_stitchII_filtered.jpg

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