A half-illuminated moon with a sharp straight terminator line dividing bright and dark halves, craters visible near the edge.

First Quarter Moon

Photographed at exactly 50% illumination, the terminator cuts a crisp line down the center of the disc, throwing the crater walls along it into sharp relief.

Date: 1 April 2020
Capture: Canon EOS R · 150-600mm F5-6.3 DG OS HSM | Contemporary 015 · 600mm · f/6.3 · 1/250s · ISO 160