Crater Tycho and its rays


Tycho is a modestly sized impact crater that resembles the “navel” of the Moon. It is relatively recent (estimated at 107 million years) which explains why its ejecta are visible above other older craters. These ejecta form a system of divergent rays that extend up to 1,500 km away.

Tycho is at his most spectacular during a Full Moon and his rays are then visible with a pair of binoculars.

Technical details:

Telescope: Celestron Edge HD14 and 0.7x focal reducer
Mount: Paramount MX+
Camera: ZWO ASI 174 MC
Exposure: video capture where the best frames have been selected, stacked, and processed
Date: February 21, 2021
Place: Backyard observatory in Sainte-Sophie, Qc