This Moon Crater Looks Like a Perfect Hexagon… But Why?

In this video, we explore one of the Moon’s most intriguing and lesser-known features — Janssen Crater, an ancient impact site that appears to form a rare hexagonal shape under the right lighting conditions. Why does a crater — which should be circular — look like it has straight edges? We break down the science behind polygonal craters, how underlying fractures in the Moon’s crust can influence impact, and what makes Janssen such a fascinating target for observers. Here is a video explaining why we cannot see the far side of the moon:    • WHY CAN'T WE SEE THE FAR SIDE OF THE MOON?   And here is one about another unusual feature on the Moon, the Straight Wall:    • THE MOON'S STRAIGHT WALL in my 12" TELESCOPE   We also cover practical observing tips, including: • The best lunar phases to see Janssen at its most dramatic (you can see it 3-7 days after new moon and also at last quarter but at that time you will have to get up early in the morning.) • Where to find it along the Moon’s southeastern limb • What you can expect to see with binoculars vs. a telescope • Recommended telescope sizes and magnifications for revealing the hexagonal ձև Whether you’re a beginner with binoculars or an experienced observer with a telescope, this guide will help you track down and appreciate one of the Moon’s most unusual geological features. If you enjoy lunar observing, space science, and discovering hidden details on the Moon, be sure to like, subscribe, and share your own observations in the comments. Dark skies forever!