Society for Popular Astronomy

Celestial hide and seek

An occultation is the phenomenon where one celestial body passes in front of another to hide it – like a kind of cosmic hide-and-seek. The most common event is the passage of the Moon in front of bright stars. The Occultation Section makes timings of these to help monitor the Moon’s position in space.

Click to visit the Occultation Section

The reappearance of the bright star Aldebaran from an occultation on the 6th November, 2017