What’s Up! June 2021

A monthly look at astronomical events in the sky and on Earth 

Compiled by John Rowland

Well, we’re now into the lightest month of the year, and apart from the Moon and a few select double stars, there’s not much to see up there I’m afraid. The summer solstice is on June 21st at 0431 and on that day from York, the sun rises at 0434 and sets at 2139. There are no periods of astronomical darkness; the darkest nights on offer are between the 1st and the 7th, when there is some nautical twilight, but other than that there is only civil twilight (Sun 6° below horizon) all night. But let’s make the best of it and see what we can see. Continue reading