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Jupiter and Uranus are low in the west as twilight fades. Jupiter looks like a brilliant star. Uranus is above it tonight, by about the width of a finger held at arm’s length, but you need binoculars to see it. The planets will slide past one other on Sunday night.

The bright yellow-orange star Arcturus is in the east at nightfall. Arcturus is a little bit heavier than the Sun. Yet that small difference has a big effect on the star’s evolution: Arcturus entered a late stage billions of years earlier than the Sun will.

The Moon creeps up on the twin stars of Gemini this evening. As night falls, Pollux and Castor are above the Moon. Pollux is on the left, and is a bit brighter than its “twin.”