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Bruce McClure

Meet the Double Cluster in Perseus

The Double Cluster in the constellation Perseus is a breathtaking pair of star clusters, each containing supergiant suns. How to find it in your sky.

Last quarter moon and Gemini stars

Stay up late to see them, or get up before dawn, when the moon, Castor and Pollux will be high in the sky as seen from across the globe.

Summer Triangle and the galactic plane

You can use the Summer Triangle – and the constellation Cygnus the Swan – to locate the edgewise disk of our Milky Way galaxy.

EarthSky’s 2017 meteor shower guide

Draconids have passed, mostly in bright moonlight. Orionids, Taurids, Leonids and Geminids ahead! Orionids peak before dawn October 21, in a moon-free sky.

Moon’s lit side points to Aldebaran

Watch the moon travel toward Aldebaran in our sky’s dome, throughout the night of October 8. Then come back a night later, and see how far the moon has moved.

All you need to know: Draconids in 2017

The Draconids are best seen in the evening hours. In 2017, a bright waning gibbous moon will interfere, but still … give it a try!

Find the Draconid radiant point

You don’t have to identify a meteor shower’s radiant point to watch the show. But the radiant of the Draconids is fun to find! Here are some ways to do it.

Watch after sunrise for a daytime moon

As it orbits Earth once a month, the moon is up during the day half the time, pale against the blue sky. You can see it this weekend, if you look.

Aquarius? Here’s your constellation

Look for Aquarius the Water Bearer this month. How to find it, its famous Water Jar asterism, plus a few stories from the ancient myths.

Watch for Mars and Venus this week

How to see the close conjunction of the dazzling planet Venus and faint red planet Mars in the sunrise direction, throughout the first week of October 2017.