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Bruce McClure

Bright star Deneb transits at nightfall

When the sun or a star transits, it’s at its highest in the sky. Deneb’s transit at nightfall marks a shift toward winter – or summer – depending on where you are.

Watch for zodiacal light, or false dawn

Watch for this eerie light about 2 hours before sunrise in the Northern Hemisphere. From the Southern Hemisphere, watch for it after sunset.

Keep watching moon, Venus, Mars

The best views of the moon and planets before dawn are happening now!

Moon, Venus, Mars next few mornings

Don’t miss the moon’s sweep past dazzling Venus and much fainter Mars, east before sunup. Lovely to view, and you might get a sense of the moon in orbit.

Moon occults Regulus on October 15

From most of the world, the waning moon shines near the bright star Regulus Sunday morning. From much of the U.S., Mexico, the Caribbean or southeast Canada, the moon will pass in front of Regulus.

Happy Friday the 13th

When a common year of 365 days starts on a Sunday, as it did this year, 2 Friday the 13ths are inevitable. The 1st one was in January and the 2nd in October.

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 Рand the constellation Cygnus the Swan Рto 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.