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Bruce McClure

Year’s fastest sunsets around equinoxes

We’re talking about the actual rate at which the sun sinks below the horizon. It’s faster around the equinoxes than at any other time.

Day and night exactly equal at equinoxes?

On the day of an equinox, the center of the sun would set about 12 hours after rising – given a level horizon, as at sea, and no atmospheric refraction.

Occultations galore on September 18

It’ll be the first time since 2008 that the moon occults – or covers over – 3 planets in less than a day. For good measure, the moon also occults a bright star, Regulus.

Moon and Venus next 2 mornings

They’re the sky’s 2 brightest objects after the sun, and they’re near each other Monday and Tuesday mornings.

EarthSky’s meteor shower guide for 2017

A whole series of awesome meteor showers is about to start. Click in for information on how to watch the Draconids, Orionids, Taurids, Leonids and Geminids!

Mercury/Mars conjunction before sunrise

No matter where you live worldwide, an imaginary line from the moon through brilliant Venus – in the east before dawn – points in the general direction of Mercury and Mars.

Moon and the Twins next few mornings

Enjoy the moon and Gemini stars, Castor and Pollux, Friday and Saturday mornings. These 2 stars aren’t really twins, but they’re noticeably bright and close together on the sky’s dome.

Andromeda galaxy next door to Milky Way

The Andromeda galaxy is the closest spiral galaxy to our Milky Way and the most distant thing you can see with your eye alone. Find it in your night sky!

Farthest lunar perigee on September 13

The moon reaches perigee – its closest point to Earth – once each month. Today’s perigee is the most distant one of 2017.

Use Great Square to find Andromeda galaxy

Today’s sky chart shows you how to star-hop to the Andromeda galaxy – the large spiral galaxy next-door to our Milky Way – from the Great Square of Pegasus.