The Harvest Moon is coming. Video and more here

In 2023, the Northern Hemisphere's Harvest Moon falls overnight September 28-29, or almost six days after the September equinox. It's also a supermoon.

Visible planets and night sky for September and October

The bright waxing gibbous moon will pass by the golden planet Saturn on September 26 and 27. Visible planets for the month of September and October, here.

2023 September equinox: All you need to know

The September equinox is here! Autumn for the Northern Hemisphere. Spring for the Southern Hemisphere. Here's all you need to know.

On the equinox, are day and night equal?

Day and night are mostly equal on the equinox. There's a bit more daylight because the sun is a disk, not a point, and Earth’s atmosphere refracts sunlight.

Year’s fastest sunsets happen around equinoxes

The year's fastest sunsets are at the equinoxes, and the slowest are at the solstices. We're talking about how long it takes the sun to sink below the horizon.

Why is Venus so bright in our Earth’s sky?

You can't miss dazzling Venus in the east before sunup now. It's the 3rd brightest object in the sky, after the sun and moon. But why is Venus so bright?

Neptune at opposition September 18-19, 2023

Neptune at opposition - when it's 180 degrees from the sun on the sky's dome - comes early on September 19, 2023. You'll need optical aid to spot it.

Venus brightest in morning sky September 19, 2023

When is Venus brightest? It'll be brightest in the morning sky around September 19, 2023. Venus will not be this bright again until February and April of 2025.

Meteor shower guide: Up next October Draconids and Orionids

We've got several more meteor showers this year. Next up are the Draconids and Orionids in October, with Taurids mixed in. Your 2023 meteor shower guide here.

How many stars can you see on a moonless night?

Have you ever wondered how many stars are visible on a given night? It all depends on how dark your sky is, what your age is, and other limiting factors.