Five Reasons to Look Up This September
September 2026 brings Venus at peak brilliance on the 18th, International Observe the Moon Night on the 19th, the equinox on the 22nd and a Harvest Moon beside Saturn and Neptune on the 26th. NASA's highlights and how to see them.
By the UISC BD Editorial Desk · United Information Service Center · Published 13 September 2026 · 4-minute read
NASA's astronomy picture of the day and night-sky guides are perennial Google favourites, and September is a particularly good month to step outside. Here are the highlights from NASA's skywatching guide.
14–20 September: Let the Moon Guide You to Antares and the Teapot
Look south about an hour after sunset. The Moon helps you find Antares, the reddish star at the heart of Scorpius, and then the teapot-shaped group of stars in Sagittarius. From a dark location, you may also see the bright centre of the Milky Way in that direction.
18 September: Venus at Peak Brilliance
Venus reaches its greatest brightness for this evening appearance. Look toward the western horizon shortly after sunset. It will outshine every star around it — if you see a dazzling "star" low in the west, that is Venus.
19 September: International Observe the Moon Night
A worldwide celebration inviting everyone to look at the Moon and learn about lunar science. Binoculars show craters and dark lava plains clearly, but the naked eye is enough to take part.
22 September: The Equinox
Autumn begins in the Northern Hemisphere and spring in the Southern Hemisphere. The Sun sits directly above Earth's equator, and day and night are close to equal in length around the world.
26 September: The Harvest Moon Beside Saturn and Neptune
The full Moon closest to the September equinox is traditionally called the Harvest Moon. It rises in the east shortly after sunset near Saturn, which is visible to the naked eye. Neptune is nearby too, but at magnitude 8 it needs binoculars or a telescope.
Tips for Better Viewing
- Get away from lights. Even a local park is better than a lit street.
- Give your eyes time to adjust to the dark before judging what you can see.
- Use red light if you need a torch, and avoid looking at your phone screen.
- Check the horizon. Venus and the rising Moon are low, so buildings and trees matter.
- Try binoculars. They reveal far more of the Moon, star clusters and Neptune.
For what is happening beyond the naked eye, see Chandra's new image of colliding galaxies and NASA's newly launched Roman Space Telescope.
Related reading
- Artemis III's Moon Rocket Gets Its Four Engines
- NASA's Roman Space Telescope Is on Its Way: What It Will Look For
- NASA Internships 2027: Who Can Apply, Deadlines and How to Stand Out
- Ig Nobel Prizes 2026: Smelly Teenagers, Cockroach Milk and Splash-Free Urinals
Sources
- "What's Up: September 2026 skywatching tips from NASA," NASA Science — science.nasa.gov
- Google Trends, NASA searches worldwide, past 7 days — trends.google.com
