Science

Don’t Miss This Stunning Celestial Show: Moon, Venus, and Regulus Align Tomorrow!

2025-09-18

Author: Charlotte

A Spectacular Stargazing Opportunity Awaits!

Get ready, stargazers! Tomorrow morning promises one of the year’s most breathtaking celestial displays. If you're willing to awaken before dawn on September 19, you'll be rewarded with an incredible sight: a perfect alignment of the crescent moon, the radiant planet Venus, and the bright star Regulus on the east-northeast horizon.

Witness a Rare Triple Conjunction!

These three celestial bodies will be separated by just half a degree—less than the width of your pinky finger held up to the night sky. This ultra-close conjunction is not something you want to miss!

When and Where to Look!

About 90 minutes before sunrise, the waning crescent moon will shine at roughly 6% illumination. Thanks to a phenomenon known as "Earthshine," the moon’s dark side will be softly illuminated, creating a stunning visual effect. You can catch this mesmerizing view with just your eyes or through binoculars.

Location, Location, Location!

In North America, observations will differ slightly based on your location. East Coast observers can expect a delightful straight-line alignment of the moon, Venus, and Regulus. Meanwhile, those on the West Coast will see more of a clustered triangle formation among the three.

Star Brightness Order Revealed!

In terms of brightness, the lineup is a sight to behold. The moon will eclipse everything with its glow, followed closely by Venus, which shines with an impressive magnitude of -3.8, making it about 110 times brighter than Regulus at magnitude 1.3.

Special Views in Some Regions!

For viewers in northeastern Canada, Greenland, Western Europe, and North Africa, there's an even more special treat in store: the moon will briefly occult Venus, creating a thrilling moment as it temporarily obscures the planet. But don’t forget, the visibility of these lunar occultations will depend greatly on your exact location.

Prepare for This Stunning Show!

Mark your calendars and set your alarms because this extraordinary cosmic event is just around the corner. Grab your binoculars, find a good spot with a clear view of the eastern horizon, and enjoy this magical moment in the night sky!