Science

Unlock the Secrets of the Night Sky: Discover Globular Cluster M22 Tonight!

2025-06-17

Author: Mei

Get Ready to Stargaze!

Tonight is the perfect opportunity for night owls and stargazing enthusiasts! If you’re oriented toward the southeast after sunset, you’ll want to check out the Teapot of Sagittarius, a captivating asterism nestled near the Milky Way’s shimmering plane.

Spot the Teapot and M22!

At the top of the Teapot’s lid, you’ll find the bright star Lambda Sagittarii (magnitude 2.8). Just a short distance of 2.5° northeast, the dazzling globular cluster M22 awaits your discovery. Known for its brilliance, M22 shines at magnitude 5.1 and is among the brightest globular clusters visible in our sky.

A Gem of the Night Sky!

This stellar marvel is best enjoyed with binoculars or a small telescope. However, if you’re fortunate enough to be in an area with dark skies and a clear horizon, you might even see its fuzzy glow with the naked eye! M22 is roughly 10,000 light-years away from us and spans about 200 light-years across, housing an astonishing 70,000 stars within its grasp.

Ideal Viewing Times!

M22 will be visible up until midnight and into the early hours of June 18. As Sagittarius arcs gracefully through the southern sky, the cluster reaches its apex at around 2 A.M. local daylight time—this is your golden hour for detailed observation.

Mark Your Calendars for Celestial Events!

Don’t miss these key astronomical times for tonight: - **Sunrise:** 5:31 A.M. - **Sunset:** 8:31 P.M. - **Moonrise:** 12:28 A.M. - **Moonset:** 11:46 A.M. - **Moon Phase:** Waning gibbous (62% illuminated) Get out there and soak up the cosmic wonders waiting above!