Messier 4 or M4 (also known as NGC 6121 or the Spider Globular Cluster) is a globular cluster in the constellation of Scorpius. It was discovered by Philippe Loys de Chéseaux in 1745 and catalogued by Charles Messier in 1764. [9] It was the first globular cluster in which individual stars were resolved. [9]

2015年1月31日 · Messier 4 (M4) is a bright globular cluster located in the southern constellation Scorpius. It lies at an approximate distance of 7,200 light years from Earth and has an apparent magnitude of 5.9. The cluster has the designation NGC 6121 in the New General Catalogue.

2024年9月12日 · Messier 4, located in the constellation Scorpius, is a huge, spherical collection of stars known as a globular cluster. At just 5,500 light-years away, it is the closest globular cluster to Earth, making it a prime object for study.

2023年7月26日 · That’s Messier 4, called M4 for short. It’s a globular star cluster, an ancient member of our Milky Way galaxy. M4 shines at magnitude +5.9, so it may be visible as a smudge on the sky under very...

2016年2月22日 · Located in the Scorpius (Scorpio) Constellation, this great cluster of ancient stars is one of the closest Messier Objects of its kind to Earth. M4 is one of the most open, or loosely constructed...

Messier 4 is a Globular Cluster in the Scorpius constellation. Messier 4 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere. Given its visual magnitude of 5.4, Messier 4 is barely visible to the naked eye, easily visible with the help of a small binocular.

Messier 4 (M4, NGC6121) is a globular cluster that has a distance from Earth of 7,200.00 light years. It can be found in the constellation of Scorpius. It was discovered in 1746 by Philippe Loys de Cheseaux.

Messier 4, also known as NGC 6121, is a globular cluster located in the constellation Scorpius. Discovered by Philippe Loys de Chéseaux in 1746 and later cataloged by Charles Messier in 1764, this dense stellar assembly is situated approximately 7,200 light-years away from Earth.

Messier 4 is one of the easiest globular clusters to locate. It is just 1.3 degrees due west of Antares, the red first magnitude star in Scorpius that is very prominent in the southern sky on summer evenings. It is easy to spot with binoculars.

Messier 4 (NGC 6121) is a globular cluster located in the constellation Scorpius, in the Galactic Center of the Milky Way Galaxy in the Local Group of galaxies. M4 is 7200 light years away from Earth.