- Globular cluster M4 is located near the star Antares.
- A medium-sized telescope (6-inch) shows many stars in M4.
- A long-exposure image reveals almost all of M4’s stars.
- The image of M4 is very detailed and immersive.
Fernando Oliveira de Menezes from São Paulo, Brazil
Globular cluster M4 lies just west of Antares (Alpha [α] Scorpii). To a visual observer, a 6-inch scope reveals dozens of stars; this image comprising 2.6 hours resolves nearly the entire cluster, yielding a star field that feels like you could fall into it. Click to see it in full resolution.