https://esahubble.org/images/heic1513b/
The area around NGC 6503 (ground-based image) | ESA/Hubble
The area around NGC 6503 (ground-based image)
the areangc 6503ground basedaroundimage
https://www.astronomy.com/science/open-cluster-m21-globular-cluster-ngc-6553-and-the-lost-in-space-galaxy-ngc-6503/
Open cluster M21, globular cluster NGC 6553, and the Lost in Space Galaxy (NGC 6503) | Astronomy.com
May 18, 2023 - In this week's Astronomy magazine podcast, we'll help you observe open cluster M21, globular cluster NGC 6553, and the Lost in Space Galaxy (NGC 6503) in your...