Deep fields & lensing
Globular Cluster M4
April 24, 2002 · ESA/Hubble · M 4 , Messier 4 , NGC 6121 · Scorpius
Zoom to full resolution See where it is in the 3D sky Original on ESA/Hubble ↗
This panoramic view of the globular cluster M4 was captured by The Kitt Peak National Observatory's 0.9-meter telescope in March 1995.
The cluster hosts some highly interesting white dwarfs that can be used to age-date the Universe.
