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White Dwarf Stars in M4


Depicts: M4, NGC 6121
Copyright: Harvey Richer (University of British Columbia, Vancouver, Canada) and NASA

A Hubble Space Telescope color image of a small portion of the cluster only 0.63 light-years across reveals eight white dwarf stars (inside blue circles) among the cluster's much brighter population of yellow sun-like stars and cooler red dwarf stars.

Hubble reveals a total of 75 white dwarfs in one small area within M4, out of the total of about 40,000 white dwarfs that the cluster is predicted to contain.

Last Update: 1 September 2019
23-Jan-2026 23:30 UT

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