Close Up of Ancient, White Dwarf Stars in the Milky Way Galaxy
M4, NGC 6121
M4 is roughly 5,600 light-years from the Earth.
Principal Astronomers: H. Richer (U. British Columbia), G. Fahlman (CFHT), B. Gibson (U. Colorado), B. Hansen (Princeton U.), R. Ibata (ESO), M. Limongi (Osservatorio Astronomico di Roma), M. Rich (UCLA), M. Shara (AMNH), P. Stetson (DAO)
HST: F336W (B), F555W (V), F814W (I)
NASA and H. Richer (University of British Columbia)
