Blanco f/8 Secondary Repaired

The repair of the Blanco telescope’s f/8 secondary has been completed, and the figure of the repaired optic (shown at right) matches the measurement after it was refigured in 1993 (at left). The small circle in the center of the 2013 image represents the diameter of the repair. The repaired mirror will be returned to Chile, where the repairs to the mirror cell are underway. Initial re-integration of the cell on the telescope is scheduled for late June, with first light with the repaired mirror planned for August.