Gemini South Primary Mirror Received a Silver Coating

Gemini South optical engineers inspect the primary mirror after 7-hour coating process.

During the recent scheduled maintenance, which took place October 13th - 30th, the Gemini South telescope's primary mirror received a fresh multi-layer protected silver coating. Read more details about the Gemini South's scheduled shutdown on the Gemini blog.

The Gemini telescope mirrors are recoated about every 5 years. Click to see a time lapse of the last Gemini South mirror coating in 2010: MP4 Video or QuickTime Video.