Southern Cross Observatory

The 12" Telescope Mirror

I had my 12" mirror re-aluminised in readiness for the Pluto occultation (June 13, 2006). It looked OK on the normal front-on view in the scope. However, against the light - all was revealed, severe deterioration after 5 years. The mirror is always covered when not in use. Curious the deterioration is greatest around the outer edge. This time round it has been quartz overcoated. SM

 










 


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The 12" Mirror

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All images © Shevill Mathers - reproduction without permission prohibited


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