Okayama Astrophysical Observatory 188cm primary mirror cleaning

[dpastern]

An excellent video showing an overview of the process.

https://www.youtube.com/watch?v=IR8fYw0hnJk

I'm surprised at using Baking Soda to polish the mirror.

[Lognic04]

Imagine the zones after baking soda polishing :lol:

[dpastern]

i wouldn't think they'd use Baking Soda if it caused any issues though?

[xelasnave]

It all seems so wrong...is it just me ?
Heck they may as well left in place and scrubed it with Ajax☺
My 12 inch was ruined with mouse uri e ..maybe give it a go with bicarb...
Alex

[dpastern]

the mirror was pretty dirty...