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The Sidewalk Astronomers are a public service amateur astronomy association. ALL Sidewalk Astronomers events are for the public. We take telescopes TO the public - on street corners, public parks, in front of bookstores -wherever there are crowds of people. We also work with other amateur astronomy organizations and take part in many international projects. Please browse our site and feel free to contact us to learn about events in your area.

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Thursday, November 12, 2009

Mirror Grinding...
We know there are a lot of glass pushers out there that will enjoy these photos. Gerard Pardeilhan, long-time Sidewalk Astronomer sent these of some 1 meter hexagon flex mirrors he was polishing at NASA Goddard this year.
webassets/gerard2.jpg webassets/gerard3.jpg
8:00 pm est          Comments


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