FredKleinAstro Home
Chile Home
ALMA Album

Antenna

Here is one of the antennae. Most of them are 12 meter diameter and have a surface accuracy of 25 micrometres much less than the thickness of a single sheet of paper. Amazing for being exposed to wind and sun! I caught this antenna slewing, it was faster than my CGE mount and from this distance was silent.

Click on Image for Closer View