Thursday, February 3, 2011

Keck image

We now have one working telescope on the mount, and hopefully we will put up two more within the week. The picture below is of the building next to us. It doesn't look very impressive compared to the one taken by a digital camera, but in reality, the image taken with Keck is pretty awesome. You have to remember that the resolution of the telescope is intentionally only about a degree across. And of course, this is a microwave image that is polarization sensitive, which is not something your usual digital camera can do.
The SPT dish and the dish in the lower left corner are dark because they are reflecting the sky, which, for microwave wavelengths, is very dark down here.

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