[ziddoap]

>CCDs

I think this is "Charge-Coupled Device"?

"an electronic sensor that converts light to digital signals through charges generated by bouncing photons on a thin silicon wafer"

Is that correct? Not familiar with the acronym.

[UltraSane]

Yes. In telescopes they use high-end CCDs with really big pixels for better light sensitivity and zero dead pixels.

This is a picture of the CCD array for the Gaia space observatory that used parallax to measure precise distances and slightly less precise angular velocities of billions of objects

http://www.bo.astro.it/~altavilla/FTP/GAIA/IMAGES/The%20comp...

[hajola]

Yes that's correct.