Liquid Nitrogen cooling

The CCD detectors in the FORS instrument are kept very cold using liquid Nitrogen, in order to minimize the adverse effect of the heat during very long exposures. Without this cooling, it would not be possible to take images lasting more than a second.

Credit:

ESO

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About the Image

Id:liqu_nitrogen_fill_dec2004
Type:Photographic
Release date:3 December 2009, 23:21
Size:4180 x 2843 px

About the Object

Name:Very Large Telescope
Type:• Unspecified : Technology : Observatory : Instrument
• X - Paranal

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