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Showing posts with label Microns. Show all posts
Showing posts with label Microns. Show all posts

Thursday, June 7, 2012

Infrared Astronomy

The technical approaching of Spitzer is attached in four basic physical values that define the importance of IR in the investigation of astrophysical phenomena. The infrared region is part of the electromagnetic spectrum and ranges from 1 micron (near infrared) to 200 microns (far infrared). Human eyes are only sensitive to light between 0.4 and 0.7 microns.
Infrared observations expose cool state of matter.
Solid objects in space - from the size of a grain of interstellar dust (less than a micron) to the giant planets - have temperatures ranging from 3 to 1500 degrees Kelvin (K).