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Infrared astronomy is a sub-discipline of astronomy which specializes in the observation and analysis of astronomical objects using infrared (IR) radiation. The wavelength of infrared light ranges from 0.75 to 300 micrometers, and falls in between visible radiation, which ranges from 380 to 750 nanometers , and submillimeter waves.
Infrared astronomy is founded on the detection and analysis of infrared radiation, wavelengths longer than red light and outside the range of our vision. The infrared spectrum is useful for studying objects that are too cold to radiate visible light, such as planets, circumstellar disks or nebulae whose light is blocked by dust.
The Star-Spectroscope of the Lick Observatory in 1898. Designed by James Keeler and constructed by John Brashear.. Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, ultraviolet, X-ray, infrared and radio waves that radiate from stars and other celestial objects.
Galactic cirrus emission (far-infrared) Faint galactic stars (in the near-infrared, λ<20μm) Infrared emission of intracluster dust in the Local Group; The cosmic microwave background - although physically it is not a "foreground" - is also considered as an important contaminating source of emission at very long infrared wavelengths (λ>300μm)
More specifically, he made major technical and programmatic contributions to the Space Infrared Telescope, which was renamed the Spitzer Space Telescope after its launch in 2003, the Stratospheric Observatory for Infrared Astronomy, which consists of a large infrared telescope aboard an airplane, and 2MASS, which is an infrared all-sky survey.
Infrared light can penetrate cosmic dust clouds, allowing us to peer into regions of star formation and the centers of galaxies. NASA's Spitzer Space Telescope was the largest infrared space telescope, before the launch of the James Webb Space Telescope.
In infrared astronomy, the problem can be much worse: due to the longer wavelengths involved, the sky and the telescope themselves are a source of light. [1] To work around this problem, infrared telescopes often use a technique called chopping, where a mirror rapidly oscillates between the object of interest and the nearby, empty sky. The two ...
An infrared telescope is a telescope that uses infrared light to detect celestial bodies. Infrared light is one of several types of radiation present in the electromagnetic spectrum . All celestial objects with a temperature above absolute zero emit some form of electromagnetic radiation . [ 1 ]