NIRSpec

NIRSpec

spectrograph on the James Webb telescope
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The NIRSpec (Near-Infrared Spectrograph) is one of the four scientific instruments flown on the James Webb Space Telescope (JWST). The JWST is the follow-on mission to the Hubble Space Telescope (HST) and is developed to receive more information about the origins of the universe by observing infrared light from the first stars and galaxies. In comparison to HST, its instruments will allow looking further back in time and will study the so-called Dark Ages during which the universe was opaque, about 150 to 800 million years after the Big Bang.

Mission type
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Operator
ESA with contributions from NASA
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Website
ESA Europe
Astrium Germany
NASA United States
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Mission duration
5 years (design)
10 years (goal)
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SPACECRAFT PROPERTIES

Manufacturer
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Launch mass
196 kg (432 lb)
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EXPEDITION

CREW

START OF MISSION

Launch date
March 30, 2021 (planned)
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Rocket
As part of JWST onboard Ariane 5
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Launch site
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Contractor
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END OF MISSION

ORBITAL PARAMETERS

PAYLOAD

MAIN TELESCOPE

Type
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Wavelengths
0.6 µm (orange) to 5.0 µm (near-infrared)
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TRANSPONDERS

Contributors

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