James Webb Space Telescope
(future space-based 6.5 meter infrared telescope)
The James Webb Space Telescope (JWST) is a
6.5 meter (21 ft) NASA/European Space Agency/CSA
space-based infrared telescope under construction,
planned for launch in March 2021
(as of June 2018--the launch date has been delayed several times)
to the Earth-Sun L2 Lagrangian point.
Its lifetime will be limited by the fuel it carries and uses
to keep it from straying from its orbit.
A five-and-a-half-year program is targeted and a ten-year
life is hoped for. Instruments:
One observation target is spectroscopy of extra-solar planets.
NIRISS can operate in a mode termed SOSS, for
single-object slitless spectroscopy,
aimed at differential spectroscopy for observing the
light curves of transiting exoplanets.
MIRI offers medium-resolution (MRS mode,
offering resolutions of 1500-3500) which is hoped
to provide direct imaging of exoplanets.
NIRSpec offers several gratings, with grating
labeled G395 offering a spectral resolution of as much as 2700.
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Association of Universities for Research in Astronomy (AURA)
European Space Agency (ESA)
Goddard Space Flight Center (GSFC)
High Definition Space Telescope (HDST)
Origins Space Telescope (OST)
Space Telescope Science Institute (STScI)
Ultimate Spitzer Phase Curve Survey (USPCS)