NASA Will Launch a New Space Telescope in 2023 to Investigate the Universe
Come 2023, NASA will have a new eye tracking the heavens and looking to solve some of the greatest scientific mysteries we know of.
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Tau.Neutrino said:
NASA Will Launch a New Space Telescope in 2023 to Investigate the UniverseCome 2023, NASA will have a new eye tracking the heavens and looking to solve some of the greatest scientific mysteries we know of.
more…
> All told, SPHEREx will scan through the whole sky and gather data in 96 different wavelengths of light.
I was not expecting that.
mollwollfumble said:
Tau.Neutrino said:
NASA Will Launch a New Space Telescope in 2023 to Investigate the UniverseCome 2023, NASA will have a new eye tracking the heavens and looking to solve some of the greatest scientific mysteries we know of.
more…
> All told, SPHEREx will scan through the whole sky and gather data in 96 different wavelengths of light.
I was not expecting that.
“The telescope lens will have a diameter of 20 centimeters with a wide 3.5° x 7° field of view, imaged onto four 2k x 2k mercury cadmium telluride (HgCdTe) photodetector arrays.”
Very wide field of view. I like that. Bigger field of view than both wfirst and euclid, both of which are already wide field. Smaller mirror than both wfirst and Euclid.
“near-infrared spectra from 0.75 to 5.0 micrometers”.
That definitely is near, the visual spectrum stops at 0.74 micrometres.
“It will employ a simple instrument with a single observing mode to map the entire sky four times during its nominal 25-month mission.”
mollwollfumble said:
mollwollfumble said:
Tau.Neutrino said:
NASA Will Launch a New Space Telescope in 2023 to Investigate the UniverseCome 2023, NASA will have a new eye tracking the heavens and looking to solve some of the greatest scientific mysteries we know of.
more…
> All told, SPHEREx will scan through the whole sky and gather data in 96 different wavelengths of light.
I was not expecting that.
“The telescope lens will have a diameter of 20 centimeters with a wide 3.5° x 7° field of view, imaged onto four 2k x 2k mercury cadmium telluride (HgCdTe) photodetector arrays.”
Very wide field of view. I like that. Bigger field of view than both wfirst and euclid, both of which are already wide field. Smaller mirror than both wfirst and Euclid.
“near-infrared spectra from 0.75 to 5.0 micrometers”.
That definitely is near, the visual spectrum stops at 0.74 micrometres.
“It will employ a simple instrument with a single observing mode to map the entire sky four times during its nominal 25-month mission.”
Golly, Spherex certainly has a lot of competition. Forget the Spherex deep, for now. The all sky survey has competition from PanStarrs, Euclid and WISE.
“The innovative SPHEREx field-of-view is comprised of rectangular linear variable filters (LVFs), so sky surveys will be constructed by pointing the LVF so as to tile the sky over successive orbits”.
That’s like Juno, but Juno only has three colours, Spherex has 96.
“One all-sky survey every six months”. “Succesive exposures approximately follow a great circle 90° from the Sun”.
Same as WISE.
Good thing about orbiting telescopes is the very little waiting time once it’s launched