Questions tagged [space-telescope]
Questions regarding telescopes in orbit around Earth, such as the Hubble Space Telescope.
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What are the deciding optical factors between a refractive and reflective space telescope optics as a function of aperture? (visible light)
Reading Yale News' Lighting a path to Planet Nine:
To detect objects that are otherwise undetectable, Rice and Laughlin employ a method called “shifting and stacking.” They “shift” images from a ...
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How was astronomical data meant to be handled on HST precursors?
The first drafts for a large space telescope such as Hubble were made in the 60's, and the idea of a space observatory originated long before that. From Wikipedia:
In 1968, NASA developed firm ...
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How would the "Fluidic Telescope (FLUTE)" next generation telescope make and control a smooth, correct concave optical surface figure in microgravity?
The January 10, 2023 NASA Ames Research Center news item Fluidic Telescope (FLUTE): Enabling the Next Generation of Large Space Observatories discusses a proposed project to study the feasibility of a ...
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What is the large dim feature near the center of the first James Webb image (of SMACS 0723)?
I was intrigued by the large dim feature (highlighted below) in the center of the first James Webb image of SMACS 0723. Is anything known about it?
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How is the roll of the Hubble telescope around its axis and the dispersive direction(s) of it's spectrometer(s) managed?
Reading Dupree et al. 2020 Spatially Resolved Ultraviolet Spectroscopy of the Great Dimming of Betelgeuse (also in arXiv and summarized in Phys.org's Hubble finds that Betelgeuse's mysterious dimming ...
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How to find the minimum range at which some imaging payload/instrument can produce a clear image?
JWST's NIRCam can image deep sky objects so clearly. However if we notice the images of planets like Mars, Saturn or Saturn's's Moon-Titan, they don't appear to be much clear. Hence considering the ...
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How will China's Xuntian space telescope use its Terahertz capability? THz Spectroscopy? Imaging? Something else?
An Update on the Chinese Space Station Telescope Project Hu Zhan, National Astronomical Observatories, CAS, KIAA, Peking University, On behalf of the CSST Team, ISSI-BJ Workshop: Weak gravitational ...
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Understanding WISE acronyms
I've enoucntered many acronyms related between them, like AllWISE, WISE, NEOWISE, CatWISE, WISEA, WISEAR, WISEAF, WISEU, WISEP, WISEPA, WISEPC, WISEF, WISEPF, WISER, WISEWF, WISET, WISETF, WISENF... ...
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What kind of space telescope could best take advantage of orbiting far from the Sun?
While Hubble has provided an astounding amount of science from low Earth orbit, one of the reasons it was put in LEO was to be readily accessible for service and upgrades by the Space Shuttle.
JWST ...
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What would it take to view "the whole EM spectrum"?
I know the EM spectrum goes off both ends, but nearly everything anyone has bothered to use it for has wavelengths between $10^8$m (ELF) and $10^{-12}$m or so (gamma rays). So for the purposes of this ...
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How do HabEx's internal coronagraph and external starshade work together and complement each other? What is it that each can do that the other can't?
Limits of space telescope? links to the video 4 Future Space Telescopes NASA wants to build and that page links to The New Great Observatories. These cover the four space-based instruments proposed by ...
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Why look at an infrared telescopes's mirror with ultraviolet light? (Herschel Space Observatory)
While link-clicking for Where did Herschel Space Telescope go in 2013? I ran across the 2009 Time Magazine article Two Telescopes to Measure the Big Bang which shows the file photo below with the ...
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Where can I find raw text, ascii, or binary data from the GALEX satellite?
I am looking for stars in the GALEX data through the GALEX data using GALEXview and plugging in their Henry Draper Numbers
http://galex.stsci.edu/galexview/
But the task is tedious by hand. Is there ...
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What is the cost and benefit of building two identical telescopes?
I suppose that (especially space) telescope costs is dominated by design and development, not by material and manufacturing. So once a telescope has been developed and designed, how much extra would ...
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How hard or soft is the Hubble's "science floor" due to atmospheric torque? Do some kinds of observations have lower floors than others?
After 04:58 in Scott Manley's How Failed Gyros Are Making Hubble's Life Harder:
And while the telescope is floating in space, it is still subject to small forces which can adjust its orientation. ...
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