Questions tagged [coronograph]

Questions about telescope attachments designed to block the direct light from a star.

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"Quarter root of intensity" in coronographic plots

In excitement regarding the JWST release, I came across Krist et al, The JWST/NIRCam coronagraph: mask design and fabrication, within which there is the following plot: Fig. 9. Focal plane images ...
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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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