Exoplanet Detection Challenges
The cluster discusses methods, difficulties, and current capabilities for detecting and imaging exoplanets, including comparisons to detecting undiscovered planets like Planet 9 in our solar system, and the role of telescopes like JWST.
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How far off are we from being able to image an exoplanet?
Can we detect it on exoplanets?
Is it fair to say it is easier to detect planets in other solar systems?
Detecting planets is hard, even within our own galaxy.
Can this detect planet 9? It's supposed to be more easily seen with infrared.
Could be. Detecting smaller planets further out is less and less likely.
How can we spot exoplanets 20M light years away, but not have absolute metaphysical certitude about the number of planets in the solar system?
Does that technique find Kepler Elements of small, remote planets? Or just demonstrate the existence of large planets?
Related Giant planet discovered orbiting tiny star (29 points, 1 day ago, 14 comments) https://news.ycombinator.com/item?id=44183175
Maybe if the alien city covers the entire planet and consists mostly of searchlights. Otherwise, the "may" and "soon" are too optimistic.See https://en.wikipedia.org/wiki/Methods_of_detecting_exoplanet...