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Optimal telescope size?
Consider a diffraction-limited telescope with unobstructed aperture $D$. Such a scope is capable of yielding an angular resolution $\alpha$ that scales as $\lambda/D$, with $\lambda$ denoting the ...
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Future space-based telescope array
Radio-telescopes (e.g. the Very Large Array (VLA)) can simulate one gigantic dish by using separate smaller dishes.
Q: Could such an array of optical telescopes potentially see an exoplanet at say 20 ...
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What equipment is needed for equatorial drift scanning/TDI with a Dobsonian?
It should be possible to do a "parked scan" along the celestial equator ("stripe 82" and "stripe 10") with a Dobsonian telescope, as no tracking is required. I can foresee two issues, though: first, ...
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Observing through a 90 degrees positioned telescope on a flat surface
Assuming I'm standing in the middle of the ocean with a large telescope, positioned such that it's angle is 90 degrees (i.e, it's parallel to the sea) and assume that there are no light interferences ...
