For Students · Telescope Designer
Telescope Designer for a virus spread
Built for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition. Simulate a virus spread live below — adjust the inputs and watch it respond, right in your browser.
Telescope OpticsLive
resolution · magnification · light grasp
Controls
Presets
Aperture rules everything: resolving power is θ = 1.22·λ/D (Rayleigh criterion), light-gathering scales as D², and the faintest visible star climbs with aperture. Magnification is just objective focal length divided by eyepiece focal length — and is useless beyond what the aperture can resolve.
Data Inspector
Resolution0.69″
Magnification120×
Light vs eye816×
Limiting mag14.2
Governing equation
Reading this result: Well matched: 120× sits under the 400× ceiling, so the 0.69″ resolving power of this aperture actually shows real detail.
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
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Frequently asked questions
- Is this good for students?
- Yes — this version of "Telescope Designer for a virus spread" is framed for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.