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How Much Greater Is The Light Gathering Power Of A 8 Inch Telescope Compared To That Of Your Unaided Eye? [Solved]
The light gathering area of the 7mm pupil is then 0.06 in2. For the 8" telescope, this gives a ratio of 50/0.06 = 833, meaning an 8" telescope gathers 833 times more light than the unaided eye.
Telescope Light Gathering Power Compared to Human Eye
The
Telescopes Light Gathering Power, Resolution, Magnification
This video discusses some numerical comparisons for
Comparing Telescope Light-Collecting Areas
Bigger telescopes
