Physics, 20.08.2019 22:30, noahmartinez3636
The surface area of a sphere (any sphere) is 4 steradians. this means that the celestial sphere covers 41253 square degrees (3602/t) of the sky. the hudf image is a square of side length 2.4 arc-minutes, and 10,000 galaxies are estimated within the image. assuming the cosmological principle, how many billions of galaxies are there in the known universe?
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The surface area of a sphere (any sphere) is 4 steradians. this means that the celestial sphere cove...
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