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  1. en.wikipedia.org › wiki › SunSun - Wikipedia

    4 godz. temu · This temperature gradient is less than the value of the adiabatic lapse rate and hence cannot drive convection, ... (9,800 °F) and the density to only 0.2 g/m 3 (about 1/10,000 the density of air at sea ... Careful observations of the 1769 transit of Venus allowed astronomers to calculate the average Earth–Sun distance as 93,726,900 miles ...

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