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Average distance to the Sun: 149,600,000 km This is the basis for the astronomical unit (abbreviated as AU) which is based on the Earth-Sun distance. 1 AU = 149 597 871 km
15 lut 2011 · From this, they deduced the distance Earth-Mars. Then, using the Kepler law $$\frac{a^3}{p^2}= constant$$ (where $a$ is the distance between the planet and the Sun, and $p$ the sideral time) they could figure out what was the distance to the Sun.
19 gru 2018 · The answer below is a combination of the first answer with a cross-check from Wikipedia (for the obliquity of the ecliptic plane specifically) and here (the formula for ecliptic longitude of the Sun in the first answer uses 0.918994643 to multiply sin(2 * g * pi) in the final term instead of 0.020, so I used the factor below, but I am not sure ...
Use these two images to find the variation in the Earth-Sun distance R. Given: In a 512x512 image from Yohkoh, each pixel corresponds to 4.9 seconds of arc (a second is 1/3600 of a degree -- there are 206265 arc-seconds in a radian). Given: The actual physical diameter of the Sun is diam = 1.4 x 10 9 meters (1.4 million kilometers).
26 cze 2022 · There are various methods to calculate the space between your Earth and also the Sun utilizing a transit. An account of two methods obtainable here. During these methods you’ll compare tracks of Mercury over the disc from the Sun as seen from two different observing sites.
4 sty 2015 · French astronomer Jerome Lalande collected all the data and computed the first accurate distance to the Sun: 153 million kilometers, good to within three percent of the true value!
When Earth and the Sun are closest, they are about 147.1 million kilometers apart; when Earth and the Sun are farthest, they are about 152.1 million kilometers apart. The average of these two distances is called the astronomical unit (AU).
