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How did they calculate the diameter of Earth's and Jupiter's orbit (it's mentioned in the article as known by Romer's time).
by hackaflocka 11y ago
How did they calculate the diameter of Earth's and Jupiter's orbit (it's mentioned in the article as known by Romer's time).
- alfapla 11y agoCassini and Richter had measured the parallax of Mars (and therefore the distance to Mars) a couple of years earlier. Using Kepler's law they could then deduce the distances to the other planets.
- hackaflocka 11y agoAmazing. If you know of a comic (or graphic-heavy article) or a video that can explain to a complete astronomy-noob what parallax is and how it enables one measure the diameter of planetary orbits, please put the link below. (I can only learn science with visual illustrations, and can't mentally process equations.) Thanks!