The answer is: certain things are easier to express/calculate in one coordinate system than the other. Anything involving the solar system and the motion of bodies in it, for example, is …

Apr 27, 2021 · The ecliptic is the apparent path of the Sun in the sky over the year—it corresponds to the plane of the Earth’s orbit around the Sun. Coordinates in the ecliptic …

Mar 26, 2024 · 4 I want to model the orbit of Mars, pretending that it is a circle around the Sun at the origin of my coordinate system, with the Earth being at (1,0,0) in terms of AU on March 19, …

Jul 23, 2017 · That's of course consistent with the data being labeled as: EMB, Ecliptic Heliocentric Coordinates. If you can live with some small uncertainties due to the details of …

Jul 2, 2024 · Now you can use spherical trigonometry to convert coordinate system, it is the same method you use to obtain an equation of Moon's ecliptic latitude and longitude to get …

Oct 28, 2019 · As a novice, I could understand the horizontal, equatorial and ecliptic coordinate systems. However, when I started using an astronomy library to write the code, I realised that …

Aug 4, 2024 · For Earth it's easy - Earth at the vernal equinox lies on the primary direction in the ecliptic coordinate system, which is the system I'm using for my model, and it's the point at …

May 26, 2016 · When looking for a formula to convert polar ecliptic geocentric coordinates of an object to equatorial coordinates I find various sources that give these formulae (like …

Feb 1, 2024 · The ecliptic latitude gives the angular distance above or below the ecliptic (north positive, south negative). Modern astronomy prefers to locate points on the celestial sphere …

Dec 19, 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 …