![]() Terrestrial Planet (primarily Earth-like structure) Inner Planet (along with Venus, Earth & Mars) Spacecraft: BepiColombo in 3-D (Attitude Viewer) rotate & zoomģ-D Interactive Trajectory scroll, zoom, drag, play Origin: Solar Wind, Planet's Crust, Meteoroids NASA / JPL's Photojournal pages for Mercury Map of Mercury's Surface ("enhanced color"): Synodic ("Day" in Earth solar* days): 175.942 Surface Temperatures: average 167☌ (332☏) So it appears to stop rotating every time it reaches perihelion! Its spin & elliptical orbit are synchronized, Viewed from the Sun, Mercury exhibits a peculiar motion. ![]() View Mercury in 3-D Another Another 3-D in Orbit QuickMap 3-D Globe w/Labels Mercury TrekĬurrent Location in the Constel. You'll find more information about many of CELESTIA's controls on our Learning Center page. Pressing the J key (either shifted or "un-shifted") will reverse CELESTIA's flow of time in version 1.6.x and 1.4.1.Pressing Shift+L and Shift+K respectively will speed up and slow down CELESTIA's flow of time by a factor of 2 in version 1.6.x only.Pressing the "un-shifted" L key and K key respectively will speed up and slow down CELESTIA's flow of time by a factor of 10 in version 1.6.x and 1.4.1.Keeping an eye on CELESTIA's clock at the top-right will help you appreciate how much time is passing in each view. This will also turn on information text in other corners to help you keep track of several as- pects of the event you're viewing. the program's date and time) is not visible at the top-right of its window, press the V key until you see it. After you run the links at top that display planetary orbits, Right Drag with your mouse a to get a good sense of their 3-dimensional aspects.If you're new to the program, these tips will also help you learn to use it.Īre you unfamiliar with our 1.6.x and 1.4.1 links? For an explanation click here. The following will help you enjoy this page's 1.6.x and 1.4.1 links that run events directly in CELESTIA. General Theory of Relativity that the rate of Mercury's Precession of Perihelion could be explained. This means that it takes over 200,000 years for Mercury's "orbit" to rotate once around the Sun! Even so, that is still faster than could be accounted for by Newton's Law of Gravitation. Even in Mercury's case, its rate is extremely slow-only about 1/6 of a degree each century. Mercury's orbit may be the most intriguing in the Solar System for another reason! As seen a bit below in the center column, the orbit of Mercury "rotates" around the Sun! This phenomenon is called the "Precession of Perihelion", and the orbits of all celestial bodies exhibit a similar motion, though to a significantly lesser degree. It is inclined to the Ecliptic more than any other orbit of a major planet, and it also has the highest eccentricity! Moreover, as we have already seen, the fleet planet's orbit and spin are synchronized more than those of any other major planet! ![]() Among the orbits of the eight major planets, Mercury's can be said to be the "orbit of superlatives".
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