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Animation_of_Parker_Solar_Probe_trajectory.webm (WebM audio/video file, VP9, length 1 min 27 s, 560 × 420 pixels, 156 kbps overall, file size: 1.61 MB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Animated explanation of the mechanics of a retrograde orbit of a planet Archived 2013-10-05 at the Wayback Machine, University of South Wales; NASA: Mars retrograde motion; Double sunrises, 3DS Max Animation – illustrating the case of Mercury (the animation of an imaginary apparent retrograde motion of the Sun as seen from Earth begins at 1:35)
The sun and planet gear converted the vertical motion of a beam, driven by a steam engine, into circular motion using a 'planet', a cogwheel fixed at the end of the connecting rod (connected to the beam) of the engine. With the motion of the beam, this revolved around, and turned, the 'sun', a second rotating cog fixed to the drive shaft, thus ...
The images may also function as animation frames in an animated GIF file, but again these need not fill the entire logical screen. GIF files start with a fixed-length header ("GIF87a" or "GIF89a") giving the version, followed by a fixed-length Logical Screen Descriptor giving the pixel dimensions and other characteristics of the logical screen.
A gravity assist, gravity assist maneuver, swing-by, or generally a gravitational slingshot in orbital mechanics, is a type of spaceflight flyby which makes use of the relative movement (e.g. orbit around the Sun) and gravity of a planet or other astronomical object to alter the path and speed of a spacecraft, typically to save propellant and reduce expense.
Animation of Lucy's trajectory around Sun Lucy · Sun · Earth · 52246 Donaldjohanson · 3548 Eurybates · 21900 Orus · 617 Patroclus. Donaldjohanson is a member of the Erigone family , [3] [4] a large carbonaceous asteroid family of nearly 2,000 known members, which is named after its parent body 163 Erigone
The Sun, in its apparent motion along the ecliptic, crosses the celestial equator at these points, one from south to north, the other from north to south. [6] The crossing from south to north is known as the March equinox , also known as the first point of Aries and the ascending node of the ecliptic on the celestial equator. [ 10 ]