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Retrograde motion in astronomy is, in general, orbital or rotational motion of an object in the direction opposite the rotation of its primary, that is, the central object (right figure). It may also describe other motions such as precession or nutation of an object's rotational axis .
The term retrograde is from the Latin word retrogradus – "backward-step", the affix retro-meaning "backwards" and gradus "step". Retrograde is most commonly an adjective used to describe the path of a planet as it travels through the night sky, with respect to the zodiac, stars, and other bodies of the celestial canopy. In this context, the ...
Mercury retrograde is here August 23rd through September 15th, 2023. Let me, a professional astrologer, break it down for you. So, What Does Mercury Retrograde Actually Mean?
The retrograde motion of a planet is its apparent backward motion through the sky caused by the Earth travelling past a slower-moving outer planet, or when the Earth is itself passed by a faster-moving inner planet. [8] The outer planets are retrograde for over 40% of the time.
Mercury retrograde, which happens three to four times a year, is not only the most common retrograde of all; it’s arguably the most well-known celestial occurrence, too. And it’s an important one.
The first Mercury retrograde of 2024 spans from April 1 to 25. The effects of the retrograde period have already started. Mercury entered its pre-retrograde shadow on March 18. Mercury will be in ...
Sidereal time was defined such that the March equinox would transit the meridian of the observatory at 0 hours local sidereal time. [ 7 ] Beginning during the 1970s, the radio astronomy methods very-long-baseline interferometry (VLBI) and pulsar timing overtook optical instruments for the most precise astrometry .
Five planets are going to be retrograde in the summer of 2024. Here are the dates for Mercury retrograde, Venus retrograde, Saturn retrograde, Neptune retrograde, Pluto retrograde and more.