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#retrograde

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AllanICarswellObservatory
Happy Space Science Saturday! Did you know that today Saturn begins its retrograde motion? Normally, Saturn moves eastward against the background of stars, but during retrograde it appears to pivot and move westward through the constellations. This apparent backward motion isn’t because Saturn actually reverses its orbit, but rather because of Earth’s own motion around the Sun. As Earth passes Saturn in its orbit, our changing perspective makes Saturn appear to move backward in the night sky.


#Orbit #Retrograde #Saturn #SpaceExploration #Space #Astronomer #Astronomy #SpaceScienceSaturday #YorkU #Observatory #AllanICarswellObservatory #Stargazing #YorkUniverse #Telescope #Planets #Stars #Science #Physics #Toronto #YorkUObservatory #AICO #Cosmos #LearnAstronomy #SpaceFacts
#spacefacts
☆⋆Okie Space Queen

Heard someone talking today about #Mercury "going backwards" and I think they misunderstood what #retrograde is.

Apparent retrograde motion is displayed for every body that has a different sidereal orbital period. (the time it takes for the body to complete one revolution around the sun)

This is a photo illustrating #Mars retrograde but yes the same concept.

I ran out of room. Read the alt-text for an explanation of what is happening in this picture.

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