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How did Copernicus explain the retrograde motions of the planets?
All the models explain retrograde motion because it is such an obvious phenomenon. In Copernicus's model an outer planet goes into retrograde motion when the inner planet overtakes it so that it appears from the inner planet to be going backwards along the ecliptic.
What planet retrograde around the sun?
Planet retrograde is when the planet appears, from the Earth point of view, to be orbiting opposite from its normal direction around the sun. Basically, it looks like its going backwards. It usually occurs when Earth overtakes a planet in its orbit. This video here at the link below shows a good example of what retrograde looks like. The top part of the video shows the movement we see from Earth while the bottom shows the planet's actual movement.
What does it mean when Mercury is in retrograde?
When a planet is "in retrograde"; it appears to be moving backward in the night sky. Of course, it's not actually moving backward; that';s just an optical illusion caused by planets orbiting the sun at different speeds. When one overtakes the other, it can look like the other is moving backward from our vantage point on Earth.As for astrological implications, everyone complains about Mercury being in retrograde because it is serious bad news. According to astrology (which, I should note, is not real science), Mercury governs travel and communication, and when it’s in retrograde, you can expect problems in those areas—anything from a poorly worded email and slight flight delays to screaming matches and car crashes.Mercury is in retrograde until March 9, so hold on until then.
Who discovered the retrograde motion of the planets?
Retrograde motion is apparent (obvious) in the night skies and even prehistoric people were able to observe this "irregularity". Retrograde motion is documented even in prehistoric-dated carvings, in caves. This motion was a natural phenomenon to them, anyway, rather than an irregularity. The "evening star" is followed pretty fast (in terms of days) by a "morning star". That's Venus what looks like during its retrograde motion. It's very typical and it happens for long periods of time (in terms of years) during approximately the same solar-calendar day of a season, every 8 years (the "ninth-year" cycle). Setting an example, Venus is going (to be) retrograde in the early spring in (the 21st century: 2001, 2009,) 2017, 2025, 2033, 2041, 2049,... That's inevitable and plain to see, for earth-dwellers! Venus is going to be retrograde in late autumn this year (2010) and this will happen again in 2018, 2026, 2034, 2042, and so on ... Philosophers and scientists at a later time tried to explain and decipher this phenomenon and proposed some models, like the Epicycles (proposed by Ptolemy). At last, the introduction of the telescope unclouded this mystery, anyway. (Believe me, it has been an experience for me to look for the first time at the four major satellites of Jupiter through a telescope. No human unaided eye can be thus penetrating (magnifying) like a telescope does.)
What geometric arrangements did ptolemy use to explain retrograde motion?
Earths faster motion makes Mars appear to be going backwards, the backwards motion, in fact, is what caused retrograde motion. --Ptloemy used Epicycles to explain how geocentrical models worked.
When you see Saturn going through a period of apparent retrograde motion it means?
When Saturn appears to be in retrograde motion, it means that from Earth's perspective, Saturn is moving backwards in its orbit. This optical illusion occurs when Earth, which has a faster orbit, passes Saturn in its orbit around the Sun. Retrograde motion is a regular occurrence for outer planets like Saturn as seen from Earth.
Saturn going through a period of apparent retrograde motion?
Saturn appears to go through retrograde motion when it orbits the Sun at a slower pace relative to the Earth's orbit. This phenomenon creates an illusion where from Earth, Saturn appears to be moving backward in its orbit. Retrograde motion occurs when planets are at specific points in their orbits relative to Earth.
Describe what produces the retrograde motion of mars. what geometric arrangement did Ptolemy use to explain this motion?
Earths faster motion makes Mars appear to be going backwards, the backwards motion, in fact, is what caused retrograde motion. --Ptloemy used Epicycles to explain how geocentrical models worked.
How did Copernicus explain the retrograde motions of the planets?
All the models explain retrograde motion because it is such an obvious phenomenon. In Copernicus's model an outer planet goes into retrograde motion when the inner planet overtakes it so that it appears from the inner planet to be going backwards along the ecliptic.
What planet retrograde around the sun?
Planet retrograde is when the planet appears, from the Earth point of view, to be orbiting opposite from its normal direction around the sun. Basically, it looks like its going backwards. It usually occurs when Earth overtakes a planet in its orbit. This video here at the link below shows a good example of what retrograde looks like. The top part of the video shows the movement we see from Earth while the bottom shows the planet's actual movement.
Will a planet in retrograde motion rise in the east or west?
The planet will still rise in the east and set in the west. The "retrograde" motion is relative the stars, and to its previous position; you won't see it move moment to moment, but night after night, you can see that it normally creeps one way across the sky, but for a couple of weeks near the conjunction, it will seem to creep the other way across the sky before going back to its normal direction.
Does Earth go into retrograde?
Oh, sweetheart, Earth doesn't go into retrograde like some of the other planets do. We just keep on spinning in our regular orbit around the Sun, bringing us all the beauty and wonders of nature every day. Just trust the universe's gentle rhythm - there's magic in every little transitions.
What does it mean when Mercury is in retrograde?
When a planet is "in retrograde"; it appears to be moving backward in the night sky. Of course, it's not actually moving backward; that';s just an optical illusion caused by planets orbiting the sun at different speeds. When one overtakes the other, it can look like the other is moving backward from our vantage point on Earth.As for astrological implications, everyone complains about Mercury being in retrograde because it is serious bad news. According to astrology (which, I should note, is not real science), Mercury governs travel and communication, and when it’s in retrograde, you can expect problems in those areas—anything from a poorly worded email and slight flight delays to screaming matches and car crashes.Mercury is in retrograde until March 9, so hold on until then.
What does stagnant mean?
Stagnant means "not moving" or "standing still". If referring to the planets in Astrology this refers to a period when the planet stops in the sky, as viewed from earth, before going retrograde or resuming direct motion.
What does stagnant?
Stagnant means "not moving" or "standing still". If referring to the planets in Astrology this refers to a period when the planet stops in the sky, as viewed from earth, before going retrograde or resuming direct motion.
What stagnant mean?
Stagnant means "not moving" or "standing still". If referring to the planets in Astrology this refers to a period when the planet stops in the sky, as viewed from earth, before going retrograde or resuming direct motion.
Who discovered the retrograde motion of the planets?
Retrograde motion is apparent (obvious) in the night skies and even prehistoric people were able to observe this "irregularity". Retrograde motion is documented even in prehistoric-dated carvings, in caves. This motion was a natural phenomenon to them, anyway, rather than an irregularity. The "evening star" is followed pretty fast (in terms of days) by a "morning star". That's Venus what looks like during its retrograde motion. It's very typical and it happens for long periods of time (in terms of years) during approximately the same solar-calendar day of a season, every 8 years (the "ninth-year" cycle). Setting an example, Venus is going (to be) retrograde in the early spring in (the 21st century: 2001, 2009,) 2017, 2025, 2033, 2041, 2049,... That's inevitable and plain to see, for earth-dwellers! Venus is going to be retrograde in late autumn this year (2010) and this will happen again in 2018, 2026, 2034, 2042, and so on ... Philosophers and scientists at a later time tried to explain and decipher this phenomenon and proposed some models, like the Epicycles (proposed by Ptolemy). At last, the introduction of the telescope unclouded this mystery, anyway. (Believe me, it has been an experience for me to look for the first time at the four major satellites of Jupiter through a telescope. No human unaided eye can be thus penetrating (magnifying) like a telescope does.)
