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According to copernicus the retrograde motion for mars must occur?
at opposition when the earth overtakes mars and passes between mars and the sun
How did Nickolaus Copernicus account for the retrograde motion of the planets?
The retrograde motion of the planets is well modelled by both the Ptolemaic system and the Copernican system, and by the other models. But the Copernican system explains it more simply because, for example, Mars's retrograde motion is caused simply when Mars is overtaken by the Earth, which goes more quickly round the Sun. Thus an observer on the Earth sees Mars appearing to go 'backwards' on the ecliptic around the time of closest approach (opposition). This can be easily demonstrated by assuming simple circular orbits.
Why does Mercury undergo retrograde motion more than the other planets?
It doesn't. You may be thinking of Mars. Mars shows this effect because its distance and orbital speed are suitable.
Do the planets in the solar system all move in retrograde motion?
YES. There are several meanings to "retrograde" in astronomy. In this case, I am assuming you mean the apparent "backwards" orbital motion of a planet that is sometimes seen. This is very obvious in the case of Mars. Also, all the outer planets show this "apparent retrograde motion". It's easy to forget, but Mercury and Venus also show this behaviour, but in a slightly different way.
What is it called when two planets switch orbit?
planets dont "switch" orbit, but there are those that orbit each other, and those, like mars, that have retrograde motion, which makes it appear to orbit backwards
What is the curious backward motion associated with Mars?
Retrograde
What is the motion in which Mars appeared to reverse its normal direction of motion in the sky?
Retrograde motion
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.
What movement does Mars actually experience from January through August?
Retrograde Motion
When mars is in retrograde motion will it appear brighter or dimmer?
Brighter, since Mars is closest to Earth in its orbit and in a full phase as viewed from Earth.
According to copernicus the retrograde motion for mars must occur?
at opposition when the earth overtakes mars and passes between mars and the sun
How did Nickolaus Copernicus account for the retrograde motion of the planets?
The retrograde motion of the planets is well modelled by both the Ptolemaic system and the Copernican system, and by the other models. But the Copernican system explains it more simply because, for example, Mars's retrograde motion is caused simply when Mars is overtaken by the Earth, which goes more quickly round the Sun. Thus an observer on the Earth sees Mars appearing to go 'backwards' on the ecliptic around the time of closest approach (opposition). This can be easily demonstrated by assuming simple circular orbits.
Why does mars appear to travel from east to west during part of the year and from west to east during the other part of the year?
We call this "retrograde" motion. It is caused by the fact Mars is in an orbit farther out from the Sun than Earth is, but Earth and Mars are both circling the Sun. So every time the Earth starts to catch up to Mars and then PASS Mars, Mars "appears" to move backwards as we pass by.
Why does Mercury undergo retrograde motion more than the other planets?
It doesn't. You may be thinking of Mars. Mars shows this effect because its distance and orbital speed are suitable.
What does a planet do when in retrograde motion?
Nothing special. The idea of "retrograde motion" is a trick of perspective; nothing actually goes "retrograde". Here's how it works. We usually talk about Mars when referring to "retrograde" motion, but it happens (to a lesser extent) to all of the outer planets. All the planets orbit the Sun in the same direction (counterclockwise as seen from high above the Earth's north pole). Nothing ever turns and goes the other way. Closer-in planets orbit faster than further-out planets. When Mars goes retrograde, what is really happening is that the Earth is about to overtake Mars in our respective orbits, and move ahead of it. Mars is moving more slowly, and as the Earth passes Mars, Mars SEEMS TO move backwards. It's just as if you were jogging on an inner lane on the track and you pass somebody in an outer lane. The other jogger isn't moving backwards; it just seems that way because you are moving faster, and getting ahead of him.
What happens when Mars experiences retrograde motion?
Nothing special. Mars appears to go backwards when the Earth overtakes it in its orbit, because the Earth goes round the Sun more quickly.
Do the planets in the solar system all move in retrograde motion?
YES. There are several meanings to "retrograde" in astronomy. In this case, I am assuming you mean the apparent "backwards" orbital motion of a planet that is sometimes seen. This is very obvious in the case of Mars. Also, all the outer planets show this "apparent retrograde motion". It's easy to forget, but Mercury and Venus also show this behaviour, but in a slightly different way.
