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Because opposition is when The Sun, the Earth and the planet are in a line. The planet appears opposite the Sun in the sky and the distance between Earth and planet is at a minimum.

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Q: Why is opposition the best time to view the outer planets?
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How do you know if a plant is an inner or outer plant?

Inner planets orbit inside the orbit of the Earth, can only be seen in the morning or evening sky and are never seen as full disks form the Earth. Outer planets orbit further out than the orbit of Earth and can be seen from time to time as full disks in 'opposition' or overhead at midnight.


Comparing inner and outer planets movement?

The inner planets travel faster around the Sun because they are closer, while the outer planets take more time. The outer planets spin faster on their axis than the inner planets.


What is the difference of The rotational period of the inner and outer planets?

Rotational time of the planets is random (the length of the planet's day), but the outer planets do spin faster than the inner planets.


How do inner planets differ?

Inner planets differ from outer planets because they have rocky core (excepting Pluto), and the are much smaller than outer planets, which are bigger and take more time to orbit Sun than inner planets because of their location. Outer planets are farther from the Sun than inner planets.


How are inner planets and outer planets different?

alsoooooinner--- outer---close to the sun far from the sunsmall in size big sizeterrestial rings (4)no rings more moonsless moons deep atmosphereorbit time short orbit time long


When planets move western and then return the normals motion?

It is called retograde motion which occurs round the time of opposition (outer planets only). Normally planets appear to move from west to east, in other words if they are in one position on a certain date, they will be east of that position 365 days later. The far-off planets Uranus and Neptune move only a little way along the ecliptic each year: 4.3 degrees for Uranus and 2.2 degrees for Neptune. However, when the planets are at opposition (exactly opposite the Sun, so they are south at midnight), they appear to be moving backwards (east to west) as the Earth overtakes them in their orbit. This is called retrograde motion, when they appear to move east to west from one night to the next. It happens for a few days around opposition for all the outer planets. The early orbital models of Ptolemy and Copernicus were able to predict retrograde motion correctly.


Why are the inner planets so much smaller then the gass giant outer planets?

They believe that the inner planets had gases at one point in time, but the sun burned them away.


Why might the solar wind have a stonger effect on inner planets than on outer planets?

Because they are closer to the sun and so they get the most of it so by the time it gets to the outer planets they get very little of the solar wind ms.Pribils 3rd period student


How do the orbits of the outer planets compare to the inner ones?

The outer planets take much more time and also travel longer to complete a whole orbit around the Sun, than the inner ones.


What are all outer planets except pluto known to be?

The outer planets of the solar system are Jupiter, Saturn, Uranus, and Neptune. Pluto was also included as an outer planet from the time it was discovered in 1930 until being reclassified as a dwarf planet in 2006.


Who has larger solid core inner planets or outer planets?

i have absolutely no ideato hard for mesorry cant help you today maybe another time


When did the outer space planets and people created?

All the solar planets formed at more or less the same time. The only people we know of are the ones on Earth.