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What was the eighth planet between 1979-1999?
The eighth planet during those years was Pluto. Its orbit crosses that of the planet Neptune. However, Pluto is now no longer considered to be a planet.
When Pluto was considered a planet why was neptune the farthest planet from the sun from 1979 to 1999?
Neptune's orbit is more elliptical than Pluto's, causing their orbits to sometimes intersect. From 1979 to 1999, Neptune's elliptical orbit brought it closer to the sun than Pluto, making Neptune the farthest planet from the sun during that time.
Between 1979 and 1999 Pluto was closer to the sun then what planet?
t can change it isn't always exatly the same at least I don't think so
What planet was farthest from the sun until 1999?
The planet that was farthest from the Sun from February 7, 1979 until February 11, 1999 was Uranus. Though Pluto was considered the outermost planet in the solar system since its discovery, its highly elliptical orbit sometimes brought it closer to the Sun than Uranus.
Which planet was the last planet from 1979-1999?
Pluto
Why did neptune become the second farthest planet from 1979 to 1999?
Pluto was one of the nine recognised planets back then, yet for a time it was the 8th furthest planet, since is comes inside Neptunes orbit for 20 years each orbit.
Which planet orbits crosses Pluto's every 248 years?
Pluto's orbit is 248 years. Pluto has an elliptical orbit that takes it closer to the Sun than Neptune, for 20 years, out of its 248 year orbit of the Sun. So every 228 years, Pluto's orbit crosses Neptune's orbit. This last happened between 1979 and 1999.
Why did neptune become the farthest planet from 1979 to 1999?
Plutos orbit is highly eccentric - during one rotation of the sun its distance from the sun can vary considerably. For 20 years of each of its orbit - a small fraction, it is closer to the sun than Neptune, which has much more of a regular orbit. Neptune is now the furthest planet again as of 2006. This time its for another reason - Pluto is no longer classed as a planet, but is instead a Dwarf Planet.
What is the thing that passes into Neptune's orbit?
Pluto takes about 248 years to orbit the sun and for about 20 years of that, it passes inside Neptune's orbit. This last happened between 1979 and 1999.
Until 1999 which planet was the farthest?
it used to vary between neptune and Pluto due to plutos unusual orbit. but since Pluto was declared not a planet. it is neptune.
Why is the neptune the farthest planet until 1999?
Pluto's orbit had finished it cut throught Neptune's Orbit.
What planet was to the farthest from the sun until 1999?
Pluto used to be the outermost planet, except that sometimes it became Neptune because Pluto's elliptical orbit is far from circular. From 1979 to 1999 Neptune was the farthest planet from the Sun and remains the farthest from the Sun today, because Pluto us no longer defined as a planet.
