System
Nepture is the
plonet
from the sun
Answers
Answer:
It is the only planet that is invisible to the unaided eye, thus it eluded ancient astronomers until it was officially discovered in 1846 by Le Verrier and Johann Galle.
The greatest factor of the discovery was the planet Uranus, whom astronomers were calculating its orbit and observed that Uranus wasn’t following their models.
The perturbed orbit of Uranus forced astronomer Urbain Le Verrier to conclude that another undiscovered planet must be at fault. He predicted where it should be, and astronomer Johann Galle found it one degree away from the predicted point thus making Neptune the first planet to be discovered by mathematical calculations and predictions.
Neptune was given the name of the roman god of the sea due to its bluish-ocean like color. Its satellites also received names of water deities.
Neptune’s color is believed to be influenced by the presence of methane in its atmosphere and also an unknown factor.
Neptune has an average distance of 2.8 billion miles/4.5 billion kilometers or 30 AU away from the Sun, being the furthest of the eight planets. Currently it is 29.4 AU away from Earth with its light taking up to 4 hours to arrive to us. Neptune’s actual position can be checked online as the planet is constantly tracked.
As a result from its distance, it also has the longest orbital duration completing a trip around the Sun in about 165 years.
However, one rotation or day on Neptune is completed in 16 hours.
Until Pluto’s eccentric orbit was understood and its status dropped from that of a planet to a dwarf planet, Neptune was considered the second furthest planet from the Sun.
Neptune has a radius of 15.387 miles or 24.764 kilometers, about four times wider than Earth, and a diameter of 49.244 km or 30.598 mi being the fourth largest planet of the solar system.
Neptune and Uranus are termed as ice giants because they are smaller and have different compositionality from the gas giants Jupiter and Saturn. Neptune being made out of layers of helium 29% and 80% hydrogen with traces of methane.
It has a core about 1.5 times the size of Earth with twice its pressure: 7 Mbar or 700 GPa, making up about 45% of the planet’s mass, but it does not have a surface.
This is a characteristic of the ice giants, their “rocky”, icy cores who are proportionally larger than the amount of gas they contain, unlike the gas giants.
Neptune is the smallest ice giant with a mass of 1.024 × 10^26 kg but has the greatest density out of all the gas giants, about 1.64 g/cm³.
It has an average temperature of -214 degrees Celsius;-353 degrees Fahrenheit, however Uranus is the coldest ice giant, and for that fact the coldest of all planets in the solar system.
Neptune however, excels from something else. It has the fastest wind speed of any planet. Wind speeds blowing westward on the equator reach up to 2,160 kilometers or 1.324 miles per hour, nearly a supersonic flow. Most winds travel retrograde to the rotation of the planet they are 5 times stronger than the strongest winds recorded on Earth, breaking the sound barrier.
Neptune has a total of 6 known rings with some containing ring arcs or clusters of dust particles in a ring.
Neptune also has 14 known moons, the largest is called Triton, and it is the seventh largest known moon of any planet, also being the only one in the solar system that orbits in retrograde or in opposition to the planet’s rotation. This means that it is a captured object by Neptune’s gravity. Due to its size it is even believed it is a captured dwarf planet.
Answer:
Yes.....it is a planet of the Sun. It is also the last planet of the Sun