Environmental Sciences, asked by nand5006, 1 year ago

I want to know about planets

Answers

Answered by SecretSupergirl11
1
Well
Hii
There are 8 planets in our solar system
They r:-
1.Mercury
2.Venus
3.Earth
4.Mars
5.Jupiter
6.Saturn
7.Uranus
8.Neptune
Hmm
U can remember them easily lyk
My Very Early Maid Just Served Us Noodles
HOPE IT HELPS
BROTHER OR SISTER

asam: wht
SecretSupergirl11: Did u lyk de answr #nand5006...
Answered by nams2
3
A planet is an astronomical body orbiting a star or stellar remnant that

is massive enough to be rounded by its own gravity,
is not massive enough to cause thermonuclear fusion, and
has cleared its neighbouring region of planetesimals.[a][1][2]
MercuryVenus
EarthMars
JupiterSaturn
UranusNeptune
The eight planets of the Solar System
The terrestrial planets
Mercury, Venus, Earth, and Mars
The giant planets
Jupiter and Saturn (gas giants)
Uranus and Neptune (ice giants)
Shown in order from the Sun and in true color. Sizes are not to scale.

The term planet is ancient, with ties to history, astrology, science, mythology, and religion. Several planets in the Solar System can be seen with the naked eye. These were regarded by many early cultures as divine, or as emissaries of deities. As scientific knowledge advanced, human perception of the planets changed, incorporating a number of disparate objects. In 2006, the International Astronomical Union (IAU) officially adopted a resolution defining planets within the Solar System. This definition is controversial because it excludes many objects of planetary mass based on where or what they orbit. Although eight of the planetary bodies discovered before 1950 remain "planets" under the modern definition, some celestial bodies, such as Ceres, Pallas, Juno and Vesta (each an object in the solar asteroid belt), and Pluto (the first trans-Neptunian object discovered), that were once considered planets by the scientific community, are no longer viewed as such.

The planets were thought by Ptolemy to orbit Earth in deferent and epicycle motions. Although the idea that the planets orbited the Sun had been suggested many times, it was not until the 17th century that this view was supported by evidence from the first telescopic astronomical observations, performed by Galileo Galilei. At about the same time, by careful analysis of pre-telescopic observation data collected by Tycho Brahe, Johannes Kepler found the planets' orbits were not circular but elliptical. As observational tools improved, astronomers saw that, like Earth, the planets rotated around tilted axes, and some shared such features as ice caps and seasons. Since the dawn of the Space Age, close observation by space probes has found that Earth and the other planets share characteristics such as volcanism, hurricanes, tectonics, and even hydrology.

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