Solar system

The Solar System is the gravitationally bound planetary system of the Sun
In the Solar system Sun is the first (star) in there line
And last planet is Neptune
or Solar system's Age 4.56 billion years

·sun is center of solar system It is a perfect sphere of hot plasma
 It is a most important source of energy for life on Earth.
Its diameter is about 1.3 million kilometer
Or 99.86% of the total mass covered of the Solar System. And sun bigger than 30,000 times in our earth

·Mercury is the smallest and nearst planet in the Sun it is the shortest of all the planets in the Solar System Its orbital period around the Sun of 87.97 days
Mass-3.3011×1023 kg=0.055 Earths

·Venus is the second planet from the Sun, orbiting it every 224.7 Earth days.
It has rotates in the opposite direction to most other planets it's a second planet of solar system and it's also 2nd brightest natural object in the night sky after the Moon
rarely, visible to the naked eye in broad daylight. and it's
Volume-9.2843×1011 km3=0.866 Earths
Mass-4.8675×1024 kg7=0.815 Earths

·Earth is the third planet from the Sun, and the only astronomical object known to harbor life
Earth formed over 4.5 billion years ago
Earth orbits around the Sun in 365.26 days=1years,and 366.26 times rotate its axis
Surface area
510072000 km2=196940000 sq mi
It's 148940000 km2 land area and
361132000 km2 water area
Earth's mass is 5.97237×1024 kg [1.31668×1025 lb] (3.0×10−6)
And Over 7.6 billion humans live on Earth and depend on its biosphere and natural resources for their survival.

·Mars is the fourth planet from the Sun and the second-smallest planet in the Dollar System after Mercury,and the human's next mission is find life on mars because
Scientist find sheels of ice and and water on mars so thats the point to next expend generations in some and few years
Surface area-144798500 km2=(55907000 sq mi; 0.284 Earths)
Volume-1.6318×1011 km3=(0.151 Earths)
Mass-6.4171×1023 kg=(0.107 Earths)

·Jupiter is the fifth planet from the Sun and the largest in the Solar System
And it's Volume-1.4313×1015 km3 (3.434×1014 cu mi)=1,321 Earths total
is a giant planet with a mass one-thousandth that of the Sun, but two-and-a-half times that of all the other planets in the Solar System combined. Saturn or Jupiter are totally are gassgaints.
Jupiter are made composed with 75%hydrogenAnd
its mass are 24%hellium 5% other elements
Jupiter has 79 known moons
The Jupiter discovered by Galileo Galilei in 1610.

·Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after the Jupiter. It is a gas giant with an average radius about nine times thats of Earth
 its larger volume Saturn is over 95 times more massive
Volume-8.2713×1014 km3 (1.9844×1014 cu mi)=763.59 Earths
Mass-5.6834×1026 kg=95.159 Earths
This core is surrounded by a deep layer of metallic hydrogen an deep layer of liquid hydrogen and liquid helium, and finally a gaseous outer layer. Saturn has a pale yellow hue due to ammonia crystals in its upper atmosphere.

·Uranus is the seventh planet from the Solar system It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. Uranus is the Naptune
scientists often classify Uranus and Neptune as "ice giants" to distinguishable them from the gas giants
Jupiter-Saturn's atmosphere same as on Uranus its primary composition of hydrogen and helium, but it contains more "ices" such as water, ammonia, and methane, along with traces of other hydrocarbons
Uranus is the coolest planet in the our Solar system
Surface area
8.1156×109 km2
15.91 Earths
Volume
6.833×1013 km3
63.086 Earths
Mass
(8.6810±0.0013)×1025 kg
14.536 Earths
GM=5,793,939±13 km3/s2
Like the other giant planets, Uranus has a ring system, a magnetosphere, and numerous moons

·Neptune is the eighth and farthest known planet from the Sun in the Solar System. In the Solar System,the third very massive planet, and the to densest giant planet. Neptune is 17 to 18 times the mass of Earth
Surface area-7.6183×109 km2=14.98 Earths
Volume-6.254×1013 km3=57.74 Earths
Mass-1.02413×1026 kg
=17.147 Earths,5.15×10−5 Suns
Neptune is not visible to the unaided eye and is the only planet in the Solar System found by mathematical prediction rather than by empirical observation

And In the Over Solar system's
Nearest star
Proxima Centauri  (4.25 ly)
Alpha Centauri (4.37 ly)
Orbital speed-220 km/s