 |
| Fact about the solar system and planets |
study of the universe is known as: Cosmology (a branch of astronomy, that studies the origin and evolution of the universe)
approximately number of galaxies are: 170 billion galaxies
big bang theory is about the origin of the universe
BigBang was an explosion that occurred: 14 billion years ago
Earth's age from the big bang's time is: 10-20 billion years (googled: 13.7 billion years)
Earth is estimated to be 4.54 billion years old, plus or minus about 50 million years.
The brightest planet in the solar system is JUPITER
Its sequence is: My very easy method just speeds up nothing (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune)
center is sun
planets are 8
Terrestrial (inner planets) are: Mercury, Venus, Earth, Mars
Terrestrial made up of: silicate rock, metals
its surface is : Solid surface
these are close to: SUN
Venus's atmosphere is: thick
Mercury's atmosphere is: thin
Their atmosphere is: Thin to thick atmosphere
Gas Giants (outer Planets) are: Jupiter, Saturn, Uranus, Neptune
large planets
mostly hydrogen gas
the surface is: gas type
small amount of rocks
Categories
Eight Planets
Satellites (moon)
Dwarf Planets
Comets
Particulars
Facts About Sun
Radius: 432168.6 miles
Diameter: 1.3927 million kms
it is ball of: gas
by atoms: 91% hydrogen
by atoms: 8.9% Helium
By mass: 70.6% hydrogen
By mass: 27.4% helium
sun has no moon
it has planets & their moon
sun's light takes 8.5 minutes to reach on earth
no rings
Facts about mercury
first planet
it's period of rotation around the sun is 88 days
it is nearest to the sun, fastest, smallest and 2nd dense planet and 2nd hottest planet
it is hottest because it has no atmosphere
no atmosphere, no moon, temperature max. +427 oC, Low -173 oC
distance from sun 57.9 million KM
Rotation on own Axis is: 58 days 15 hours and 30 minutes
Facts about Venus
it is 2nd planet
its name Venus is: Roman goddess of love and beauty
its period of rotation around the sun is 224.7 days
it is Hottest, Brightest, closest to the earth, No. 6th in size
reason why it is hottest than mercury (closest to sun) : due to layer of carbon dioxide
it has no moon
its surface temperature is 462 oC
Distance from sun is 108.2 million KM
rotation on own axis is: 243 days 14 h
earth sister planet: due to size and mass matched with earth
known as: morning and evening star
east to west rotation
venus and uranus rotattion: east to west , all others rotate west to east
largest quantity of carbon dioxide i.e 95 % is the reason of hotness
Facts About Mars
It is 4th planet
it is known as 'Red Planet', due to iron oxide
Mars means: Roman god of war
Period of Rotation around the sun is: 687 days
no 7th in size in complete solar system
two natural satellites: Phobos & Diemos
Surface temperature -87 oC to -5 oC
Distance from sun is 227.9 million KM
Rotation on its own axis is: 24 h, 37 min & 22 sec
Mars is a home of Olympus Mons *tallest mountain in the solar system
Facts about Jupiter
its is 5th planet
Period of rotation around the sun is 12 years
no. 1 in size, biggest planet
79 natural satellites, (Maximum in number),
surface temparature -108 oC
Distance from sun is 778.3 million KM
Rotation on its own axis is: 9h, 50 min, & 30 sec, smallest day / shortest rotation time
planet 316201 named Malala on 11 april 2015, (planet b/w Mars & Jupiter)
planet 316201 is known as: Malala Asteroid (Malala yousif zai)
Jupitar's Moon 'Ganymede' is the largest moon in solar system
Ganymede also known as biggest moon in solar system
Facts about Saturn
it is 6th planet
Period of rotation around the sun is 30 years
no. 2 in size
surface temperature -139 oC
53 confirmed natural satellites, 'Titan & Rhea' are Largest
Distance from sun is 1427 million KM
rotation on its own axis is : 10h, 14 min
10 time bigger than earth
Facts about Uranus
It is 7th planet
period of rotation around the sun is 84 years
no. 3 in size, very cold & windy
27 known natural satellites
distance from the sun is 2869.6 million KM
16h, 10 min (rotation on its own axis)
discovered in 1781 by Astronomer William Herschel
Opposite rotation
NUS planets (Venus, Uranus) rotates in opposite direction i.e East to West
Facts about Neptune
it is 5th planet
Period of rotation around the sun is 165 years, largest time to go around the sun
no. 4 in size, very cold & windy, Coldest planet
distance from sun is 4496.6 million KM
18 h (Rotation on own axis)
Facts about Earth
Period of rotation around the sun is 365.25 days
no. 5 in size
1 known natural satellite (moon)
distance from sun is 149.6 million KM
23h, 56 min, 40 sec (rotaion on own axis)
closer to the sun in 'January'
Solar Eclipse (suraj girhan) : Moon comes between sun and earth
Lunar eclipse (chand girhan) : Earth comes between sun and moon
General Facts about solar system
watery planet is: earth
reddish planet in night sky is: Mars
in 1610, Galileo Galilei discovered four moons of: Jupiter planet
the planet mercury is difficult to be observed most of the time because: it being too close to the sun, gets hidden by the glare of the sun.
comets revolve around: Sun
venus is known as: Earth's twin
parsec is the unit of measurement of: Astronomical distance
light coming from stars gives the idea of their: Temperature
period of one revolution of sun around the centre of galaxy is called: Cosmic year
Super nova is dying star
laws of planetary orbits discovered by: Johanries Kepler
planets are kept in motion in their respective orbits by: Gravitational and centrifugal force
time required by moonlight to reach the earth is: 1.3 sec
if there is no sun, the colour of sky would be: Black
saturn rings discovered by: Galileo
solar corona mainly consists of: molten lava
Foucault experiment proof: the rotation of earth
radiant energy of the sun transmitted in: short waves
blackhole is: contracted star with intense gravitational pull
great bear is: a constellation
Halley's comet appears once in a period of: 76 years
to a space traveller on moon, lunar sky during day time appears: Black
brightest star in the night (nithy) sky is: Sirius
outermost layer of the sun is called: Corona
tides in the sea have stored in them: hydraulic, kinetic, and gravitational potential energy
0 comments:
Post a Comment