Universe.
THE Univers is commonly Defined as Theototality of Everything That Exists incol-ding all physical matter and Energy, Stars, Glaxies, and the contents of intergalactic, space, The study of universe is Know as Cosmology, Cosmos, (universes)2(cience)universe has no.
,,Limit...!
Galaxy,,
A Galaxy is a vast system of Billions of
Stars,which also contains a large Number
of Gas clouds(mainly of hydrogen gasq) and
dust,isolated in space from similar !
system,There are about 100 billion galaxy
(1011galaxies) in the universe,each,Galaxy
has,on an average,100billion stars(1011 stars)
So,the total number of stars in The unives
The Milky Way Galaxy is the home of the Earth and our Solar System.It isspiral in shape Milky Way Galaxy was formed 5 billion years after the Big Bang,Latest known Galaxy is the Dwarf Galaxy.
BiG BANG THEORY
All the matter in the universe was originally a
।concentrated lump calledprimeval atom.
According to the modern thought, universe
can be classified into two parts namely (a)
Atmosphere and (b) Space.Origin of the
universe is explained by the Big Bang Theory,
formulated and proposed by the Belgian
astronomer and cosmologist Georges
Lemaitre.Andromeda is our nearest galaxy.
Big Bang was an explosion that occurred 15
billion years ago, leading to the formation of
galaxies of stars and other heavenly bodies.
Since then, all the galaxies have been flying
away from one another causingexpansion of
the universe.
🌟 STAR🌟
Clumps of dust and gas in a nebula come together due to gravity and form stars.are made of hot burning gases They emit light of their own and are very large and very hot.Light takes about 4.3years to reach us from the next nearest star proxima centauri...!
SOLAR SYSTEMS
The solar system consists of the sun, the Eight planets and their satellites(orasteroids,comets meteors
THE ☀️ SUN
The Sun as a Fertilizing Entity We all know that requires insemination .
The Earth works on the same principle. From Nature's point of view,This starts with the Sun.Throughout nearly all of Humanity's time on this planet,The Earth has been regarded a sacred being,The Great Mother.
The Sun held an equally significant place in our forebears' world-view....!
Most of the ancient cultures regarded the Sun as the primary, masculine deity,Fertilizing the Earth in order to create life.talks of the Sun impregnating Mother Earth in order to create the incalculable number of different lifeforms that inhabit this planet.
The Sun behaves very much as a living body. It is known to pulsate rhythmically,its surface expanding and contracting 3km (1.8miles) every 160minutes. Its life-giving energies warm the atmosphere and penetrate deep into the ground to inseminate the elements and substances of the Earth.
The beneficial UVc rays which the ozone layer allows through,have todecelerate in order to unite with the receptive and passive female energies rising inside the Earth; these slower energies have to accel-erate,for fertilization can take place only if the two resonate with a sympathetic rate of vibration.
INEAR THE PLANTE 🌎
These are opaque bodies which continuously revolve around and arelighted by the Sun.
There are eight planets in the Solar system.
A ninth planet has been recently discovered by NASA named as Carla.
>The sequence of planets according to their distance from the Sun is Mercury,Venus,Earth, Mars,Jupiter,Saturn,Uranus, Neptune.,The sequence of planets according to their size (in, descending order i.e.from big to small) is Jupiter,Saturn,Uranus,Neptune,Earth, Venus,Mars,Mercury.
> Jupiter is the Biggest and mercury is the smallest planets of our solar system.
Classification of planets
> The Eight planets have been divided into two groups.all the planets ofa particular, Group have some common features. "Terrestrial planets' or'Rocky planets and' 'Jovian planets' or 'Gaseous planets' (Gas,giants) are the two groups of planets.
> The four planets nearest to the Sun-Mercury, Venus, Earth and Mars are called terestrial planets,because their structure is similar to the earth.Other four planets-Jupiter,Saturn, Uranus and Neptune are called Jovian planets.
Planets are classified into the following two groups inner and outer planets. These are separated by asteroid belt.:Inner Planets
Outer planets .
They include Mercury,Venus,Earth,They include Jupiter,Saturn, Uranus,Mars,Neptune etc.They are nearer to the sun.They are made up of dense metallicminerals.They move faster and have a shorter period of revolution.
They are far away from the sunThey aremade
up of hot Gases,mainly hydrogen and helium.
They move rather slowly and have a longer period of Revolution.They are all Gaseous bodies.They have Thin,rocky crust.They Have
A mantle rich in iron and Made of Gases Magnesium.They have a core of molten metals. They have Ring systems around them.They have thin Atmosphere.They have very few Natural satellites They have a Large number of Natural.
Mercury.
> Mercury is the closest planet to the Sun.
It is extremely hot planet.The planet has no water on it.Mercury planet has no Gases like CO, N, H2 and O2 which can act as building blocks of Life.
> Mercury planet has no protective blanket like Ozone around it to prevent us from harmful radiations.
 |
| Mercury |
Venus
> Venus is the second planet in distance from the Sun.This planet is nearest to the Earth and is also the brightest planet.Venus is known as the "Evening Star" as well as "Morning Star".
Venus is surrounded by a thick cloud cover, hence known as the"Veiled Planet"
> Venus is like the Earth in size and mass, and hence also known as the"Earth's twin". It also rotates clockwise like
Venus
>Venus is the hottest planet (even hotter than Mercury) of our Solar System, due to its veil of cloud.
> Venus has no water on it.There is no sufficient oxygen on the Venus.
Uranus.
>Uranus is about four times the size of the Earth.This planet appearsgreenish in colour because of methane gas present in it's atmosphere. Uranus was discovered in 1781 by Sir William Hersiel.Uranus is the 7th planet from the Sun.Uranus is the first planet to have been discovered by the use of a telescope. Uranus is the third biggest planet of the Solar System.Uranus is extremely cold,having surface temperature-190°C and is surrounded by 13 rings namely zeta (C)/R1986U2, 6, 5, 4, alpha (a), beta (B), eta (E), gamma (√), delta ( ), lambda (2.), epsilon (e), nu (v) and mu*( ).
Urunus
THE EARTH.
> Earth is the largest of the inner planets.
The Earth is 232° tilted on its axis and thus Makes 66½° Angle,takes 23 hours 56 minutes and 4.091 seconds to rotate on its Axis...!
it takes 365Days, 5Hours and 48 minutes to revolve around the SUN EARTH is known as the"watery planet"or the "blue planet"Due to the presence of huge amount of water on it.
>Earth is the only known planet which provides sustenance or life on it has a large quantity of oxygen which supports Life.
>The earth has all the essential elements Like carbon (in the form of CO₂), Hydrogen (H2), Nitrogen (N2) and oxygen (O2) which act as buildingblocks for the origin of Life.
>The Earth is neither too hot nor too cold. It has 'Goldilock Zone'.'Goldilock Zone' is the habitable zone of solar system where all mi are available for Life to sustain.
>The Earth has a lot of Water in the form of lakes, rivers and oceans for the growth and survival of life.The earth has enough Oxygen gas in its atmosphere for the survival of living beings through Breathing.
Earth
Moon.
The Moon is the only satellite of the Earth.
>It has a diameter of 3475km.
& it'scircumference is 10864km.
while its Orbit is elliptical.
The maximum Distance (Apogee) of the Moon from the earth is 4,06,000km.and minimum Distance (perigee) is 3,64,000km.It takes 27Days,7hours and 43minutes to rotate on its Axis(this period of about27½days is called the sideral -month) and Approximately the same period of Time it takes to revolve around the Earth.
>The moon'speriod of Revolution with Reference to the Sun is about (29.53days)29
Days12hours,44minutes and 2.8 seconds)
>This period is called a synodic month.only 59 per cent of the total surface of the moon is visible from the Earth.The bright part of the Moon is full of Mountains whereas the darkpatches are low lying plains.'Sea of Tranquility', made of the plain of Dust particles, is on the rear side of the moon, which always remains dark.The Highest Mountain on the moon is Liebuity mountain, which is 10,660 meter high.The moon has no Atmosphere,noTwilight and no Sound.The Temperature during Daytime is about 100°C and during night it drops down to about180°C.
The light from the Moon Takes 1.3seconds to reach the earth.The Size of the Moon is one-Fourth (1/4th) the Size of the Earth.
>Gravitational pull of Moon is one-sixth (1/6th) that of the Earth.
➤ Mainly Silicon, Iron, Magnesium Etc.elements are found on the Moon'ssurface.
>The study of the Moon is called"Selenology".
Moon is also known as the fossil planet.
Moon
Mars.
* Iron-rich red soil and pink sky of Mars give it the name, "Red Planet".
* Phobes and Demos are two satellites of Mars
Mars
Jupiter.
*Jupiter is the largest planet of the Solar System.Jupiter is also known as winter planet as its average temperature is very low (-148°C)
Jupiter
Saturn.
*Saturn is the second largest planet in the Solar System.Saturn has bright concentric rings which are made up of ice and ice-cov
-ered dust particles which revolve around it.
Saturn
Neptune.
>Neptune is the 8th planet of the Solar System
The temperature on the surface of Neptune remains low.Neptune is very similar toUranus and can be considered as its twin.
> Neptune is surrounded by methane rings of sub zero temperaturePluto is not a Planet now
Polto.
> On the basis of the new definition of planet given by the IAU(International Astronomical Union),the world's top institution on space
science research,leading astronomers participating in IAU's meet at Prague (Czech Republic) on August 24, 2006,declared that Pluto would no logner remain a planet.Under the IAU's new guidelines,the number of planets in the Solar System has thus been reduced from nine to eight. Its merits mentioning here that,prior to this decision, Pluto had been holding the planetary status since its discovery in 1930 by ClydeTombaugh.
>Now,with the omission of Pluto from the Solar System,its membership has been restricted to the eight"classical"planets, namely Mercury,Venus,Earth,Mars,Jupiter, Saturn,Uranus and Neptune.Pluto Gets a Numerical DenominationWeeks after it was demoted to a sub-planetary status,Pluto was given a new name to reflect its new status as a dwarf planet in September 2006.The former 9th planet was assigned the asteroid number 124340 by the Minor Planet Centre (MPC),the official organisation responsible for collecting data about asteroids and comets in our Solar System.Pluto's companion satellites,Charon (Pluto's largest moon),Nix and Hydra are considered part of the same system and will not be assigned separate asteroid numbers. Instead,they will now be called 134340 I, II and III respectively.
> Before loosing its planetary status on 24th August,2006 Pluto was the outermost planet of the Solar System.
Naptune
Polto
NEBULA
*Nebulae are huge interstellar clouds of gas and dust that appear as faint,misty patches of light scattered all over the sky.They appear either as bright luminous clouds or as dark patches against a brighter background.
*Anebula depends for its luminosity upon the presence of stars that have either arisen from it or are contained in it..
*If the stars are extremely hot, the hydrogen in the nebula is ionized and emits a certain amount of light of its own.If a star is less hot, the nebula shines only by reflection.
If there are no suitable stars, the nebula does not shine and remains dark and can be detected only because it blots out the light of the stars beyond.
Nebula
Exiter7Bro
I am your Creator. You were in my care
even before you were born.
Email-chahatworld007@gmail.com
Comets
> Visitors of the Solar System.Comets (the name derived from the Latin words stella cometa meaning"hairy star") are among the most spectacular and unpredictable bodies in the Solar System.
> Comets move around the Sun in regular orbits, but their orbits are elongated ellipses that it takes them hundreds and, sometimes, even thousands of years to complete one revolution around the Sun.Comets are made up of frozen gases which hold together rocky and metallic materials.
> A comet becomes visible only when it travels close to the Sun.
Comet
