Stars and the Solar System - Coggle Diagram
Stars and the Solar System
Celestial Objects: Objects, such as the stars, the planets, the moon and many other objects, in the sky are called celestial objects.
Phases of the Moon: The various shapes of the bright part of the moon as seen during a month are called phases of moon.
Constellation: The stars forming a group that has a recognizably shape of animals, human beings or other objects is called a constellation.
Ursa Major: It can be seen during summer time
in the early part of the night. It is also know as saptnrish.
'Great Bear' or 'Big Dipper'. The name 'Big Dipper' has been derived from the word 'Dipper'. Dipper was used in olden days for drinking water. Ursa Major consists of a groups of seven stars. Three stars appear to form the handle of the dipper and four stars form its bowl. It appears to move from east to west in the sky.
Other Celestial Objects
Meteors and Meteorites: Sometimes we see bright streaks of light in the sky. These are commonly known as shooting stars, although they are not stars. Actually, these are small objects which glow due to friction when they enter the earth's atmosphere. These are called meteors. Meteors glow and evaporate quickly before reaching the Earth's surface. The bodies that reach the earth are called as meteorites.
Asteroids: A large number of small objects that revolve around the sun between Mars and Jupiter are called asteroids.
Comet: A comet appears as a bright head with a long tail. They revolve around the sun in highly elliptical orbits. The tail of a comet is always directed away from the sun.
The Solar System: The sun and the celestial bodies such as planets, comets, asteroids and meteors which revolve around the sun form the solar system.
The sun is the nearest star which is the main source of heat and light for all the planets.
Satellite: The body revolving around a planet is called a satellite. Moon is the natural satellite of the earth.
Different Planets: The solar system consists of eight planets revolving around the sun in their orbits. The arrangement of planets in is with respect to the position of the sun, i.e. in order of distance from the sun.
Mercury (Budh): It is the smallest planet and nearest to the sun. Mercury has no satellite of its own.
Venus (Shukra): It is nearest to the earth and is the brightest planet in the night sky. Venus has no moon or satellite of its own. It rotates from east to west while the earth rotates from west to east.
Mars (Mangal): It is the first outside
the orbit of the earth. It is also known
as red planet. It has two satellites.
The Earth (Prithvi): It is the fifth largest planet and third in order of distance from the sun. It is the only planet of the solar system known to support life, because it has atmosphere, water, suitable temperature and a blanket of ozone. The earth has one natural satellite called the moon. The axis of rotation of the earth is tilted to the plane of its is. The tilt is responsible for the change of seasons on the earth.
Saturn (Shani): It appears yellowish in colour. It has beautiful rings. Saturn has a large number of satellites. It is least dense among all the planets.
Uranus (Indra): Like Venus, Uranus also rotates from east to west. It has highly tilted rotational axis. So in its orbital motion Uranus appears to roll on its side.
Neptune (Varun): It is the outermost planet of the solar system. It has two moons.
Jupiter (Brihaspati): It is the largest planet of the solar system. It has a large number of satellites (moons).