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- Jupiter is the biggest planet in our solar system.
- Neptune is the last planet in the solar system.
- The smallest planet is Mercury.
- The coldest planet of the solar system is Neptune.
- According to the International Astronomical Union, there are eight planets and five dwarf planets in our Solar System.
- Comets revolve around the Sun.
- Jupiter is larger than the Earth by about 11 times.
- The fastest planet is Mercury.
- The planet which revolves very slowly around the Sun is Neptune.
- The Sun contains 99.86% mass of the solar system.
- The present generation of stars is due to fusion of light nuclei.
- The planets keep in elliptical motion due to the gravitational pull of the sun.
- Comets are luminous celestial bodies moving around the Sun.
- The Sun rises in the east and sets in the west due to Earth’s rotation.
- The rising and evening star indicates the west.
- Satellites can be natural or artificial.
- Earth’s orbit around the Sun is elliptical in shape.
- The Sun rises in the east and sets in the west due to the Earth’s rotation.
- Neptune takes the largest time to go once around the Sun.
- The solar system was discovered by Copernicus.
- The unit of measuring distances between stars is known as the light year.
- Elliptical path is the name of path of the sun amongst the stars in our galaxy.
- A comet has a tail always pointing away from the sun.
- The group of small pieces of rock revolving around the sun between the orbits of Mars and Jupiter are called Asteroids.
- Asteroid or planetoids orbit between Mars and Jupiter.
- Johannes Kepler proposed laws of planetary motion.
- Six of the eight planets of the solar system were known in the time of Kepler; the remaining two were Uranus and Neptune.
- The study of the moon, stars and other natural motion of celestial bodies is called Astronomy.
- The Earth receives about 1368 watts per square meter of solar radiation.
- Among Mars, Alpha Centauri, Sun, and Jupiter, the Sun is nearest to Earth.
- The Sun is the nearest star to Earth, and the second nearest star is Proxima Centauri.
- A gas giant is a planet with low density made primarily of gas and ice, e.g., Jupiter and Saturn.
- Proxima Centauri is the nearest star to the Sun, at a distance of 4.24 light-years.
- The term ‘Ecliptic‘ is used for the Sun’s path in the sky during a year.
- Charged particles from the Sun that travel through space at high speeds are called Solar wind.
