| The Terrestrial planets – Mercury, Venus, Earth and Mars |
| The Jovian planets – Jupiter, Saturn, Uranus, Neptune |
| The Dwarf planets – Ceres, Pluto, Haumea, Makemake and Eris |
| Ceres lies in the asteroid belt, Pluto, Haumea and Makemake lie in the Kuiper belt and Eris lies beyond the Kuiper belt. |
| The brightest planet as seen from Earth – Venus |
| The planet also known as Earth’s twin – Venus |
| The planet, which rotates in a direction opposite to that of others – Venus |
| The planet, which has prominent rings around it – Saturn |
| Planets which have no satellites – Mercury & Venus |
| The planet with the longest day – Venus (243 earth-days) |
| The planet with the shortest day – Jupiter (9 hrs 55 mts) |
| The planet also known as Evening/Morning star – Venus |
| The star nearest to the earth – Proxima Centauri |
| The hottest planet in the solar system – Venus (Maximum temp: 462° C) |
| The coldest planet in the solar system – Uranus (Effective temp: - 216° C) |
| The planet with the highest density in the solar system – Earth |
| The planet with the lowest density in the solar system – Saturn |
| The largest satellite in the solar system – Ganymede (Satellite of the Jupiter) |
| The planet also known as the Red Planet – Mars |
| The highest known mountain in the solar system – Olympus Mons on Mars |
| The planet whose density is less than that of water – Saturn |
| The planet with highest surface gravity (meter per square second) is – Jupiter (24.92) |
| The planet with lowest surface gravity (meter per square second) is – Mercury (3.7) |
| The space between Mars and Jupiter consisting of millions of asteroids is knowns as the – asteroid belt |
| The largest asteriod also known as a dwarf planet – Ceres |
| The disc-shaped region of icy bodies and comets beyond the orbit of Neptune is known as – Kuiper belt |
| Halley's comet last appeared in 1986 and is expected to appear next in – 2061 |
| The galaxy nearest to the milky way – Andromeda |