Stars and the Solar System Test - 3

Meteoroid is a small particle from a comet or an asteroid orbiting the Sun. The light phenomenon which results when a meteoroid enters the Earth's atmosphere and vaporises is known as meteor.

Jupiter is the fastest spinning planet in our solar system rotating on average once in just under 10 hours.

Ursa Major and Ursa Minor are the types of circumpolar constellation. The Milky Way is the galaxy that contains the Solar System. Orion is a type of constellation.

There are ten brightest stars, and Orion constellation consists of two of these ten brightest stars. The names of the two brightest stars in Orion constellation are Rigel and Betelgeuse.

It takes Jupiter approximately 11 3/4 years to complete a revolution around the Sun. Jupiter's average orbit distance from the Sun is 778 million kilometres, which is about a little more than 5 times the average distance between Earth and the Sun, 150 million kilometres.

Mercury is the smallest and innermost planet in the solar system.
Its orbital period (about 88 Earth days) is less than that of any other planet in the solar system.
It has no known natural satellites.
Although Mercury can appear as a bright star-like object when viewed from Earth, its nearness to the Sun often makes it more difficult to see than Venus.

Ursa Major appears to move from East to West around the pole star.

Rigel is the Orion's brightest star which forms the hunter's left knee.

Meteorites help scientists in investigating the nature of the material from which the solar system was formed.

The periods of rotation and revolution of Mars are equal.

Neptune has its surface covered with ice and the poles have pink snow of frozen nitrogen.

These satellites are used to observe distant planets, galaxies and other outer-space objects.

First Quarter Moon means the Moon is one quarter of the way through the current orbital cycle. Third or Last Quarter Moon means the moon is three-quarters of the way through the cycle, as measured from one New Moon to the next.

The moon wanes when it gradually appears less and less round, after the Full Moon.