1 Mars â Sometimes called the red planet and the brother of Earth. 2  Mars is the closest planet to the Earth. 3  Jupiter â The largest planet in the Solar System. 4  Saturn â Sixth planet from the Sun.
1 When talking about a general direction, the word is often not capitalised, example: the north side of the house. 2  Place names are capitalised: East Sussex, West Virginia, South Africa.  In other cases, adjectives and nouns normally begin with small letters: Go south for three miles, then go east for another three miles.
On a side note, the directions in the title of this article are capitalized due to headline capitalization rules even though they merely indicate direction. As soon as you start using directions as part of a proper name, they get capitalized. Itâs similar to why your name is always capitalized. So, if a person is from South Africa, south would be capitalized since itâs the proper name of the country.