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.
Capitalization Rules. Capitalization is the writing of a word with its first letter in uppercase and the remaining letters in lowercase. Experienced writers are stingy with capitals. It is best not to use them if there is any doubt. Rule 1. Capitalize the first word of a document and the first word after a period. Rule 2. Capitalize proper nounsâand adjectives derived from proper nouns. With the passage of time, some words originally derived from proper nouns have taken on a life, and authority, of their own and no longer require capitalization.