Yes, the names of all planets should becapitalized. (For example: “Jupiter and Saturn”,not “jupiter and saturn”.) This is because theplanets are all proper nouns, or nouns that signify aspecific person, place or thing..
Herein, are planet names capitalized?
Capitalize the names of planets(e.g., “Earth,” “Mars,”“Jupiter”). Capitalize “Moon” whenreferring to Earth's Moon; otherwise, lowercase “moon”(e.g., “The Moon orbits Earth,” “Jupiter'smoons”). Capitalize “Sun” when referringto our Sun but not to other suns. Do not capitalize“solar system” and “universe.”
Secondly, do you capitalize the word sun? Do not capitalize the words sun and moon.Do not, however, capitalize earth, moon, sun,except when those names appear in a context in which other(capitalized) celestial bodies are mentioned. "I like ithere on earth," but "It is further from Earth to Mars than it isfrom Mercury to the Sun.
Likewise, people ask, why is the word earth not capitalized?
In this case, both Earth and Sun are proper nounsso they must be capitalized. When Earth is notused as a proper noun, such as when you are referring to theground, soil, or surface of the Earth, then the wordis lowercase since it is a common noun.
What kind of noun is Earth?
The word “Earth” is a proper noun whenused as the given name for our planet.
Related Question Answers
Is Heaven capitalized?
Heaven and hell are not capitalized unlessthey're at the beginning of a sentence. And God knows I love himeven if I don't capitalize pronouns that refer to him. Butnor am I here to judge. If a fellow believer wants tocapitalize divine pronouns or write of“Heaven” and “hell,” so beit.Is President capitalized?
You should only capitalize titles when they comedirectly before a person's name, as in “PresidentAbraham Lincoln.” Take this sentence for example: “Thepresident lives in the White House.” Here,president is neither being used as a title before a person'sname, nor as a direct address, so it isn'tcapitalized.Is Moon a proper or common noun?
Like all proper nouns, the names of moons, stars,and planets are written with capital letters. (In this example, theword moon is a common noun. However, Ganymede (thename of that moon) is a proper noun.) The moonorbiting Earth is called The Moon.Is year a common noun?
Is 'year' a common noun or a collectivenoun? Common Noun : Names that can be applied to anyone of person, place or thing. them is a good example for aCommon Noun.How do you identify a proper noun?
Recognize a proper noun when you seeone. A proper noun has two distinctive features: 1)it will name a specific [usually a one-of-a-kind] item, and 2) itwill begin with a capital letter no matter where it occurs in asentence. Read the following sentences. Notice the differencebetween the common and proper nouns.Is sunlight a common noun?
Thus, “the sun” would be acommon-noun phrase (due to the lack ofcapitalization), but “The Sun” could be a propernoun.Is Sky a common noun?
A common noun is used to describe a thing/aplace/a person that is general. In a sentence, if it is not in thebeginning, its initial does not need to be capitalized. In thequestion above, if 'sky' means an area we can see the sun,clouds etc. in, then it is a common noun.Is Earth the capital E?
Rule 7: The sun, moon and earth are NOTcapitalised UNLESS the word is used in an astronomical context. Allplanets and stars are proper nouns and start with capitalletters. ✓ The planet Earth orbits the Sun, and theMoon orbits the Earth.What is the meaning of How on Earth?
on earth. phrase. On earth is used foremphasis in questions that begin with words such as 'how', 'why','what', or 'where'. It is often used to suggest that there is noobvious or easy answer to the question being asked.How do you capitalize Earth?
Generally speaking, I would write earth whenreferring to soil, the ground, or land as opposed to sea. I wouldcapitalize Earth when referring to the planet (and even morespecifically, our planet; there are many earths out there). Inshort: if it's a proper noun, it should becapitalized.Is Earth capitalized Chicago Manual of Style?
We usually lowercase sun, moon, and earth, but,following The Chicago Manual of Style, when the does notprecede the name of the planet, when earth is not part of anidiomatic expression, or when other planets are mentioned, wecapitalize earth: The space shuttle will return toEarth next year.Is it the Earth or Earth?
When the noun earth refers to our planet, it iscapitalized only when it's a proper noun (meaning it acts like aname and is not preceded by the—for example, everything onEarth). 
