It's both, actually. The Earth is a planet. And a planet is a thing. It's a noun.
Thing
A proper noun is the name of a specific person, place, or thing. The proper noun for the common noun planet is the name of a planet, for example Venus, Mars, Earth, Pluto, etc.
To date, there is no such thing as an artificial planet
Yes, the noun 'planet' is a common noun, a general word for any celestial body moving in an elliptical orbit around a star.A proper noun is the name of a specific person, place, or thing. A proper noun for the common noun 'planet' is the name of a planet, such as Earth or Saturn.
No, the word planet is a noun, a word for a thing. The adjective form is planetary.
It can be called a place and thing.
Saturn, the planet, could be considered to be either a place or a thing.
The word "planet" is a noun because it is a thing. A person, place or thing is always a noun.
A map is a depiction of a part of the planet Earth, a specific place on Earth, or a place outside of the Earth; a map is a word for a picture, photo, drawing, image; a word for a thing.
There is no such thing as a planet named "Cybertron".
A proper noun is the name of a specific person, place, or thing. The proper noun for the common noun planet is the name of a planet, for example Venus, Mars, Earth, Pluto, etc.
No planet came in place of Pluto.
If you are talking about the geographic idea of horizon, there are infinitely many. Horizon is not a thing or a place, but a relationship between an observer and the thing observed, usually a planet or moon.
Pluto. Poor thing...
There is no such thing as a good planet or a bad planet. Also, Pluto is not a planet.
No, but the two are related. An orbit is the path taken by a planet around a star (or by a satellite around a planet). A revolution is the amount of time it takes said planet or satellite to complete that orbit once. Think of revolution as time, and orbit as place.
To date, there is no such thing as an artificial planet
gas planet