Is planetarium a proper noun

Answer 1

"Planetarium" is not a proper noun; it is a common noun. Proper nouns refer to specific names of people, places, or things, while common nouns refer to general names. In this case, "planetarium" is a general term used to describe a facility that projects images of celestial objects onto a dome-shaped ceiling for educational or entertainment purposes.

Answer 2

A proper noun is the name of a specific person, place, or thing. The proper nouns for planet are the names of the planets, for example Earth, Mars, Neptune, etc.

Answer 3

Yes, because they are specific names identifying each planet.

Answer 4

Proper