| the general concept of a "moon" as a satellite of a planet and "planet" as a satellite of a star | |
|---|---|
| quote: "Any object that orbits a planet is now called a satellite, and a natural satellite is also now called a moon | Tilman Spohn, Doris Breuer, Torrence Johnson |
Stillman, Dan 16 June 2015.
3.
19.
15