| Answer | Crossword Clue |
|---|---|
| YEAR | One orbit around the sun |
| COMET | Body in orbit around the sun. |
| ECLIPTIC | The plane of the earth's orbit around the sun |
| PERIHELION | Orbit point closest to the sun |
| ERIS | Ninth-largest body known to orbit the sun |
| EIGHTYEIGHT | Number of days it takes Mercury to orbit the sun |
