| Rating | Solver | Clue |
|---|---|---|
| ORBIT | Circle (planet) | |
| EQUATOR | Imaginary circle around our planet | |
| EQUANT | A circle around whose circumference a planet or the center of ann epicycle was conceived to move uniformly; -- called also eccentric equator. | |
| EPICYCLE | A circle, whose center moves round in the circumference of a greater circle; or a small circle, whose center, being fixed in the deferent of a ... |