| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| The "system" named for this Greek astronomer puts the Earth at the center of the universe | Ptolemy | $1,600 | DJ | MEN OF SCIENCE | 2019-07-04 | #8029 | |
| In the 2nd century B.C., this Egyptian astronomer thought that stars were fixed points of light in a rotating sphere | Ptolemy DD | $1,600 | DJ | "P"SCIENCE & MEDICINE | 2003-07-16 | #4363 | |
| His astronomy figures were accepted as true for centuries until Copernicus proved them incorrect | Ptolemy | $200 | J | "P"SCIENCE | 1991-01-08 | #1467 |