| Answer | Crossword Clue |
|---|---|
| PARSEC | Astronomical distance |
| LIGHTYEAR | Astronomical distance |
| PARSEC | Astronomical distance unit |
| LTYR | Astronomical distance: Abbr. |
| LTYR | Astronomical distance meas. |
| PARSEC | Unit of astronomical distance. |
| PARSEC | Astronomical unit of distance |
| PARSEC | Astronomical distance of 3.26 light-years |
| UNIT | Astronomical ... (mean distance from the earth to the sun) |
