| Answer | Crossword Clue |
|---|---|
| ASTR | Observatory observer: Abbr. |
| OGO | Sky observatory: Abbr. |
| NAV | Kind of observatory: Abbr. |
| Answer | Crossword Clue |
|---|---|
| ASTR | Observatory observer: Abbr. |
| OGO | Sky observatory: Abbr. |
| NAV | Kind of observatory: Abbr. |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.