| Kepler's teacher |
| Danish astronomer |
| Astronomer Tycho __ |
| Kepler contemporary |
| Contemporary of Kepler |
| Noted Danish astronomer |
| Danish astronomer Tycho ___ |
| Tycho who taught Johannes Kepler |
| Last major "naked-eye" astronomer |
| Kepler's contemporary and assistant |
| Astronomer who coined the term "nova |
| Danish astronomer who followed Copernicus |
| Astronomer Tycho who coined the term 'nova' |
| Astronomer who lost part of his nose in a duel |
| Danish astronomer who was exhumed twice, once to examine the causes of death and once to identify the material of his artificial nose |