Solutions Old astronomical instrument has 6 entries with similar clues

• 5-letter words
• novasAstronomical phenomena
• 6-letter words
• parsecUnit of astronomical distance
• nebulaAstronomical cloud
• 7-letter words
• polarisAstronomical name for North Star
• almanacAnnual publication giving dates of astronomical and other events
• 11-letter words
• conjunctionAstronomical coincidence