Related Clues:

• Line of rotation
• Observatory find
• Flier with a tail
• Cleaning brand
• Tailed flyer
• One of the crew
• Celestial body
• Sky streaker
• Cupid's yokemate
• Hale-Bopp, for one
• Bad omen, perhaps
• Stellar sight
• Telescope sight
• Kohoutek, for one
• Space sighting