Solutions Measure of a planet's reflectivity has 8 entries with similar clues
- orbsPlanets, poetically
- plutoOutermost of the main planets
- moonsPlanets satellites
- holstComposer of 'The Planets'
- synodicRelating to alignment of stars and planets
- tycho-braheDanish astronomer who measured the positions of stars and motions of planets and comets with unprecedented precision
- solar-systemOur sun and all its planets
- neptune-and-uranusThe two planets that exist farthest from the sun