4: Many of Uranus's are named after Shakespearean characters
8: Synonym of 'colorless'
9: '60s-'70s Rhodesian prime minister Smith
14: Given formally or officially.
15: Where it's hard to keep 'em after they see Paree
17: At 0 degrees longitude from which east and west are reckoned (usually the Greenwich, England longitude).
28: To move around on your belly on the ground.