Clue: Innermost orbiter

Answer: PLANETHYDRARGYRUM

Length: 17

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Similar Clues:

• Unimportant orbiter? (MINORSPACESTATION with 17 letters)
• Earth orbiter (e.g. MIR with 3 letters)
• Erstwhile Russian orbiter (MIR with 3 letters)
• Tailed orbiter (COMET with 5 letters)
• Orbiters with tails (COMETS with 6 letters)
• Solar orbiter (PLUTO with 5 letters)
• Jupiter orbiter (EUROPA with 6 letters)
• Palindromic 1960s orbiter: abbr. (OGO with 3 letters)
• Former Russian orbiter (MIR with 3 letters)
• Erstwhile orbiter (MIR with 3 letters)