Related Clues:

• Disco strobe, e.g.
• All the way around
• Satellite circuit
• World
• Space circle
• Celestial ellipse
• Go round
• Earth's shape
• It may be eminent
• Path that the whole world follows
• Once around, to an astronaut
• Go around and around
• Earth's is elliptical
• Elliptical path, typically
• Field of knowledge