How Far Away is Comet 21P/Giacobini-Zinner from Earth?
The distance of Comet 21P/Giacobini-Zinner from Earth is currently 383,748,735 kilometers, equivalent to 2.565202 Astronomical Units. Light takes 21 minutes and 20.0480 seconds to travel from Comet 21P/Giacobini-Zinner and arrive to us.