Comet 21P – Closest Approach
On Monday September 10, 2018 a Comet 21P/Giacobini-Zinner will reach closest approach to the Earth at a distance of 0.39AU (36 million miles). This will […]
comet 21p
Comet 21P passes through Cassiopeia
Comet 21P/Giacobini-Zinner has been well placed throughout June and July for northern hemisphere observers as the icy ball of dust passed through the high altitude, […]
Comet 21P Approaching North America Nebula
At the time of writing Comet 21P/Giacobini-Zinner passed 58 Cygni (Latin v Cygni) a binary star in Cygnus which shines at magnitude 3.94 and 6.40. This […]