Comet Giacobini–Zinner 21P

Giacobini–Zinner 21P is a periodic comet. It was discovered by Michel Giacobini (from NiceFrance),
who observed the comet in the 
constellation of Aquarius on December 20, 1900.
It was recovered two passages later by Ernst Zinner (from BambergGermany) while observing variable stars near Beta Scuti on October 23, 1913.

During its apparitions, Giacobini–Zinner can reach about the 7-8th magnitude, but in 1946 it underwent a series of outbursts that made it as bright as 5th magnitude.
It is the parent body of the Giacobinids meteor shower (also known as the Draconids).

Giacobini–Zinner was the target of the International Cometary Explorer spacecraft, which passed through its plasma tail on September 11, 1985.
 In addition, Japanese space officials considered redirecting the Sakigake interplanetary probe toward a 1998 encounter with Giacobini–Zinner,
but the probe lacked the propellant for the necessary maneuvers and the project was abandoned.

The comet nucleus is estimated to be 2.0 kilometers in diameter.

I imaged Comet 21P/Giacobini-Zinner on September 10th 2018, at perihelion, coinciding with its maximum approaching to Earth,
This apparition was the most favorable in decades.

Comet GZ was ocated in the constellation Auriga in the middle of the Milky Way passing by the large open cluster M 36 ,

Comet 21P-Giacobini-Zinner, September 10, 2018