Title:

HFG1 

Photograph By:

© Peter Goodhew 

Date Taken:

Wednesday, 6 November 2019 

Equipment Used:

APM TMB 152 F8 LZOS, 10 Micron GM2000HPS, QSI6120ws8 

Description:

HFG1 (PK 136+05) is a very old large, low-surface-brightness planetary nebula in Cassiopeia that was discovered by Heckathorn, Fesen, and Gull in 1982. It surrounds, and was produced by, a binary star system (V664 Cas) that is moving rapidly through our Galaxy. The star is moving towards the lower left of the image. As HFG1 plows through the interstellar medium, a bluish bowshock is produced; and a red trail of gas is left behind in its wake.