Abell 39, a faint planetary nebula in the constellation Hercules. This deep space bubble is a planetary nebula which appears nearly perfectly spherical. The spherical shape is due to an expanding, glowing shell of ionized gas which was ejected from the evolving star. The central star is evolving into a hot white dwarf star. Because the gas is ionized, it is an emission type nebula. Abell 39 is approximately 6,800 light years away from earth.
Equipment:
Celestron 9.25” EdgeHD
Starizona Hyperstar V4 f2.2
Celestron CGEM DX mount
ZWO ASI2600mc-pro Imaging Camera
ZWO ASI224mc Guide Camera
Svbony 60mm Guidescope
ZWO ASIair Pro for image acquisition and gear control.
Image Specs:
100 x 180 second exposures
Gain 100 No filters used as the ASI2600mc-pro has the built in IR cut window.
Calibrated and stacked in APP
Processed in PixInSight