Juno16_18
NGC 6992 The Eastern Veil Nebula Reprocess
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.
It constitutes the visible portions of the Cygnus Loop, a supernova remnant, many portions of which have acquired their own individual names and catalogue identifiers. The source supernova was a star 20 times more massive than the Sun which exploded between 10,000 and 20,000 years ago. At the time of explosion, the supernova would have appeared brighter than Venus in the sky, and visible in daytime. The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 6 times the diameter, and 36 times the area, of the full Moon). While previous distance estimates have ranged from 1200 to 5800 light-years, a recent determination of 2400 light-years is based on direct astrometric measurements.
Imaged from my backyard on 8/19/20.
Explore Scientific ED102/Nikon D5300 (Ha mod) with IDAS LPS D-1 filter, w/Stellarview FF/0.80FR.80% illuminated moon.
55 Light frames at iso 400 for 240 seconds
Total integration of 3 1/2 hours.
Processed in DeepSkyStacker , Startools, Starnet++, and Photoshop.
NGC 6992 The Eastern Veil Nebula Reprocess
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.
It constitutes the visible portions of the Cygnus Loop, a supernova remnant, many portions of which have acquired their own individual names and catalogue identifiers. The source supernova was a star 20 times more massive than the Sun which exploded between 10,000 and 20,000 years ago. At the time of explosion, the supernova would have appeared brighter than Venus in the sky, and visible in daytime. The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 6 times the diameter, and 36 times the area, of the full Moon). While previous distance estimates have ranged from 1200 to 5800 light-years, a recent determination of 2400 light-years is based on direct astrometric measurements.
Imaged from my backyard on 8/19/20.
Explore Scientific ED102/Nikon D5300 (Ha mod) with IDAS LPS D-1 filter, w/Stellarview FF/0.80FR.80% illuminated moon.
55 Light frames at iso 400 for 240 seconds
Total integration of 3 1/2 hours.
Processed in DeepSkyStacker , Startools, Starnet++, and Photoshop.