ngc 6995 / ngc 6992

NGC 6995  / NGC 6992

 

HaOIIIRGB 420 130 40 40 40

ASA 16" RC

ASA DDM 100

ASI 6200 Pro

 

Constellation Cygnus

Ra 20:56:60

Dec 31:13:00

 

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, and it exploded between 10,000 and 20,000 years ago. The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter. 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. The eastern part of this SNR is sometimes called the bat nebula and consists of NGC 6995 and NGC 6992.