NGC 6992 - Eastern Veil Nebula
 
Date:
 
July 22, 2015
 
Location:
 
Landers, California USA
 
Telescope:
 
Explore Scientific ED127 Apo
 
Camera:
 
SBIG STF-8300M
 
Mount:
 
Astro-Physics Mach1GTO
 
Acquisition:
 
Maxim DL Pro 6
 
Filters:
 
Baader LRGB
 
Total Integration:
 
3 hours
 
Subexposures:
 
L: 40 x 180 (1x1)
R: 20 x 60s (2x2)
G: 20 x 60s (2x2)
B: 20 x 60s (2x2)
 
Calibration:
 
Darks: 30ea
Bias: 30ea
Flats: 30ea
 
Ten thousand years ago, before the dawn of recorded human history, a new light would have suddenly appeared in the night sky and faded after a few weeks. Today we know this light was from a supernova (an exploding star) and resulted in the expanding debris cloud known as the Veil Nebula, a supernova remnant. This image is centered on the eastern segment of the Veil Nebula cataloged as NGC 6992. Blasted out in the cataclysmic explosion, the interstellar shock wave plows through space sweeping up and exciting interstellar material. The glowing filaments are like long ripples in a sheet seen almost edge on, remarkably well separated into atomic hydrogen (red) and oxygen (blue-green) gas. The complete supernova remnant lies about 1,400 light-years away in the constellation Cygnus.