NGC 6992 (Cygnus)

The supernova remnant NGC 6992, NGC 6995 & IC 1340 (Eastern Veil Nebula, Caldwell 33) in the constellation Cygnus

Fig. 1 - Delicate arc of cosmic debris: The supernova remnant NGC 6992 in Cygnus, photographed with an 8-inch f/4 Newtonian reflector on a ZWO AM5 mount.

Object name:	Constellation:	Coordinates:	Apparent size:	Visual brightness:
NGC 6992	Cygnus	20h56m / +31°45'	60' x 8'	-
NGC 6995	Cygnus	20h57m / +31°14'	12' x 12'	-

NGC 6992, NGC 6995 and IC 1340, collectively known as the Eastern Veil Nebula (Caldwell 33), are part of the Veil Nebula supernova remnant in the constellation Cygnus. The Eastern Veil is a cloud of heated and ionized gas and dust from a star about 20 times more massive than the Sun that exploded roughly 8,000 years ago. It lies approximately 2,100 to 2,400 light-years from Earth.

NGC 6992 was discovered by German-born British astronomer and composer William Herschel in 1783 /1784, NGC 6995 was discovered by his son John Frederick William Herschel in 1825 and IC 1340 by American astronomer Truman Henry Safford in 1866 (source: Wikipedia).

Technical Details:
Exposure time: 6h 21min (127x3min)
Gain: 100
Temperature: -10°C
Date: July 5 and August 30/31, 2025
Processing: Astro Pixel Processor (APP) and Photoshop
Calibration: Darks, flats, and bias

Equipment:
Cooled ASI 2600MC Pro camera, TeleVue Paracorr Type II coma corrector, 8" f/4 "ONTC" Newtonian telescope, ZWO AM5 Strain Wave Mount, ZWO OAG-L off-axis system, ASI 174MM Mini guide camera, ASIAIR Plus

NGC 6992 was also captured with a 16-inch dobsonian on an equatorial platform. The image can be seen here.

Ngc6888 Ngc6781