Herschel II INDEX - New


Network Nebula

NGC6992, NGC6995 and IC 1340

NGC6992, NGC6995 and IC 1340

The above image is half size. The full size image is 624 x 1169

Observing Log
Date of observation: September 8, 2001
Time at end of first CCD image 9:04 PDT
Time at end of last CCD image 11:15 PDT
Observing location: home observatory
Fastar CCD Imaging session
Sky Conditions
Seeing: FWHM 2.56038
Transparency: magnitude 14.1 star is a peak value 856.658 with a background of 172.632.
Seeing and transparency is based on Star GSC 2692:3587, RA: 20h 57m 12.4s Dec: +3154'00" (Epoch 2000).
Star is at column 142.5 and row 158.5 in the image.
For Sun set, astronomical twilight end, Moon rise or set, astronomical twilight begin and Sun rise refer to dark sky.
Observation Notes
NGC6992, NGC6995 and IC 1340 are a supernova remnant and emission nebula.
NGC6992, NGC6995 and IC 1340 are the eastern part of the Veil Nebula and are sometimes called the Bridal Veil Nebula, Network Nebula or Filamentary Nebula. NGC6992 is the northern 2/3 part and NGC6995 is the 1/3 southern part on the left. IC 1340 is the very faint center to right part of the southern part.
NGC6992 RA: 20h 56m 24.0s Dec: +3143'00" (Epoch 2000)
NGC6995 RA: 20h 57m 06.0s Dec: +3113'00" (Epoch 2000)
IC 1340 RA: 20h 56m 12.0s Dec: +3104'00" (Epoch 2000)
Image size is 1.23 degrees high by .65 degrees wide.
Full size image resolution is 3.8 arc sec per pixel
Image orientation: North is the top, West is the right, East is the left and South is the bottom.
Additional Information on NGC Objects
SEDS Interactive NGC Catalog Online
NGC/IC Project
Observing Equipment

Celestron C-8 Schmidt-Cassegrain telescope with Fastar lens accessory and SBIG ST-237 CCD Camera (8" optical tube, focal length 406mm at f/1.95)
The image is made of three seperate images:
CCD image time: 51 X 30 seconds images of the southern part stacked together
CCD image time: 46 X 30 seconds images of the middle part stacked together
CCD image time: 42 X 30 seconds images of the northern stacked together
No guiding or PEC was used.

Use Test patterns to calibrate monitor brightness, contrast, height and width