Deep Sky Object in Summer
Veil Nebula (NGC6992-5 in Cygnus)


Date & Time: Aug 14 2007, from 20:32 to 21:12 JST(+0900)
Composed 6 shots with 7 minutes exposed
Optical: PENTAX 7.5cm(2.9") ED refractor with conversion lens (f=360mm, F4.8)
with IDAS LPS-P2-FF Light-pollution suppression filter
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Nikon D80 (Remodeled)
Location: Koumi town, Nagano pref.

Camera Settings: Recording Format...12bit CCD-RAW, converted to 16bit TIFF(3872 x 2592)
CCD Sensitivity...ISO1600




NGC6992-5 / Diffused Nebula, type E
R.A.20h 56m 24.0s (2000.0)
Dec.+31° 43' 00" (2000.0)
Apparent Size78 x 8'
Real Size29.5 x 3.0 light yrs.
Magnitude -
Distance1300 light yrs.
Other IDsIC1340
NGC6960 / Diffused Nebula, type E
R.A.20h 45m 42.0s (2000.0)
Dec.+30° 43' 00" (2000.0)
Apparent Size70 x 6'
Real Size26.5 x 2.3 light yrs.
Magnitude -
Distance1300 light yrs.
Veil Nebula is a faint and vast loop spread at the south wing of swan, consists of east (NGC6992-5) and west (NGC6960) segments. They are fine filaments seemingly suspended in the space. East Side is brighter, and can be seen with binoculars in perfect conditions. The star 52 Cygni is in the same field as the western part, and a dimmed and vast cloud is spread between these two without being registered in any catalogues.
It's considered that the nebula is a remnant of supernova exploded over ten thousand years ago, and is expanding outward with a velocity of about 100km (62 miles) per second. This elusive nebula has a real size of about 50 light years and a distance of 1300 light years.

Jump to Close-up of NGC6960(72KB)




Crescent Nebula(NGC6888)

North American Nebula(NGC7000)


Copyright(c) 2007 by Naoyuki Kurita, All rights reserved.
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