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

Date & Time: Apr 29 2017, from 26:13 to 27:22 JST(+0900)
Mosaic of 2 flames of 6min.×6shots
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS LPS-D1 Light-pollution suppression filter
Auto-guided with TAKAHASHI JP Equatorial & SBIG STV
Digital Camera: Canon EOS 6D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording format...14bit CCD-RAW, converted to 16bit TIFF(5472×3648)
Device Size...35×24mm, Sensitivity...ISO1600

NGC6992-5 / Diffused Nebula, type E
R.A.20h 56m 24.0s (2000.0)
Dec.+31° 43' 00" (2000.0)
Apparent Size78×8'
Real Size29.5×3.0 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 Size70×6'
Real Size26.5×2.3 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 of NGC6979 is spread between these nebulae.
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(169KB)
Jump to Close-up of NGC6992-5(132KB)
Jump to Wide field around Veil Nebula(203KB)

Crescent Nebula(NGC6888)

North American Nebula(NGC7000)

Copyright(c) 2017 by Naoyuki Kurita, All rights reserved.
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