Deep Sky Object in Summer
Around Sh2-112, Sh2-115 (Diffused Nebulae in Cygnus)


Click on image to enlarge

Date & Time: Aug 3 2019, from 25:26 to 25:51 JST(+0900)
Composed 6 shots with 5 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS LPS-V4 Light-pollution suppression filter
Auto-guided with TAKAHASHI EM-200 Equatorial & Lacerta M-GEN
Digital Camera: Canon EOS 6D (Remodeled)
Location: Koumi town, Nagano pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5472×3648)
Device Size...36×24mm, Sensitivity...ISO2500



Sh2-112 / Diffused Nebula, type E
R.A.20h 34m 03.0s (2000.0)
Dec.+45° 38' 42" (2000.0)
Apparent Size15.0'
Real Size25 light yrs.
Magnitude -
Distance5700 light yrs.
Other IDs -
Sh2-115 / Diffused Nebula, type 2 E
R.A.20h 34m 27.2s (2000.0)
Dec.+46° 48' 30" (2000.0)
Apparent Size30.0×20.0'
Real Size110 light yrs.
Magnitude -
Distance7500 light yrs.
Other IDsLBN 358
This image has captured a northern corner of Cygnus. There is the alpha Cygni, Deneb, at just outside of left edge of the image, you can detect the glare of it in the image. Two round reddish nebulae are paralleling in north south direction in the image, southern and northern nebulae are Sh2-112 and Sh2-115, respectively. Both have sizes of 15 or 20 arc minutes, we can take their tiny figures easily by photographing the constellation of Cygnus with a wide photo lens. Furthermore, you can recognize a smaller reddish nebula of Sh2-116 at 40 arc minutes northwest of Sh2-115. Although the nebula has an ID of planetary nebula (PK 85+4.1), actually it's only region where hydrogen gas has gathered densely by chance.

Objects around Sh2-112, 115 Objects around Sh2-112, 115




Diffused Nebula around eta Cyg(Sh2-101)

Sh2-113, 114


Copyright(c) 2019 by Naoyuki Kurita, All rights reserved.
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