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

Date & Time: Oct 12 2012, from 22:31 to 23:41 JST(+0900)
Mosaic of 3 flames of 3 shots composed with 8 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with Astronomik CLS-CCD filter
Auto-guided with TAKAHASHI JP Equatorial & SBIG STV
Digital Camera: Canon EOS 550D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(5184×3456)
CCD Sensitivity...ISO1600

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. Two round reddish nebulae are paralleling in north south direction in left hand side of 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.
And perhaps you can detect a stripe-shaped gaseous region in right hand side, this region corresponds to a northern end of IC1318 surrounding gamma Cygni, Sadr.

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

Diffused Nebula around eta Cyg(Sh2-101)


Copyright(c) 2012 by Naoyuki Kurita, All rights reserved.
To top page To Deepsky in Summer index Cygnus