Deep Sky Object in Summer
Sh2-116 (Diffused Nebula in Cygnus)


Date & Time: Nov 23 2024, from 20:48 to 21:25 JST(+0900)
Composed 10 shots with 4 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with IDAS LPS-P1 Light-pollution suppression filter
Auto-guided with Meade LX200 Equatorial & Lacerta M-GEN
Digital Camera: Nikon D810A
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(4080×4080)
Device Size...20×20mm
Sensitivity...ISO4000, White Balance...Daylight


Sh2-116 / (Diffused nebula), type IIIb
R.A.20h 32m 23.4s (2000.0)
Dec.+47°20' 55" (2000.0)
Apparent Size2.6'
Real SizeN/A
Magnitude15.2
DistanceN/A
Other IDsAbell 71, PK 85+4.1
It is a circular nebula emitting Hƒ¿ light with a size of just over 2 arcminutes, located 2.6 degrees northwest of Deneb in the constellation Cygnus. Initially, the nebula was classified as a planetary nebula due to its shape, but recent studies have revealed it to be an emission nebula. Just to the south of this nebula lies the medium-sized diffuse nebula Sh2-115.



Around Sh2-112, 115
Sh2-113, 114

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