Deep Sky Object in Summer
Sh2-120 & Sh2-121 (Diffused Nebulae in Cygnus)


Click on image to enlarge

Date & Time: Jul 16 2021, from 25:57 to 26:42 JST(+0900)
Composed 10 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...ISO3200



Sh2-120 / Diffused Nebula, type E
R.A.21h 03m 44.5s (2000.0)
Dec.+49°51' 55" (2000.0)
Apparent Size1.0'
Real SizeApprox. 7 light yrs.
Magnitude -
Distance24500 light yrs.
Other IDs -
Sh2-121 / Diffused Nebula, type E
R.A.21h 05m 15.6s (2000.0)
Dec.+49°39' 42" (2000.0)
Apparent Size1.0'
Real SizeApprox. 4 light yrs.
Magnitude -
Distance14700 light yrs.
Other IDs -
This image has captured two tiny H-alpha nebulae paralleling with an interval of 20 arc minutes at about 5 degrees north of the North American Nebula (NGC7000) in Cygnus. Nebulae in upper right-hand side and lower left-hand side have IDs of Sh2-120 and Sh2-121 respectively. Both nebulae have spans of at most an arc minute and are floating from 15 to 25 thousand light years away. You can attract notice on a lane of dark nebula crossing just west of the nebulae.
This image has been cropped with an equivalent focal length of 700mm.




Sh2-119

vdB111


Copyright(c) 2021 by Naoyuki Kurita, All rights reserved.
To top page To Deepsky in Summer index Cygnus