Deep Sky Object in Autumn
Sh2-140 (Diffused Nebula in Cepheus)

Click on image to enlarge

Date & Time: Sep 30 2022, from 23:58 to 25:08 JST(+0900)
Composed 8 shots with 10 minutes exposed
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
CMOS Camera: ZWO ASI2600MC Pro (Cooled temp.: -15°C)
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording format...16bit FITS, converted to 16bit TIFF(6248×4176)
Device Size...23.5×15.7mm, Gain...100


Sh2-140 / Diffused Nebula, type 5 E
R.A.22h 19m 00.0s (2000.0)
Dec.+63° 17' 30" (2000.0)
Apparent Size10.8×4.4'
Real Size25 light yrs.
Magnitude -
Distance2900 light yrs.
Other IDsLBN 505
This image has captured a small emission nebula of Sh2-140 lying about 5 degrees north from ζ Cephei. The nebula has a size of about 10 arc minutes, it has a unique apparent shape of the crescent. We can recognize that a vast dark nebula LDN1204 is obstructing reddish emission nebulosity in background, the accidental arrangement of those nebulae have formed the peculiar and interesting shape. It's estimated that the nebula is about 2900 light years away.
Objects around Sh2-140 Objects around Sh2-140



Sh2-135
Sh2-142

Copyright(c) 2022 by Naoyuki Kurita, All rights reserved.
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