Deep Sky Object in Autumn
Sh2-135 (Diffused Nebula in Cepheus)

Click on image to enlarge

Date & Time: Sep 17 2023, from 20:51 to 22:00 JST(+0900)
Composed 9 shots with 8 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with IDAS LPS-D1 Light-pollution suppression filter
Auto-guided with TAKAHASHI EM-200 Equatorial & Lacerta M-GEN
CMOS Camera: ZWO ASI2600MC Pro (Cooled temp.: -10°C)
Location: Furudono town, Fukushima pref.

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


Sh2-135 / Diffused Nebula, type 4 E
R.A.22h 21m 43.0s (2000.0)
Dec.+58° 46' 00" (2000.0)
Apparent Size8.3×4.0'
Real Size20 light yrs.
Magnitude -
Distance4500 light yrs.
Other IDsLBN 492, LBN 493
A small diffused nebula about 1.5 degrees east of ζ-Cep. is Sh2-135. The nebula has a span of about 8 arc minutes or so, you can see a tiny cut of dark lane in northern region. The distance has been estimated about 4500 light years. And plural dimmed Hα nebulae have distributed just west of Sh2-135.


Deepsky objects around Sh2-135 Deepsky objects around Sh2-135



Sh2-132
Sh2-140

Copyright(c) 2023 by Naoyuki Kurita, All rights reserved.
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