Deep Sky Object in Autumn
NGC7139 (Planetary Nebula in Cepheus)

Click on image to enlarge

Date & Time: Oct 26 2019, from 20:58 to 22:31 JST(+0900)
Composed 9 shots with 10 minutes exposed
Optical: VIXEN 20cm(7.9") VISAC with conversion lens (f=1278mm, F6.4)
with BaaderPlanetarium UV/IR cut filter
Auto-guided with TAKAHASHI JP Equatorial & SBIG STV
Digital Camera: Canon EOS 600D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

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


NGC7139 / Planetary Nebula, type IIIb
R.A.21h 45m 54.0s (2000.0)
Dec.+63° 39' 00" (2000.0)
Apparent Size1.30'
Real SizeN/A
Magnitude -
DistanceN/A
A tiny planetary nebula in the pentagon of Cepheus is NGC7139. You can find it about 3 degrees 15 arc minutes ENE of alpha Cep. The nebula has an apparent diameter of 1.3 arc minute and shape of reddish and flat disk. You can see only very dimmed light through medium sized telescopes.



NGC7133
Helix Nebula(NGC7293)

Copyright(c) 2019 by Naoyuki Kurita, All rights reserved.
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