Deep Sky Object in Autumn
NGC281 (Diffused Nebula in Cassiopeia)

Click on image to enlarge

Date & Time: Nov 26 2011, from 22:58 to 23:49 JST(+0900)
Composed 6 shots with 10 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon (f=530mm, F3.3)
with Astronomik CLS-CCD filter
Auto-guided with TAKAHASHI JP Equatorial & SBIG STV
Digital Camera: Canon EOS 550D (Remodeled)
Location: Ooizumi, Hokuto city, Yamanashi pref.

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


NGC281 / Diffused Nebula, type 1 E
R.A. 00h 52m 48.0s (2000.0)
Dec.+56° 37' 00" (2000.0)
Apparent Size27×23'
Real Size44×37 light yrs.
Magnitude -
Distance5500 light yrs.
Other IDsSh2-184, LBN616
NGC281 is a red diffused nebula about 2 degrees east of alpha Cas. Though almost all of diffused nebulae emitting the reddish spectra by the activated hydrogen molecule can hardly be detected with our naked eyes, NGC281 is fairly bright, and you can appreciate its dimmed shape with binoculars in the extremely good conditioned sky.
The constellation of Cassiopeia is located in the autumn's Milky Way, and has various attractive and photographed objects including the nebula.



Around NGC246
NGC1333

Copyright(c) 2011 by Naoyuki Kurita, All rights reserved.
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