Deep Sky Object in Winter
Abell 24 (Planetary nebula in Canis Minor)


Date & Time: Nov 20 2015, from 26:31 to 27:23 JST(+0900)
Composed 6 shots with 10 minutes exposed
Optical: TAKAHASHI 16cm(6.3") epsilon with a conversion lens (f=742mm, F4.6)
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)
Sensitivity...ISO1600




Abell 24 / Planetary nebula, type IV+III
R.A.07h 51m 39.3s (2000.0)
Dec.+03°00' 29" (2000.0)
Apparent Size6.0×5.5'
Real SizeN/A
Magnitude13.6
DistanceN/A
Other IDsPK 217+14.1
Abell 24 is a medium-scaled planetary nebula positioned at a bit smaller than 4 degrees southeast from the Procyon in Canis Minor. The nebula has a visual diameter of about 6 arc minutes, we can capture the figure comparatively easily only with small-ranged telescopes. The nebula is emitting the clear reddish light from the activated hydrogen gas, looks like a simple round shape but a bit condensed regions can be seen in east and west parts.




Orion Association

Medusa Nebula


Copyright(c) 2015 by Naoyuki Kurita, All rights reserved.
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