Abell 24 (PK 217 +14.1) Planetary Nebula in Canis Minor

Abell 24 (PK 217 + 14.1) is a week (14.5mag),but relatively large (7'x6.7') Planetary Nebula in the constellation of Canis Minor.It emitts strong Ha- and NII-lines,easy to dectect with CCD-sensors,but nearly invisible to the human "night-eye".

The OIII emission is only a part of of the sum of Ha+NII ones.That is the reason why Abell 24 shines like a red lantern on this photograph.

To detect it visually in a telescope you need very clear skies and a telescope with at least 10inch apreture.A strong OIII-Filter will help to detect it.

The faint galaxy at the bottom of the picture is  PGC 22023.


position (epoch2000):

RA.:   07h51m43.0s

Decl.:  +03°00'16"


image data:

LRGB image with L =9 x1200s




a total of 19.0 hours

80cm f/7 AstroOptik Keller corrected cassegrain FLI Proline 16803 Astrodon LRGB GenII filters

Prompt 7 CTIO/UNC Chile,remote controlled

image processing: Bernd Flach-Wilken


this photo shows the complete FOV of the FLI-CCC-camera. Click here to get full resolution

this is a closer look to Abell 24:


Last modified on Wednesday, 14 February 2018 16:41

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