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Sh2- 226, Sh2-227 and Sh2-228, three rarely imaged objects, Göran Nilsson
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Sh2- 226, Sh2-227 and Sh2-228, three rarely imaged objects

Getting plate-solving status, please wait...
Sh2- 226, Sh2-227 and Sh2-228, three rarely imaged objects, Göran Nilsson
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Sh2- 226, Sh2-227 and Sh2-228, three rarely imaged objects

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Description

There are very few images of these objects from the Sharpless catalogue on Astrobin. In the upper left corner the open star cluster NGC1857 can be seen, and near the bottom is the small but very bright Ha patch known as PK169-001 (aka IC2020 which is misplaced by the plate solve). It was once misidentified as a planetary nebula, see http://simbad.u-strasbg.fr/simbad/sim-id?Ident=PK%20169-00%201%20. See also https://www.deepskycorner.ch/obj/ic2120.en.php. There are also some very large patches of Ha emission in the image that may not have any designations.

EDIT to my new version of the image: With less cropping it now includes the planetary nebula PN G167.9+00.9 : the small red oblong object near the top edge, a bit to the left ).

Processed using Star XTerminator to bring out the nebulosity, and no moon was up so I could go rather deep with the NBZ (Ha+Oiii) filter.

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Revisions

  • Sh2- 226, Sh2-227 and Sh2-228, three rarely imaged objects, Göran Nilsson
    Original
  • Sh2- 226, Sh2-227 and Sh2-228, three rarely imaged objects, Göran Nilsson
    C
  • Final
    Sh2- 226, Sh2-227 and Sh2-228, three rarely imaged objects, Göran Nilsson
    D

C

Description: Reprocessed from scratch

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Sh2- 226, Sh2-227 and Sh2-228, three rarely imaged objects, Göran Nilsson