Celestial hemisphere:  Northern  ·  Constellation: Orion (Ori)  ·  Contains:  IC 2162
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String of Sharpless objects Sh 2-254 to 259, JNieto
String of Sharpless objects Sh 2-254 to 259
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String of Sharpless objects Sh 2-254 to 259

Getting plate-solving status, please wait...
String of Sharpless objects Sh 2-254 to 259, JNieto
String of Sharpless objects Sh 2-254 to 259
Powered byPixInsight

String of Sharpless objects Sh 2-254 to 259

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Acquisition details

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Description

Emission nebulae considered classical Strömgren spheres (https://en.wikipedia.org/wiki/Str%C3%B6mgren_sphere)

Actually there are six Sharpless objects in the picture. I did not intent to catch Sh 2-259 (upper right edge) but eventually it fell inside the frame. Strong H-alpha and Sii signal, but close to zero Oiii signal.

I started this object in March 2017 and finished in December 2018.

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Sky plot

Sky plot

Histogram

String of Sharpless objects Sh 2-254 to 259, JNieto