Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent nebula  ·  NGC 6888  ·  Sh2-105
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Crescent Nebula (NGC 6888), Gabriel Cardona
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Crescent Nebula (NGC 6888)

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Crescent Nebula (NGC 6888), Gabriel Cardona
Powered byPixInsight

Crescent Nebula (NGC 6888)

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Description

The Crescent Nebula is an emission nebula energized by collisions between the stelllar wind from Wolf-Rayet star WR136 (in the center of the nebula) and the slower moving ejecta from the same star from when it bacame a red giant some 250,000 to 400,000 years ago.

There are Ha and OIII emmisions, thought the OIII emissions are quite faint and difficult to capture in my light polluted backyard, so here are mainly Ha data.

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Crescent Nebula (NGC 6888), Gabriel Cardona

In these public groups

The OSC Club (One Shot Camera)