Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)
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Bat & Squid - Natural Relative Intensities, Jon Rista
Bat & Squid - Natural Relative Intensities
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Bat & Squid - Natural Relative Intensities

Getting plate-solving status, please wait...
Bat & Squid - Natural Relative Intensities, Jon Rista
Bat & Squid - Natural Relative Intensities
Powered byPixInsight

Bat & Squid - Natural Relative Intensities

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Description

The Bat & Squid! Once a pair of objects seldom imaged together due to the extremely faint nature of Squid Nebula, also denoted OU4, an ultra-faint and unusual OIII planetary nebula, modern technology has made this interesting set of objects more common.

Rather than reproduce what so many have before, by over-stretching Squid nebula to make it more visible, I have instead attempted to depict the two objects with natural relative intensity levels. The Squid nebula is very faint and tenuous against the background of the Cosmic Bat, mostly a translucent husk with slightly more visible boundaries, than the oft-depicted brilliantly glowing neon blue tube.

This image employs light noise reduction in an attempt to preserve the fine structures of the Squid, which are quite sharp and filamentary in certain places against the deeper red backdrop of the Bat.

Combination of 5.5 hours of Ha and 11 hours of OIII from 2017, this is another reprocess of older data.

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Bat & Squid - Natural Relative Intensities, Jon Rista