Celestial hemisphere:  Southern  ·  Constellation: Canis Major (CMa)  ·  Contains:  16 CMa)  ·  The star Udra (ο1 CMa
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Dolphin Head Nebula in RGB w/ OIII Luminance, James Sokolowski
Dolphin Head Nebula in RGB w/ OIII Luminance
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Dolphin Head Nebula in RGB w/ OIII Luminance

Getting plate-solving status, please wait...
Dolphin Head Nebula in RGB w/ OIII Luminance, James Sokolowski
Dolphin Head Nebula in RGB w/ OIII Luminance
Powered byPixInsight

Dolphin Head Nebula in RGB w/ OIII Luminance

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Description

Spent about 8 "half nights" acquiring RGB & OIII data on the Dolphin Head Nebula.  I used the OIII as luminance to highlight regions excited by shocks as opposed to photoionization.  Had to save the image as a PNG since even a minimally compressed JPEG / Other introduced unfortunate loss of details and color variations.

Also, sorry for the "no data" notch in the lower left.  This is a two panel mosaic but I manually defined each panel instead of using NINA's intrinsic mosaic capabilities... MY BAD !!  I was able to crop the upper right notch, but not this one as I wanted my cute little dolphin to keep his/her entire nose !!

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Dolphin Head Nebula in RGB w/ OIII Luminance, James Sokolowski

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Central USA