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Barnard 67, Barnard 75, Barnard 261, Barnard 73 aka The Snake Nebula, Barnard 68, 69 and 70

Barnard 67, Barnard 75, Barnard 261, Barnard 73 aka The Snake Nebula, Barnard 68, 69 and 70

Object Name: Barnard 67, Barnard 75, Barnard 261, Barnard 73 aka The Snake Nebula, Barnard 68, 69 and 70
Object Type:  Dark nebula
Constellation:  Ophiuchus
Acquisition Date:  May 26, 2020
Location: Tierra del Sol, San Diego County, California
Equipment:
• Imaging Scope – Takahashi FSQ-106 EDX IV
• Imaging Camera – ZWO ASI1600MM-C with EFW2
• Filters – Baader 36mm unmounted red, green and blue filters
• Guiding – Borg 77ED with ZWO ASI120MM-S
• Mount – Astro-Physics Mach2GTO
Camera Control – Sequence Generator Pro
Guider control – PHD2
Acquisition Details:
• Imaging Camera – gain 76, offset 15 – cooled to -15
• Exposures – 24 x 180 seconds for each of the red, green and blue filtered exposures
Processing:
PixInsight and Photoshop CC were used to process the images.
• PixInsight –
⁃ Image calibration, alignment and integration
⁃ HistogramTransformation for histogram adjustment
⁃ CurvesTransformation for color saturation boost
• Photoshop –
⁃ additional adjustments to histogram and color balance
Thanks for looking.  Click on the image below to see a larger image.

Barnard 67, Barnard 75, Barnard 261, Barnard 73 aka The Snake Nebula, Barnard 68, 69 and 70
Barnard 67, Barnard 75, Barnard 261, Barnard 73 aka The Snake Nebula, Barnard 68, 69 and 70
Posted in Dark Nebula

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