Celestial hemisphere:  Southern  ·  Constellation: Ophiuchus (Oph)  ·  Contains:  HD151392  ·  M 12  ·  NGC 6218
M12 Globular Cluster (LRGB) - 15 May 2019, Geof Lewis
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M12 Globular Cluster (LRGB) - 15 May 2019

Revision title: Rework of old data using PixInsight and Affinity Photo

M12 Globular Cluster (LRGB) - 15 May 2019, Geof Lewis
Powered byPixInsight

M12 Globular Cluster (LRGB) - 15 May 2019

Revision title: Rework of old data using PixInsight and Affinity Photo

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Acquisition details

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Description

Another in a series of globular clusters captured over a few nights of good seeing, during astronomical twilight, with a waxing 1st qtr Moon riding high.

The image has been cropped somewhat along the top and left, as I failed to accurately center the target in SGP before running the sequence.

Comments

Revisions

  • M12 Globular Cluster (LRGB) - 15 May 2019, Geof Lewis
    Original
  • M12 Globular Cluster (LRGB) - 15 May 2019, Geof Lewis
    B
  • Final
    M12 Globular Cluster (LRGB) - 15 May 2019, Geof Lewis
    D

B

Description: Levels adjustment to slightly brighten the core

Uploaded: ...

D

Title: Rework of old data using PixInsight and Affinity Photo

Description: A complete reprocessing of old data using PixInsight, with a final tweak using the haze removal filter in Affinity Photo

Uploaded: ...

Sky plot

Sky plot

Histogram

M12 Globular Cluster (LRGB) - 15 May 2019, Geof Lewis