Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  M 22  ·  NGC 6656  ·  The star 24Sgr
M22 Globular Cluster, Paul Winn
M22 Globular Cluster
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M22 Globular Cluster

M22 Globular Cluster, Paul Winn
M22 Globular Cluster
Powered byPixInsight

M22 Globular Cluster

Equipment

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Acquisition details

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Description

This is the Globular Cluster M22 in Sagittarius. M22 is one of the nearer globular clusters to Earth at a distance of about 10,600 light-years away and roughly 70,000 stars in the cluster.

In PixInsight the follow actions where performed

Automatic Background Extraction

Background Neutralization

Color Calibration

Curves to adjust image brightness and set background

ACDNR to reduce Noise

HDR to Reduce Core Brightness of the Cluster

Color Saturation Adjustment

Minor Curves again to adjust Images Brightness and Color

Saved as 16bit file

In Photoshop

Minor Color Adjustments - Color Balance Looked a little to blue in Photoshop

Used the Astronomy Tools Action Set

Make Stars Smaller 1x

Reduce Small Blue/Violet Halos 2x

Final Image Adjustment was minor curves

Comments

Sky plot

Sky plot

Histogram

M22 Globular Cluster, Paul Winn