Celestial hemisphere:  Northern  ·  Constellation: Sagitta (Sge)  ·  Contains:  M 71  ·  NGC 6838
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M71 Globular Cluster - 17 Sept 2019, Geof Lewis
M71 Globular Cluster - 17 Sept 2019
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M71 Globular Cluster - 17 Sept 2019

Revision title: Upped Lum and Saturation

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M71 Globular Cluster - 17 Sept 2019, Geof Lewis
M71 Globular Cluster - 17 Sept 2019
Powered byPixInsight

M71 Globular Cluster - 17 Sept 2019

Revision title: Upped Lum and Saturation

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Acquisition details

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Description

It's only the 2nd time I've imaged this cluster and first time for a few years and with a mono CCD camera. I chose this as the full Moon was making the sky too bright for fainter targets. I think that it makes a fine sight seen against the backround of the rich star field of the Milky Way.

Comments

Revisions

  • M71 Globular Cluster - 17 Sept 2019, Geof Lewis
    Original
  • M71 Globular Cluster - 17 Sept 2019, Geof Lewis
    B
  • Final
    M71 Globular Cluster - 17 Sept 2019, Geof Lewis
    C

B

Title: Reprocessed using PixInsight.

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C

Title: Upped Lum and Saturation

Description: Used Curves Transformation with Lum mask to increase luminance and saturation. Also applied background neutraliastion to remove slight purple cast. Background remains a bit blotchy, but then there's not a heap data in this image.

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Sky plot

Sky plot

Histogram

M71 Globular Cluster - 17 Sept 2019, Geof Lewis