Contains:  Solar system body or event
Waxing Crescent Moon (3% illuminated) on April 21, 2023, JDJ

Waxing Crescent Moon (3% illuminated) on April 21, 2023

Waxing Crescent Moon (3% illuminated) on April 21, 2023, JDJ

Waxing Crescent Moon (3% illuminated) on April 21, 2023

Equipment

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Acquisition details

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Description

Imaged the 3% illuminated waxing crescent moon on the evening of April 21, 2023.  The Earthshine illuminated region is nicely visible in the stretched version.

Imaged with a William Optics GT81 at F4.7 (382 mm focal length) using Flat6A II field flattener/0.8x reducer, UVIRcut filter, and ZWO ASI 533MC Pro.  Single exposure at gain = 100 with an exposure time of 0.25 seconds.

Processed in Pixinsight:  background removal using ABE, blur x terminator, noise x terminator, stretched using the generalized hyperbolic stretch script, and local histogram normalization.  Alternate versions are blends of different stretches.  The original post is a 50% blend of the original exposure and the GHS stretched version.

Comments

Revisions

  • Waxing Crescent Moon (3% illuminated) on April 21, 2023, JDJ
    Original
  • Waxing Crescent Moon (3% illuminated) on April 21, 2023, JDJ
    B
  • Waxing Crescent Moon (3% illuminated) on April 21, 2023, JDJ
    C
  • Waxing Crescent Moon (3% illuminated) on April 21, 2023, JDJ
    D
  • Final
    Waxing Crescent Moon (3% illuminated) on April 21, 2023, JDJ
    E

B

Title: Unstretched version

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C

Description: GHS stretched version

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D

Description: Animated GIF for a range of stretches between the original and full GHS stretch

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E

Description: Original and GHS stretched images

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Histogram

Waxing Crescent Moon (3% illuminated) on April 21, 2023, JDJ