The 14% Waxing Crescent Moon, May 2023

The 14% Waxing Crescent Moon, May 2023

May 23rd, 2023, 8:49 p.m. local time

This week continues to provide very clear evening skies. The Moon is now above Venus, and tonight was in proximity to Castor and Pollux, of the Constellation Gemini. Astrophotography-wise, I decided to image only the Moon, at 14% illumination, in comparison to the 6.4% illumination two nights ago. The “higher” Moon makes telescope alignment and focusing easier, plus avoids looking through logarithmically less atmosphere.

Equipment Used:

  • 127mm Mak-Cass telescope
  • 23mm eyepiece
  • No eyepiece filter
  • iPhone 14 Pro
  • Smartphone telescope eyepiece adapter
  • NightCap app on iPhone
  • f/1.8
  • 1/60 sec exposure
  • ISO 57
  • Focal length: 7mm
  • Touchups in PaintShop Pro and AfterShot Pro


I write frequently about astrophotography, technology advice, and my other interests like science fiction. I have over 30 years of experience in computer programming, information technology, and project management.

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