The 45% Waxing Crescent Moon, May 2023

May 26th, 2023, 9:14 p.m. local time

There is a repeating theme this week – clear and calm temperatures, for the most part, minus one day. Tonight again was no different and the Moon is now almost at its first quarter. All of my astrophotography equipment was identical to last night’s. The only change, again, was the exposure setting I used in NightCap, which is rapidly going down. Last night I used 1/350 second, tonight was 1/700 second. If I can take the quarter Moon photo tomorrow night, under the near-same conditions, I am sure the exposure will be at 1/1200 second or perhaps much lower.

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
  • 1/700 sec exposure
  • ISO 57
  • Focal length: 7mm
  • Touchups in PaintShop Pro and AfterShot Pro

Thank you for reading my article. Donec deinde tempum.



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

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