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David Callejas

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January 20, 2019

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Armando Caussade
San Juan, Puerto Rico

01/17/2022
07:23 pm

Photographer's Website

Equipment Details:

Budget digital camera held afocally before the eyepiece of a terrestrial 76-millimeter telescope at 22x.

Post-processing Details:

GNU Image Manipulation Program (GIMP) on GNU/Linux: (1) conversion to grayscale; (2) levels correction to improve contrast; (3) rotation to put north at top; (4) crop; and (5) slight sharpening.

Image Details:

This photograph was taken at 7:23 pm (GMT-04), only 25 minutes before the predicted time for the full moon at 7:49 pm. Yet, the southern limb of the moon still shows a terminator from the fact that the moon was running 4.5 degrees north of the ecliptic, thus failing to place itself in precise opposition to the sun. The moon's elevation at the time was only 17 degrees over the eastern horizon.

Posted

January 20, 2019

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David Callejas

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About the Author:

David Callejas, Marketing Director, helps bring EarthSky's content to the world via online ads and other products. He creates strategies that help people around the world find us and appreciate the work we do. He helps manage the EarthSky Store and bring to you the new products that you love. He's the chief liaison between EarthSky.org and the world of commerce. All that, plus he helps post content and populate our pages on Facebook, Google+ and Twitter. Go David!