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David Callejas

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January 20, 2019

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Roberto Ortu
Cabras, Sardinia, Italy

08/08/2023
04:47 pm

Photographer's Website

Equipment Details:

Telescope Celestron 114/910 Newton
Planetary camera QHY5L-II-C
Filter UV IR cut
Barlow lens 2,5X Tecnosky
Laptop computer

Post-processing Details:

Software: Sharpcap 4, PIPP, AS!3, Registax 6, Astrosurface U3, GIMP

Image Details:

This is a mosaic with the best photos of the planet that I got from May 23, 2023 until August 8, 2023, when it was a few degrees away from the Sun.
The image shows well its phases, very similar to those of the Moon, and the increase in its apparent diameter caused by the approach to the Earth. From the left you can see the gibbous phase of the planet with an illuminated percentage of just over 50%, then the crescent phase in which progressively reduces its percentage illuminated to become a very thin sickle.
The phases of Venus was first observed by Galileo Galilei in 1610.

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!