The Leisurely Scientist

Posted July 19, 2018

LATEST IMAGE - Last Evening's Moon - July 18, 2018

Here is a four image composite of last evening's moon. Each image was the best 25% of 5,000 frames.
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount, ZWO ASI290MC, Televue Powermate 2.5X. Image date: July 18, 2018. Location: The Dark Side Observatory, Weatherly, PA, USA.

Greetings, and welcome to Leisurely Scientist! My name is Tom Wildoner, I have loved the science field, particularly the "Natural Sciences" since I was a child (a long time ago). This photo blog is my attempt to share science through photographs and also to help me organize my work. My interests are wide and include astrophotography, bird and nature photography, landscapes, waterfalls, macrophotography, and more. I hope to share some science information through my photography. I will try and explain processing techniques, equipment setup, and more. I hope you enjoy yourself here and put some of what you learn use. Comments and questions are always appreciated!

You can find me on TWITTER as @tdsobservatory, my image portfolio is available on FLICKR, and I post on REDDIT as leisurelyscientist and on Google+ as Thomas Wildoner. I also post images on my Facebook account at

My images have been used on UNIVERSE TODAY, EARTHSKY, The Washington Post, Sky and Telescope, Pennsylvania Parks and Forests Foundation, Earth Science Picture of the Day (EPOD), Amateur Astronomy Picture of the Day and numerous online media outlets and E-Magazines. I have a liberal policy regarding my images, they can be shared as long as credit is given for the image and the image is not edited in any way.

I also manage the Dark Side Observatory in Weatherly, Pennsylvania. The observatory can also be followed on FACEBOOK at

Wishing you clear skies!


Online References:

A short video showing the construction of the Dark Side Observatory from the design to first light.