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Thursday, June 01, 2017

The Crescent Moon

Last Saturday night I set up my Celestron 8 inch EdgeHD telescope in my back yard.  I attached my Canon 70D with a 0.7x focal reducer (so I could fit the entire Moon on my APS-C sensor) and took some photos of the Moon.  Here are a couple, processed somewhat.

This first image used an exposure of 1/50 seconds at ISO 400.  I used an unsharp mask to sharpen the image.

This image was obtained with an exposure of 1 second at ISO 400.  Along with an unsharp mask, I stretched the image quite a bit to bring out the Earth-shine lit dark side of the Moon.  You can see some mountains over the southern limb of the Moon as well as a few stars in the sky around the Moon.

Sunday, May 28, 2017

A colorful Kitt Peak sunset

The view of sunset from Kitt Peak can be quite spectacular.  Of course, a pretty cloud filled sunset does not normally bode well for the nights observing program....

 This Sun Dog was visible at about the same time as the first image.

Just after sunset, this deep red glow was quite spectacular.

Saturday, May 27, 2017

Downtown Tucson at night.

Exposure 1 second at f/2.8, ISO 1600, 17mm f.l.
While in downtown Tucson one evening, I couldn't help but admire this scene with the tallest building in town lit nicely by the city lights.

Exposure 1/20 second at f/2.8, ISO 1600, 17mm f.l.
A statue near the Pima County Courthouse commemorating early Tucson settlers.