Tuesday, August 27, 2013

Moon Silhouette Alignment Predicted by The Photographer’s Ephemeris

Whether in app form or on the web, The Photographer's Ephemeris () is a great free way to predict sun and moon angles by day and time. I hear good things about PhotoPills () but I don't feel like forking over $10 just yet when TPE is free in web form.

Using my photos from two nights ago that didn't quite align, I was able to determine the correct moon altitude (about 2°30') and azimuth (about 70°45'). Back-tracking, that means the moon should actually rise at about 68° azimuth. 

Now, if I can just find a time when the crescent moon will rise at 68° around pre-dawn twilight I can probably get a much nicer photo! I am pretty please with this one though, I just wish I didn't have to lighten the background in Photoshop so much. It's always something huh?

Using the visual search function on the iOS app, a crescent moon won't be in this position at sunrise until June 26, 2014 at 5:57am. A full moon won't rise at sunset in this position until November 18, 2013 at 6:28pm, or December 17, 2013 at 6:01pm, but then not again until December 2014.

Moon Silhouette
Lightened the sky a little with Photoshop
Moon under a roof
Moon under a roof, how about that?

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