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Published on Jul 20, 2011
Inspired by Randy Halverson (http://dakotalapse.com/), Tom Lowe (timescapes.org), and Terje Sørgjerd (Facebook.com/TSOPhotograp hy), I began dabbling in time lapse astrophotography earlier this year. This is my first attempt at a time lapse movie, using sequences shot exclusively from near where I live outside of Baltimore. If you compare it to Randy's work, though, I don't hold a candle to him (or the other guys). :-D Granted, they live in darker, less light polluted skies than I do. If you are fortunate enough to live away from a light polluted environment, your skies will be much better than these in the video here. Take that into account when you're trying to see the stars. ;-)
Most of the streaks you see through some of the sequences are planes (not meteors). The blippy short greenish streaks you see especially in the last sequence are fireflies. At 0:36, during the second moonset sequence, there are two brightish stars next to each other that enter the field of view from the top. The left of the two is actually the planet Saturn (the star to the right is Porrima, in the constellation Virgo). The sequence with the circular farm plow thing was taken a day after the full moon in July. The sequences at 0:13 and 0:53 are staring straight south into the Washington, DC, light dome. You can barely make out the top of the constellation Scorpio cresting above the trees. The Milky Way, no chance to see.
The sequences ranged from 1-4+ hours in length, averaging 20 second exposures per image, and set to 24 frames per second in the video sequences. The sequences at 0:26 and 0:31 were shot with my little Canon SD1100 point-n-shoot digicam, ISO 800, 13 second exposures per shot. All the rest were done with my "tax return camera", a Nikon D7000, 20 second exposures, ISO 1600-2500. The music score is "I Am Iron Man" from the Iron Man 2 soundtrack.