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NASA's picture of the day demonstrates what happens if you leave your camera on timelapse while you fall asleep and then compose the resulting images into one. You get a picture of the movement of the stars as the Earth rotates!

This entry was originally posted at http://purplecat.dreamwidth.org/51600.html.

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From:

lukadreaming.livejournal.com

*Stares*

Ooh! Wow!

From:

wellinghall.livejournal.com

V nice too.

What are the off-centre yellow trails? Too many, and too low down, to be meteors ... fireflies?

From:

purplecat

NASA says they are fireflies, good guess!

From:

wellinghall.livejournal.com

Thanks!

From:

sixgun45lc.livejournal.com

That's very cool. I love the fireflies in the foreground.

From:

purplecat

They're very pretty aren't they!

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purplecat

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