I see the sky move under my feet

Bad Astronomy
By Phil Plait
May 30, 2011 7:00 PMNov 20, 2019 12:28 AM

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[UPDATE: Just FYI, I changed the links below to a new version of the video with better audio.] My love of time lapse night sky shots is on record (see Related Posts below), and I was all set to point you to this simply stunning video that's been making the web rounds the past couple of days, showing the sky circling above the Very Large Telescope observatory in Chile... ... but then I found out that Youtube user bulletpeople took that video and manipulated it a little. He changed the point of view a teensy bit, just a scosh, so that instead of the sky moving around us in a geocentric fashion, the Earth rotates under the sky:

[embed width="610"]http://www.youtube.com/watch?v=nkn2ZXWDl6k[/embed]

[Set the resolution to 720p and make it full screen for the best effect.] How cool is that? I won't say this frame of reference is more real than our usual everyday geocentric one*

, because no frame is more real than any other

. But it does give you a little bit of cosmic perspective, doesn't it? Don't ever forget: we live on a tilted spinning ball revolving around a star that's orbiting the center of the Milky Way galaxy that's on the outskirts of the Virgo galaxy cluster that's part of the Local Supercluster that's in an expanding Universe that not only gets bigger every second but gets bigger faster every second. That's a lot to handle, I know... but it's real, and it's true, and it's awesome.

Tip o' the lens cap to PopSci for the original video, and Scottie Davis for the edited one. Original video credit: Stéphane Guisard and Jose Francisco Salgado/ESO.


^* Not to be confused with a capital-G Geocentric one.


Related posts: - Incredibly, impossibly beautiful time lapse video - Australian Outback time lapse - Dust, from the desert below to the galaxy above - Stunning winter sky timelapse video: Sub Zero - OK, because I like y'all: bonus aurora timelapse video - Sidereal Motion - Amazing wide-angle time lapse night sky video - AWESOME timelapse video: Rapture

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