Video portrait of the Sun  APR 26 2013

In complete defiance of its parents, NASA's Solar Dynamics Observatory has stared directly at the Sun for the past three years. Here's a video of those three years made from still images taken by the SDO.

During the course of the video, the sun subtly increases and decreases in apparent size. This is because the distance between the SDO spacecraft and the sun varies over time. The image is, however, remarkably consistent and stable despite the fact that SDO orbits the Earth at 6,876 miles per hour and the Earth orbits the sun at 67,062 miles per hour.

The video notes say the animation uses two images per day...it would be nice to see the same animation with a higher frame rate. (via ★interesting)

Read more posts on kottke.org about:
astronomy   NASA   Sun   time lapse   video

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