Upload

Loading icon Loading...

This video is unavailable.

Sprites dancing above the Andes, and hydroxyl airglow

Sign in to YouTube

Sign in with your Google Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to like Eastview605's video.

Sign in to YouTube

Sign in with your Google Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to dislike Eastview605's video.

Sign in to YouTube

Sign in with your Google Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to add Eastview605's video to your playlist.

Uploaded on Jul 4, 2009

Unfiltered time lapse imagery looking eastward from Cerro Tololo Observatory, Chile (30.169 S, 70.805 W) in January, 2005. The view is toward the East, and the dark ridge is the spine of the Andes Mountains, with the bright star field of the Southern Sky above. The wave-like undulations are hydroxyl airglow emissions in the mesosphere modulated by mountain waves. The camera used to take the images was a small astronomical camera, Starlight Xpress MX716. The images are 10 sec integrations at approximately 12 sec intervals. The clip is played back at 10 fps, giving a speed up factor of approximately 120 compared to real time. Just above the top of the ridge line, on the right, one observes sprites generated by an unseen thunderstorm on the other side of the Andes, approximately 500 km to the east in Argentina (verified separately using GOES images). It is interesting to note the clarity of the atmosphere and the complete absence of haze - stars suddenly pop into view on the horizon. (Music: Excerpt from "Simple Gifts" by Elder Joseph, made popular in Aaron Copeland's "Appalachian Spring.")

Loading icon Loading...

Loading icon Loading...

Loading icon Loading...

The interactive transcript could not be loaded.

Loading icon Loading...

Loading icon Loading...

Ratings have been disabled for this video.
Rating is available when the video has been rented.
This feature is not available right now. Please try again later.

Loading icon Loading...

Loading...
Working...
to add this to Watch Later

Add to