Wednesday, August 26, 2009

Perseid Meteors Near Tioga Pass: HD Video Timelapse II

To avoid smoke from forest fires in California I traveled to this location at an elevation of 10,000 feet near Tioga Pass in the Sierra Nevada.

To increase the visibility of the meteors, click through to the video's Flickr page and make sure you have the HD display switched on (click on the HD symbol). Then look near the center of the right half of the video to see the most meteors.

This sequence was assembled from 517 21 megapixel photos. The rescaling down to 1280 x 720 for uploading to Flickr helps eliminate much of the noise. The photos on this night were exposed for 10 to 20 seconds at an ISO sensitivity of 3200.

This was taken on the peak night for the meteor showers, but the moon makes all but the brightest meteors difficult to see, especially at these lower resolutions.