Showing posts with label meteor shower. Show all posts
Showing posts with label meteor shower. Show all posts

20070815

Meteor shower movie

Leonids meteor storm (*.mov, 66 MB)
http://metaresearch.org/expeditions/past/storms/Leonids-fullscrn-download.wmv

From MetaResearch.org, an apparently pseudoscientific (but interesting) website:
H. John Wood acquired an excellent 2-hour video of the 19 November 2002 Leonids storm. The image tube was pointed toward the radiant, making most of the trails very short. Matthew Willson has extracted a 6-minute portion near the storm peak so that our web site visitors can get a sense of what this rare spectacle was like. The video is sped up by approximately a factor of three from real time. However, the field of view covers only about 10% of the sky. So the video extract shows only about 1/3 of the real-time meteor rates that an on-site observer might have seen under ideal viewing conditions.

20070814

The showerhead effect

Janet Leigh in Psycho
(Paramount/Universal Pictures, 1960)

The meteor tracks for the Perseid meteor shower appear to diverge from the constellation Perseus (which is the epynomous "radiant" for that meteor shower). Although these meteor tracks are essentially parallel, they appear to radiate outwards from that point in the sky due to "The Showerhead Effect."