September 14, 2020
HPWREN Cameras are ideal instruments for demonstrating additional astronomical facts
By Robert Quimby
Director, Mount Laguna Observatory
Department of Astronomy, San Diego State University
The HPWREN camera archive contains millions of images that, when formed into time-lapse movies, can be used to illustrate subtle changes over long periods of time. Many examples of this have been created with a focus on the Earth, for example a La Cima time lapse video of the vegetation regrowth over many years after the Cedar Fire in 2003, but the images also capture some of the sky above