Astronomy Picture of the Day
The Pelican Nebula in Red and Blue
The Pelican Nebula in Red and Blue
2021 March 1

Explanation: The Pelican Nebula is changing. The entire nebula, officially designated IC 5070, is divided from the larger North America Nebula by a molecular cloud filled with dark dust. The Pelican, however, is particularly interesting because it is an unusually active mix of star formation and evolving gas clouds. The featured picture was processed to bring out two main colors, red and blue, with the red dominated by light emitted by interstellar hydrogen. Ultraviolet light emitted by young energetic stars is slowly transforming cold gas in the nebula to hot gas, with the advancing boundary between the two, known as an ionization front, visible in bright red across the image center. Particularly dense tentacles of cold gas remain. Millions of years from now this nebula might no longer be known as the Pelican, as the balance and placement of stars and gas will surely leave something that appears completely different.

  High Resolution Image
Tomorrow’s Image: more from mars
Credit & Copyright: M. Petrasko, M. Evenden, U. Mishra (Insight Obs.)
 Courtesy of Astronomy Picture of the Day Index - Main Page & Astronomy Picture of the Day


powered by Cumulus v1.9.3 (1059)
Ambient Weather VWS v14.00
Top Website Map Copyright © 2007 - 2021 Foresthillweather.com Never base important decisions on this or any weather information obtained from the Internet