Airglow in Andromeda | JJ Modig

Photographer
JJ Modig
Email
jpmodig@att.net
Location of photo
ASKC Dark Sky Site
Date/Time of photo
July 21 around midnight
Equipment
Canon 300d with a Canon 28-70mm lens at 28mm f/5.6. 2 minutes exposure time. ISO 1600
Description
I was taking some star trail pictures when I noticed these weird greenish clouds. I found out the next day that it was an uncommon atmospheric phenomenon known as airglow which is caused by a chemical reaction in the upper atmosphere.
All comments must follow the Sky & Telescope Terms of Use and will be moderated prior to posting. Please be civil in your comments. Sky & Telescope reserves the right to use the comments we receive, in whole or in part, and to use the commenter’s username, in any medium. See also the Terms of Use and Privacy Policy.

COMMENT