British Astronomical Association
Supporting amateur astronomers since 1890

Secondary menu

Main menu

Home Forums Atmospheric Phenomena
Terms of use

Circumzenithal Arc at Night

1 post / 0 new
Offline
Last seen: 6 years 6 months ago
Joined: 10/01/2013 - 12:11
Circumzenithal Arc at Night

Posted by Mike Harlow at 20:51 on 2013 Sep 11

Thought some of you might be interested in this.I was out setting up my camera to image nova Delphinus recently and noticed a faint arc high up in Cygnus. To the naked eye it just looked like high cirrus cloud with no colour but when I took a time exposure it turned out to be a circumzenithal arc which I had only ever seen before in daylight. Within a few minutes of taking the photo it had gone...so a case of being in the right place at the right time!Mike.