Observation by James Weightman: Lunar Halo

Uploaded by

James Weightman

Observer

James Weightman

Observed

2021 Mar 24 - 22:00

Uploaded

2021 Mar 25 - 07:36

Objects

The Moon

Equipment
  • Canon EOS RP camera + 15mm Sigma lens + Tripod
Exposure

8 secs, f/3.5 ISO 1000

Location

Cirencester, Glos, UK

Target name

Moon & Clouds

Title

Lunar Halo

About this image

Admittedly meteorology rather than astronomy, light from the bright gibbous Moon refracted by hexagonal prism ice crystals in Cirrostratus clouds (otherwise a nuisance!) caused this striking halo - its reddish inner edge noted. Its diameter could be roughly estimated from the angular distance between Regulus on the left to Castor on the right - 40.6 degrees. This ties in reasonably with the theoretical radius of 22 degrees.

Files associated with this observation
Like this image
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.