|
| Date: | 4.6.2004 | Optics: | f = 20 mm |
|---|---|---|---|
| Place: | Tübingen | Observer: | T. Credner |
See also:
further images of Halos
M.G.J. Minnaert: "Light and Color in the Outdoors", Springer-Verlag
R. Greenler: "Rainbows, Halos, and Glories", Cambridge University Press
L. Cowley: "Atmospheric Optics" web site