HaloSim
The software HaloSim was written by Les Cowley and offers a lot of settings: crystal types, orientation, number of different crystals, camera projection, and, and, and...
HALO v2.5d
Halo 2.5 is a program for recording and analyzing halo observations according to the schema used in the Halo Observation Section (SHB) of the Meteor Working Group e.V. (AKM). It facilitates the convenient recording of your own observations, the creation of reporting forms and observation statistics, and a large number of statistical evaluations. The program runs under DOS and Microsoft Windows.
The halo key itself is available as a PDF file. It is intended for double-sided printing on a laser printer. The program author Sirko Molau is always available for further information.
Anyone interested in additional data material from the SHB besides the year 2005 contained in the program, please contact Wolfgang Hinz.