The author is a teacher of physics, especially astronomy. He worked at the Nicholas Copernicus Observatory and Planetarium in Brno from 1970 to 2010. Currently, he is employed at CzechGlobe, Global Change Research Centre.
The text below is from 2002. For a contemporary home page see a file on a server amper.
He maintains a couple of www-mailinglists at the computer amper.ped.muni.cz, devoted to sustainable buildings, energy fluxes, astronomy and good lighting -- all the new texts (including first drafts) of him are announced there, and there he answers questions on these topics.
As a volunteer, he is a member of environmental organisation Veronica (works in its Eco-counselling programme) and of the Society for Sustainable Living (leads its regional branch in Brno).
Both fields meet at the issue of light pollution (svetlo.astro.cz in Czech). As a member of the International Dark-Sky Association, he recommends you to have a look at least at the Good Neighbor Outdoor Lighting brochure, or its Czech translation Dobré venkovní osvětlování.
The author offers mainly five kinds of products (see ev. his ftp directory):
In executable form (*.exe, for MS-DOS etc.,), the programmes from the package are available as exe_jh.zip (for PCs without co-processor) or exe87_jh.zip (for PCs with mathematical co-processor) or individually in the exe287 subdirectory, or as exe_fpc.zip (32-bit executables by the Free Pascal Compiler), but they should be downloaded only together with the pas_jh.zip.
The outstanding Free Pascal Compiler (included in the Debian distribution of Linux) enables to use the programmes under another platforms as well, some binaries are available in the linuxbin subdirectory.
One of the programmes is offered separately as well, as it is perhaps quite unique: the programme for constructing sundials.
Further texts and images on light pollution and good lighting
Some interesting links to other sites:
idos.datis.cdrail.cz --- timetable of railways. In may be convenient for you to have the cheap programme in your own computer --- then buy it from its author CHAPS and download the new data thrice a year from their page.
The author looks forward to hints from you.
email@example.com (můžete psát česky)
Nicholas Copernicus Observatory and Planetarium in Brno
Kraví hora 2
Brno 616 00
Phone: +420 (5) 41 32 12 87
(To be sure, that it still holds, I submit this page after each change
validation. The command is
if you would like to do the same with your files.)