Ephemerides is a computer program which computes times of minima of eclipsing binary stars. The data of variable stars are read from several catalogue files. It is intended to be used off-line, no internet connection is required at run-time. The current version works in the MS Windows 98 SE, 2000, XP, Vista and Windows 7, 8.1 and Windows 10. It is intended for visual, CCD and PE observers.
The graphical user interface is very simple and intuitive. It can be run in the two operation modes: the computation ephemerides for one specific night or the computation of ephemerides for a particular variable star and a season. It is possible to print the table of minima on a connected printer or save it to an ASCII, HTML or CSV file.
It is possible to build and use a custom catalogue file of your own variables.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License, Version 2, as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
A computer with MS Windows 98 SE, ME, 2000, XP, Vista or Windows 7, 8.1 and 10. There are no special requirements on hardware. Program takes about 2.8 MB on your hard disk and a few megabytes of RAM.
Click on the following link and save the file to your disk. The packages also contains the electronic help in english and czech language.
ephemerides-1.18-win32.exe (1.39 MB)
Current installation package contains following catalogue files:
BRNO - B.R.N.O. project on eclipsing binary observing, see http://var.astro.cz/brno/, valid to 7. October 2015
BRKA 2005 - selection of stars from the B.R.N.O. project, now obsolete
Prosper - project, which is concerned on new or neglected eclipsing binary stars, valid to 10. Aug 2006
The BRNO catalog file was compiled using the information from the O-C gate. Because the original source does not contain some useful information, the GCVS catalog and its supplements was used to fill in the variability type, eclipse duration (D) and GSC identification.
There are also tables of predefined locations. Download the package, unpack it to the installation directory.
Download the binary installation package (see above). Save it to your disk and start. The installation package contains simple wizard, which will guide you through the rest of the installation. It doesn't require rebooting the computer.
The electronic help is included in the installation. You can open it from the 'Start' menu or in the application main window by clicking on the button with the question mark on the toolbar. When everything has failed, please contact the author.
Run 'uninstall' program in the installation directory or open the Control panel and use the 'Install or remove program' tool.
Yes, there is a package with source codes. It's been written in Borland Delphi 7.
ephemerides-1.18-src.zip (1.42 MB)
Ing. David Motl,
Send bug reports, comments, suggestions to the mailbox:
Pokorný Z.: Astronomické algoritmy pro kalkulátory
Zejda, M. a kol.: Pozorování proměnných hvězd I., Brno 1994
Zejda M. a kol.: Katalog BRKA 2005, http://var.astro.cz/brno/brka.html
NASA Learning Technologies, World Wind 1.2e, http://worldwind.arc.nasa.gov/ - the image of the Earth
SOHO (ESA & NASA), http://sohowww.nascom.nasa.gov/ - the image of the Sun
Yale Bright Star Catalog - star catalogue on sky chart tool
Nullsoft Scriptable Installation System, the instalation compiler, by Nullsoft, http://nsis.sf.net
O-C gateway, http://var.astro.cz/ocgate/
Samus N.N., Durlevich O.V., Kazarovets E V., Kireeva N.N., Pastukhova E.N., Zharova A.V., et al., General Catalogue of Variable Stars (Samus+ 2007-2012), VizieR On-line Data Catalog: B/gcvs
Description: The C-Munipack is the software package, which offers the complete solution for reduction of images carried out by CCD camera, intended on a observation of variable stars. Each step of reduction process can be run from the command line or via simple and intuitive graphical user interface.
Licence: GNU GPL
Home Page: http://c-munipack.sourceforge.net/