'Nightfall' simulates eclipsing binary stars and produces animated views, synthetic lightcurves, radial velocity curves, and eventually determine the best-fit model for a given set of observational data of an eclipsing binary star system. It takes into account the non-spherical shape of close binary stars, mutual reflection, and some other effects. It comes with documentation, on-line help, and observational data of real binary stars. The program supports but does not require the Gnome desktop. 'Nightfall' can handle the following configurations: overcontact (common envelope) systems, eccentric (non-circular) orbits, surface spots and asynchroneous rotation (stars rotating slower or faster than the orbital period), and the possible existence of a third star in the system ('third light').
released on 30 June 2004
|License||Verified by||Verified on||Notes|
|GPLv2orlater||Janet Casey||27 August 2002|
Leaders and contributors
|See the AUTHORS file in the distribution for a complete list||Contributor|
Resources and communication
|Bug Tracking||VCS Repository Webview||http://www.la-samhna.de/contact.html|
|Required to use||GTK+ 1.0.4 or later|
|Weak prerequisite||OpenGL *or* MesaGL|
|Weak prerequisite||gtkglarea (both for OpenGL support)|
This entry (in part or in whole) was last reviewed on 22 January 2008.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.
The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.