'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.
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