Solar System Simulator
Solar System Sim is a program that simulates the N-body problem in
three dimensions, but it uses a generalized r^p force law for any given p.
The display is in perspective three-dimensions, can render pictures onto
the simulated bodies in real-time, draws a star field based on actual star
data, and is also capable of using cyan-red 3-D glasses for full
three-dimensional visualization. The idea is to convey a sense of "being
there" and interactivity. It also has a craft with thrusters that the user may use to
attempt transfer orbits and gravity assists. The program is also
accompanied by a variety of parameter files, including transfer orbits and
a Voyager 2 "Grand Tour".
After Mojave, Apple ended support for the Carbon API this app uses.
If you're not sure if it'll run on your macOS, you may download it so you can test.
The availability of resources to rewrite the app will determine if
support for new versions macOS after 10.14 becomes possible.
System Sim 2.2 - (1.3 MB) Universal Application release of Solar System
Sim version 2.2 for PowerPC and Intel Macs running OS X 10.3.9 through macOS "Mojave" 10.14.
Added endian conversions for proper file reading and writing.
Adapted source to Xcode. Updated
application and file icons to be fully OS X. Modified appearance and
behavior of dialog boxes and status window to be more compliant with the
Aqua UI guidelines, including using sheets. Add the appropriate
antialiased text to all displays.
SSS now recognizes both horizontal and vertical scroll wheels to guide the
camera movement around the system. This is great fun with the Mighty Mouse!
Improved the stars display using antialiasing to help making the star motion
smoother and more realistic-looking. Stars twinkle rather than crawl.
Modified the Plot Trails setting of the example files.
For OS 9 and pre-OS X 10.3.9, we also provide a
Carbon CFM version of SSS 2.2 (1 MB).
System Sim 2.1 Beta (Carbon) - (1.4 MB) This a beta release of Solar System
Sim version 2.1 for OS 9 and OS X. This download
contains example universes, including numerous image files of the planets.
System Sim 2.0.1 - (1.6 MB) This a shareware release of Solar System
Sim version 2.0.1. It is for PowerPC Macintosh running the
Classic Mac OS 8 and 9 only.