Free planetary software for mac

Requirements:
Mac OS X 10.0 or later

TriVectus Planets is a screen saver that displays and animates various planetary systems. In addition, youll see exploding planets, asteroid swarms, rouge asteroids, and nuclear war, among other things. Watch a planets moon spiral into space after the planet explodes, or see how a rouge asteroid wrecks havoc with its gravitational field as it passes through the system.
TriVectus Planets is a chaotic world. If you only let it run for 5 minutes, you wont see half of whats in there. Because its world is random, even we cant predict when youll see what. If you want to see a swarm of asteroids devastate a planetary system, it may take a minute or a half hour, but thats part of the fun!
Enhancements:
- Improved code to handle low video memory
- Optimized images to lower disk size.

Cenon Astro is a powerful Astrology Software based upon our graphics application Cenon. This makes Cenon Astro probably the only Astrology Tool that allows full editing of Chart Masks plus all generated Output. Cenon Astro is a beautiful tool with many unique features.
Main features:
- Event charts, birth charts, Composite Charts
- Astro geographical Maps
- Planetary nodes and Asteroids
- High precision NASA Ephemeris Data based on the Swiss Ephemeris
- Accumulating Aspect Search
- Astro Clock
- Topocentric degree scale for houses
- Aspect table with ecliptical mirrors
- Customizable masks for charts and maps
- All charts are fully editable
- Comfortable event management
- City database
- Platforms: Apple Mac-OS X, Linux (GNUstep), OpenStep,...

Lynkeos is a Cocoa application dedicated to the processing of astronomical (mainly planetary) images taken with a webcam through a telescope.
Read the introduction it is a good starting point to know what Lynkeos does, why and how.
Please visit this small gallery of images made with Lynkeos.
Main features:
- collect the movies and/or pictures,
- collect calibration (dark and flat fields) movies and/or pictures (optional),
- align the images,
- select the best images,
- stack the selected ones,
- process the resulting image.
Enhancements:
- This version adds a plugin for reading AVI and MPEG files;
- it also, hopefully, fixes the last issues related to being "Universal".

RendezvousWithVesta is a graphical software tool developed by Pasquale Tricarico at the Planetary Science Institute, in support to the NASA DAWN mission. RendezvousWithVesta will allow you to accurately simulate the dynamics of a spacecraft orbiting the asteroid (4) Vesta.
The motivations for developing this tool are:
- understand how the physical parameters of Vesta affect the stability of low polar orbits;
- understand how the physical parameters of Vesta and the orbital elements of DAWN affect the coverage of Vestas surface;
- provide a fast and reliable tool for the generation of orbits suitable for input in the Science Opportunity Analyzer (SOA) tool.
The output files generated are:
- a SPICE SPK kernel describing the orbit of DAWN around Vesta,
- a formatted ASCII data file containing information about DAWNs orbit, phase angle, and equatorial coordinates with respect to Vesta; see the header of the file for more details;
Main features:
- validated numerical algorithms, tested on NEAR mission data, and capable of accurately reproducing NEARs orbit around Eros;
- complete control over Vestas physical properties: mass, mass distribution model, shape model, rotation period, and pole ecliptic latitude and longitude;
- control over DAWNs initial orbit around Vesta: epoch, radius, equatorial (Vestas equator) inclination, phase angle;
- export simulations as SPICE kernel files and as ASCII data files;
- 3D graphical visualization of the numerical simulation, including the ground tracking of DAWN over Vestas surface;
- 2D plot of the altitude of the spacecraft and of the Vesta profile at nadir;
- completely open source and part of the ORSA framework;
- support for all major platforms: Linux, Mac OS X, Windows;