Pure Mac


APOD Grabber





ConverTable Planets


DSLR Shutter






Moon Tool



PHD Guiding





Stargazer's Delight

Starry Night



Where is M13?

Astronomy Picture of the Day Archive

Mac OS X for Astrophysicists

Search Pure Mac

Pure Mac









Game Utilities

Online Games



Sports & Racing





Calculators & Math

Charts & Graphs



Hobbies & Crafts




Teaching Aids






Distributed Computing


File Transfers

Internet Utilities


Online Games

Remote Access



Video Calling




Classic OS Updates





Media Center

MP3 Tools


Photoshop Plug-ins

3D & Animation




Classic OS Updates

Command Line

Disk & File


Malware Scanners



Screen Capture

Screen Savers


System Enhancements






Font Utilities






Task Managers


Word Processing




Browser Add-ons

HTML Editors

Page Rippers


Social Networking

Web Cams

Web Graphics

Web Server

Software Index

Icon APOD Grabber 1.2

A little application to help view, browse, and download images from NASA's Astronomy Picture of the Day web site. It will also set your desktop picture.
  • License: Freeware
  • Developer/Publisher: Maury McCown
  • Modification Date: December 1, 2006
  • Requirements: Mac OS X 10.2 or higher

Home Page

icon AstroGrav 3.2.1

AstroGrav is a precision solar system simulator that calculates the gravitational interactions between all astronomical bodies, so that the motions of asteroids and comets are accurately simulated. The effects of general relativity are taken into account, and superb interactive 3D views allow you to easily rotate and zoom your view while the solar system evolves.
  • License: Demo, $79
  • Developer/Publisher: AstroGrav Astronomy Software
  • Modification Date: December 22, 2015
  • Requirements: Mac OS X 10.7 or higher

Home Page

icon AstroImageBrowser 1.1.2

AstroImageBrowser is a flexible and powerful front end to Digitized Sky Survey (DSS) internet repository of astronomical images for MacOS X 10.4 (or greater) and is distributed as shareware. Images of astronomical objects in any part of the sky can be downloaded, manipulated, overlayed (with a grid, camera/CCD geometries, object and star labels or other pictures), converted, scaled, colorized, annotated, blinked, saved, cached and printed. AstroImageBrowser is particularly useful as an astrophotography planning tool but can equally well be used to explore or browse astronomical objects. After you have planned and taken your picture you can use AstroImageBrowser to superimpose it on the DSS image. People interested in Astronomy should find AstroImageBrowser useful and fun even if they don't have a telescope.
  • License: Shareware, $15
  • Developer/Publisher: Rod
  • Modification Date: August 17, 2006
  • Requirements: Mac OS X 10.4 or higher


Universal Binary File Size: 4.2 MB

Home Page

Icon AstroPlanner 1.5.2

AstroPlanner is a software application for Macintosh and Windows computers that facilitates astronomical visual observation planning and logging as well as control of Meade telescopes that use the LX200, LX200GPS or Autostar controllers, Celestron NexStar scopes, Astro-Physics GTO mounts, the Vixen SkySensor 2000 system , and several others. It also incorporates the Best Pair functionality for selecting optimum telescope alignment stars and tools for facilitating iterative and drift polar alignment via computer control of the telescope. It is designed to enable the observer to set up a list of astronomical objects he/she wishes to observe. These are either entered manually, by lookup in the supplied database of astrometric catalogues (e.g. Messier, NGC, SAO, etc.), or by importing them from suitably formatted text files. Solar system objects are also supported (sun, moon, planets, comets and minor planets) and comet/minor planet orbital elements can be imported in the usual formats (from a range or sources including the ASTORB and MPCORB databases).
  • License: Shareware, $20
  • Developer/Publisher: iLanga
  • Modification Date: August 1, 2006
  • Requirements: Mac OS X and Mac OS 8.6 or higher


OS X PPC File Size: 9.9 MB


Download PPC File Size: 10.0 MB

Home Page

Icon Celestia 1.5.1

Unlike most planetarium software, Celestia doesn't confine you to the surface of the Earth. You can travel throughout the solar system, to any of over 100,000 stars, or even beyond the galaxy.
All movement in Celestia is seamless; the exponential zoom feature lets you explore space across a huge range of scales, from galaxy clusters down to spacecraft only a few meters across. A 'point-and-goto' interface makes it simple to navigate through the universe to the object you want to visit.
Celestia is expandable. Celestia comes with a large catalog of stars, planets, moons, asteroids, comets, and spacecraft. If that's not enough, you can download dozens of easy to install add-ons with more objects.
  • License: Freeware
  • Developer/Publisher: Redivi LLC
  • Modification Date: May 5, 2008
  • Requirements: Mac OS X 10.3 or higher

Home Page

Icon ConverTable Planets 1.7

ConverTable Planets is a freeware weight converter... for use on other planets. Plus, you can view the planets in their true relative sizes, and learn your age on other planets.
  • License: Freeware
  • Developer/Publisher: Synergy Creations
  • Modification Date: August 31, 2004
  • Requirements: Mac OS X 10.1 or higher


OS X PPC File Size: 1.5 MB

Home Page

Icon DashPhoon 1.4

DashPhoon is a Mac OS X Dashboard widget that displays the phase of the Moon.
DashPhoon can either display the Moon as it appears now, or else at some other time. In the latter case, the display can be frozen at a particular time, adjusted by keystrokes, or advance rapidly by hours or days.
  • License: Freeware
  • Developer/Publisher: Kevin Schoedel
  • Modification Date: March 10, 2008
  • Requirements: Mac OS X 10.4 or higher

Home Page

Icon DSLR Shutter 1.2

DSLR Shutter is designed to be a simple tool to capture long-exposure images from digital SLR cameras using their "bulb" setting. It allows you to specify the number of frames, their duration, and various delays to act as a software interval timer for your camera. It is a cross-platform application with both Windows and OS X versions.
  • License: Freeware
  • Developer/Publisher: Stark Labs
  • Modification Date: August 31, 2006
  • Requirements: Mac OS X 10.4 or higher


Universal Binary File Size: 4.1 MB - Universal

Home Page

Icon EquinoX 6.11.0

Equinox is a powerful shareware astronomy program for OS X. This program has many features for both the beginner and advanced amateur astronomer. It has 13 different filters for organizing deep sky objects and many controls to adjust the sky display. Equinox can run your astro-imaging webcam and has full SBIG camera support. It will even control your telescope with voice commands.
  • License: Shareware, $39
  • Developer/Publisher: Microprojects
  • Modification Date: April 20, 2009
  • Requirements: Mac OS X 10.4 or higher

Home Page

Icon LunaSaver 1.2.4

A simple Screensaver for Mac OS X which displays the current phase of the moon, along with some detailed lunar information.
  • License: Freeware
  • Developer/Publisher: John Schilling
  • Modification Date: December 8, 2006
  • Requirements: Mac OS X 10.3 or higher


Universal Binary File Size: 803 Kb

Home Page

Icon MacAstronomica 2.0.5

MacAstronomica generates sky maps at any time, from anywhere on Earth. The maps show all the planets and stars visible to the naked eye, as well as some galaxies and nebulas, the Ecliptic, meteor showers and the Milky Way. Constellations are drawn in their traditional form, and a table lists the visible objects. MacAstronomica also features an Orrery that simulates the solar system, a sundial/moon dial, and a lot more. The interface is very elegant and easy to use. And finally, MacAstronomica lets you print customized sky maps.
  • License: Shareware, $25.00
  • Developer/Publisher: Jacques Trottier & Alexandre Trottier
  • Modification Date: March 20, 2004
  • Requirements: Mac OS X 10.2 or higher


OS X PPC File Size: 1.1 MB

Home Page

Icon MoonDock 1.2.3

MoonDock, a lightweight application designed for displaying up-to-date images of the Moon phase in your system MacOS X Dock or as a floating Moon image on your desktop. MoonDock also enables you to examine phase information for specific dates and times between 2001 and 2015. If you are an amateur astronomer, learning about the night sky or would just like to have the Moon on your desktop this is for you.
  • License: Freeware
  • Developer/Publisher: Gary C. Martin
  • Modification Date: July 26, 2002
  • Requirements: Mac OS X 10.1 or higher


OS X PPC File Size: 2.0 MB

Home Page

Icon MoonMenu 3.0.5

MoonMenu™ draws the current phase of the moon in the menubar. The menu, when selected, reveals the following information:
A textual description of the moon phase
Illumination percentage
The moon's age in days
Current lunation number
Farmers' Almanac names for the current lunation
Upcoming quarter predictions
Automatic "blue moon" detection that actually colors the moon blue
Sun rise/set times
Twilight rise/set times
Moon rise/set times
  • License: Shareware, $12
  • Developer/Publisher: Selznick Scientific Software
  • Modification Date: February 22, 2012
  • Requirements: Mac OS X 10.5 or higher

DownloadIntel File Size: 3 MB

Home Page

Icon Moon Tool 1.0.1

This application displays the moon in its current phase along with detailed information on the Moon's phase cycle, subtends and distance from the earth.
  • License: Freeware
  • Developer/Publisher: Richard Knuckey
  • Modification Date: April 1, 1994
  • Requirements: 680x0 or PPC


680x0Classic PPC File Size: 85 Kb

Parent Directory

icon Nebulosity 1.4.9

Nebulosity is designed to be a powerful, but simple to use capture application for your Canon DIGIC II DSLRs and for the Meade DSIs CCD camera and processing application for a wide range of astronomy CCD cameras (just about anything that uses FITS format). Its goal is to suit people ranging from the novice imager who wants to create his or her first images to the advanced imager who wants a convenient, flexible capture application for use in the field. In it, you get a host of purpose-built powerful tools to make the most out of your images.
  • License: Shareware. $40
  • Developer/Publisher: Stark Labs
  • Modification Date: January 17, 2007
  • Requirements: Mac OS X 10.4 or higher

Home Page

Icon ORSA 0.7.0

Orbit reconstruction, simulation and analysis. Started in summer 2001 just as a simple collection of celestial mechanics C++ classes, the ORSA project now collects many general classes, a graphical interface running under Linux/Unix, Mac OS X and Windows, and a number of tutorial programs. The ORSA project is under heavy development, and at the moment is beta quality software.
  • License: Freeware
  • Developer/Publisher: Pasquale Tricarico, Kuba Ober, Greg MacDonald et al.
  • Modification Date: January 18, 2005
  • Requirements: Mac OS X 10.3 or higher


OS X PPC File Size: 729 Kb

Home Page

icon PHD Guiding 1.4

PHD Guiding is designed to be "Push Here Dummy" simple, yet provide powerful, intelligent auto-guiding of your telescope. Connect your mount, your camera, select a star, and start guiding. That's it!
  • License: Freeware
  • Developer/Publisher: Stark Labs
  • Modification Date: January 28, 2007
  • Requirements: Mac OS X 10.4 or higher

Home Page

Icon SciSoft 2008.9.1

Scisoft is a project within the European Southern Observatory to provide a uniform collection of astronomical software packages (eg, Pyraf, IRAF, STSDAS, ESO-MIDAS). Scisoft for Mac OS X is modeled after the ESO Scisoft project but is not an official Scisoft release and is neither associated with ESO, STScI, nor NOAO.
  • License: Freeware
  • Developer/Publisher: ST-ECF
  • Modification Date: September 1, 2008
  • Requirements: Mac OS X 10.4 or higher

Home Page

Icon ScopeDriver 3.1.2

ScopeDriver has become a popular planning, logging, and control interface for your astronomical telescope. The program is designed with elegant simplicity. It places modest demands on your system, runs quickly, and does not clutter your screen with unnecessary user interface "features." It has been designed and refined by active, serious observers.
It allows you to connect your computer to one of the following astronomical telescopes:
Meade Autostar with RS-232 serial port
Meade LX200 (including LX200 GPS)
Losmandy Gemini Level 1 or Level 3
Telescope compatible with Autostar, LX200 or Gemini command set
And since so many instruments are compatible with some subset of the LX200 command set, there's a good chance ScopeDriver will work with your instrument or mount. (At this time, ScopeDriver does not support Celestron instruments [more info.], since many of ScopeDriver's advanced features are not controllable via the Celestron serial interface.)
  • License: Shareware, $30
  • Developer/Publisher: Stephen E. Hutson
  • Modification Date: March 23, 2008
  • Requirements: Mac OS X 10.1 or higher

Home Page

Icon SkyChart III 3.6.4

SkyChart III is an advanced planetarium program that accurately simulates and displays the sky as it appears in the present, as well as thousands of years in the past or future. The sky can be viewed from any place on Earth, or from any object in the solar system or beyond it. And, SkyChart III supports a number of popular computer-controlled telescopes and digital encoders, allowing you to enjoy the benefits of computer aided observing.
  • License: Demo, $50
  • Developer/Publisher: Southern Stars Systems
  • Modification Date: February 16, 2004
  • Requirements: Mac OS X 10.2 or higher and Mac OS 8.6 or higher


OS X PPC File Size: 5.9 MB - Demo


Classic PPC File Size: 4.9 MB - Demo

Updates Page

Home Page

Icon Solscape 2.6

Solscape is a "Solar Data Browser" application that grabs real time, up to the minute images of the Sun in multiple light wavelengths. Solscape also monitors current Solar flare activity, Earth view satellite images, Solar geomagnetic activity, and Aurora activity. Solscape gets all of its information via the Internet and compiles it in a single, easy to use application. You can save and archive the data that Solscape collects for later use, and you can tell Solscape to automatically grab the data when you want.
  • License: Freeware
  • Developer/Publisher: John Schilling
  • Modification Date: October 30, 2008
  • Requirements: Mac OS X 10.3 or higher

Home Page

Icon StarGazer's Delight 6.3

Stargazer's Delight shows you:
all the stars visible to the unaided eye
the sky, seen from any location on earth
planets, minor planets, galaxies, star clusters etc.
all constellations and their boundaries, the phases of the moon, the
apparent brightness of the planets, the length of day...
the paths of the planets, animations of the sky, great pictures of the planets etc.
animated tutorials on selected astronomical questions and much more !
  • License: Shareware, $30
  • Developer/Publisher: Ruedi Schmid
  • Modification Date: June 6, 2003
  • Requirements: Mac OS X and Mac OS 8.6 or higher


Classic PPCOS X PPC File Size: 4.5 MB

Home Page

Icon Starry Night 6.2.3

You can see the stars and planets as they appear from your own backyard, from a country on the other side of the world or from the Moon. You can watch as the Sun sets from the surface of Mars. Perhaps you would like to take a trip to Saturn, there, you may glide through its rings as it lumbers by in its slow methodical orbit. Witness a total eclipse of the Sun as seen from the Moon. Set time flowing at whatever pace you wish. Your only limit is your curiosity.
  • License: Updates, Complete $50, Enthusiast $80, Pro $150. Pro Plus $250
  • Developer/Publisher: Imaginova Corp.
  • Modification Date: February 29, 2008
  • Requirements: Mac OS X 10.3.9 or higher

Home Page

Icon Stellarium 0.10.2

Stellarium is free GPL software which renders realistic skies in real time with openGL. It is available for Linux/Unix, Windows and MacOSX. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.
  • License: Freeware
  • Developer/Publisher: Stellarium Project
  • Modification Date: March 10, 2009
  • Requirements: Mac OS X 10.2 or higher

Home Page

Icon Voyager 4.0.2

Educators and astronomers have recognized Voyager as a powerful learning tool, and it has been adopted by many leading universities world-wide for instruction in astronomy. From mountain top observatories to backyard telescopes, it has become an indispensable tool for exploring the heavens. No other program offers the range of features, the ease of use, and the performance of Voyager. It is an astronomical adventure which will provide years of wonder and discovery.
Since Voyager's introduction in 1989, it has been a leading Macintosh astronomy program, evolving through five product updates, each offering new features and capabilities. While preserving the popular features of earlier versions, Voyager offers exciting new ways to experience the wonders of the night sky.
  • License: Demo, $160
  • Developer/Publisher: Carina Software
  • Modification Date: April 1, 2006
  • Requirements: Mac OS X 10.2 or higher


Universal Binary File Size: 52.1 MB


Download PPC File Size: 12.0 MB - Voyager III Demo

Home Page

Icon Where is M13? 2.3

Where is M13? is a revolutionary new astronomy application that helps you visualize the 3-D locations and physical properties of common deep sky objects. This perspective is rarely discussed in astronomy books and software products on the market, which focus mainly on an object's apparent data such as its look, visual magnitude, apparent size, right ascension and declination. Where is M13? aims to address this important need.
  • License: Freeware
  • Developer/Publisher: Think Astronomy
  • Modification Date: July 27, 2008
  • Requirements: Mac OS X 10.3 or higher

Home Page

Intel Denotes Mac OS X Intel Native
Universal Binary Denotes Mac OS X Intel & PPC Native
OS X PPC Denotes Mac OS X PPC Native
Classic PPC Denotes Mac OS 8/9 PPC Native
680x0 Denotes Mac OS 680x0 Native
Non-Specific Code Denotes Non-OS Specific Code

Back to the Main Page of Pure Mac