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Equinox Pro is a powerful planetarium program has many features for both the beginner and advanced astronomer. It has filters for organizing deep sky objects, many controls to adjust the sky display and a window that simulates a telescope's view. Build a tour, connect to your telescope and slew from object to object with voice commands.

What's New

Version 7.2.1:
  • Fixed scope protocol bug.


OS X 10.7 or later

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Equinox Pro User Discussion

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Kepler Member IconReview+1

I am an experienced amateur astronomer with a large alt/az scope, and an award-winning astronomy site: astronomy-links.net. I have used Equinox software since version 2.0. I have not yet found any other software better than this one for my purposes, though I admit there are more "entertaining" programs for people who like to look at software images of the heavens. I used Equinox for MANUALLY finding all of the Messier and Caldwell objects, among many others. It has never failed me. I also have an image from the western sky as seen by the three wise men near Babylon when the Star of Bethlehem nova emerged (see: http://astronomy-links.net/StarofBethlehem.html). The programmer has a large private observatory, and he also does the work that gives you the free Clear Sky clocks (see cleardarksky.com). Yes, I think what you get is a very good deal for sixty bucks.

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Version 7.1.1
Tlaloc Member IconReview+1

I wanted to use an astronomy program to check a Maya calendar inscription in the distant past. This program can only accept dates as far back as the start of the Gregorian calendar in 1582. Older dates have to be entered as Julian day numbers and the resulting date display is meaningless. For what I wanted this app is useless. A big advantage of the Mac platform is that the GUI in all applications (including the finder) is consistent. When the developers invent their own creative GUIs like the one in this application, users are confused and frustrated.

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Version 7.0.3
DetlefS Member IconComment+4

Doesn't start when using a regular user account. I never would pay $50 for a software so poorely developed...

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Version 6.10.5
Dominikhoffmann Member IconReview+7

This program appears to require the user to have administrative privileges to run it.

My benchmark test is to go to the date April 17, 6 B.C., to see, whether the software correctly shows a lunar occulatation of Jupiter near Aries. Also, I want to change the view to that seen from Babylon at that time.

Compared to Stellarium, it was much more difficult and not immediately obvious how to accomplish these. The date display did not distinguish between A.D. and B.C., the difference being apparent only from the fact that going backwards in time caused the year to increment. It was also not easy to simply enter the date.

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Version 6.10.5
Sebehk Member IconComment+45

Both Celestia and Stellarium are free, and offer basically the same features as Equinox.

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Version 6.7
Ronald Price

I'm not 100% certain but I don't think either Celestia or Stellarium can control the nice Meade telescope I got for Christmas. To be fair, I'm not 100% certain Equinox will either as I have not actually tried this claimed functionality yet, but at least this is a listed feature. Now that the weather is nice (and my work schedule has become less debilitating) I plan to see what Equinox can do.

Don't get me wrong, Celestia and Stellarium are fine for what they do but they solve different problems than Equinox.

Splunk23 Member IconComment+0

I'm curious how this is different from the free "Celestia." Is it worth the $50?


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Version 6.6
Yoyomoymoy Member Icon+0

Excellent piece of software. As a newcomer to stars observation I really enjoy it.

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Version 2.0
Thomas McGrath III Member Icon+0
Thomas McGrath III

All I can say is that I love this program. I set up voice control for Telescope view and Solar System view, etc. and most impressive was voice control for Night Vision Mode which impressed me and really impresses friends as my screen turns red on command. I own Starynight Backyard and I like it but the Telescope control in Starynight is a bit rough compared to MPJ Equinox. What a great product and well worth the $29.00 . Thank you MPj.

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Version 2.0
user icon+5
Version 7.0.0
user icon+23
Version 6.15.1
> 4 5


Current Version (7.x)


Downloads 22,658
Version Downloads 175
License Demo
Date 21 Apr 2014
Platform OS X / Intel 32
Price $49.95
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