Windows · Free download · General

C2A2.1.5

C2A : An incredibly powerful piece of software displaying a real time updating and customizable sky map with support for telescopes and various observation tools

Operating system
Windows 10/11
File size
41 MB
License
Freeware
Last updated
Apr 30, 2026

74 downloads·755 page views

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Overview

What is C2A?

C2A : An incredibly powerful piece of software displaying a real time updating and customizable sky map with support for telescopes and various observation tools

In depth

A closer look at C2A

Although for most individuals the sky is simply an area that's either the source of light in daytime and filled with wonder at night, there was a time when it served as a means of navigation. With powerful tools guided by computer applications, thorough sky maps and celestial body observations are done for both leisure and research. What's more, using specialized applications such as C2A it all becomes practical, efficient, and why not fun.

Suitable for amateurs and professionals alike

The application is not strictly targeting a specific public and can be used even by beginners, but with a little time spent accommodating due to the amount of features and complexity. On the other hand, if used in specialized environments such as planetariums, it becomes a powerful tool, with integrated components that enable you to connect a telescope via COM ports.

Customizable, real time updating sky map

Running the application brings up the interface with a simple design in terms of visuals, but filled with various components that are not difficult to understand. What's more, most of the space is taken up by the preview section which updates in real time if your computer is connected to the Internet.Enthusiasts most likely get to spend a significant amount of time analyzing all possibilities, with nearly every known celestial body displayed, along with several grids you can toggle and edit for better identification.

Equipped with powerful observation tools

Each item can be hidden or made visible at the press of a button. Observation is a plus, with thorough tools to set up, including location with fields for coordinates, as well as a list of predefined locations for easier setup. There's also a log book so you can write down any observations or upcoming events.

Connect and control a telescope

As mentioned above, the application comes equipped with support for telescopes you can connect via COM ports. Controller types let you choose from Native LX200, Skysensor 2000 PC, PicAstro, Celestron NexStar and a few others.In addition, you can play with a manual controller to point the telescope to a specific location, or simply mark a point on the star map in an attempt to have the telescope automatically focus it.

In conclusion

All things considered, beginners and enthusiasts can put this trustworthy application to good use for observations or research. The amount of features and tools C2A comes equipped with is staggering and can take some time to get familiar with. Needless to say that it is an incredibly powerful utility with a real time updating sky map and telescope support, making a test run become a sensational joyride.

Requirements

System requirements

Windows 10 64 bit / Windows 10 / Windows 8 / Windows 7 / Windows Vista / Windows XP

Verdict

Should you download C2A?

C2A runs on Windows 10/11 and is available under the Freeware license — the installer is 41 MB. We’ve catalogued it under General.

Verified clean. Every C2A build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
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At a glance

C2A specifications

Category
General
Publisher
Philippe Deverchère
Last updated
Apr 30, 2026
Requirements
Windows 10 64 bit / Windows 10 / Windows 8 / Windows 7 / Windows Vista / Windows XP
License
Freeware
Operating system
Windows 10/11
File size
41 MB
Price
Free
Page views
755

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