 | |
| Developer(s) | Google Carnegie Mellon University |
|---|---|
| Stable release | 1.9.2 [1] / 1 October 2016; 17 July 2020 |
| Repository | |
| Operating system | Android |
| Type | Planetarium software |
| License | Apache License, Version 2.0 |
| Website | github |
Sky Map is an Android planetarium software application. [2] [3]
Sky Map was designed and developed by a group of Google engineers in Pittsburgh, Pennsylvania as part of their 20% time. [4]
It's now "donated and open-sourced".
On January 20, 2012, Google announced a student development partnership with Carnegie Mellon University and released Sky Map under the Apache 2.0 open source license. [5]
The project is presently available in the form of a GitHub repository. [6]
KStars is a free and open-source planetarium program built using the KDE Frameworks. It is available for Linux, BSD, macOS, and Microsoft Windows. A light version of KStars is available for Android devices. It provides an accurate graphical representation of the night sky, from any location on Earth, at any date and time. The display includes up to 100 million stars, 13,000 deep sky objects, constellations from different cultures, all 8 planets, the Sun and Moon, and thousands of comets, asteroids, satellites, and supernovae. It has features to appeal to users of all levels, from informative hypertext articles about astronomy, to robust control of telescopes and CCD cameras, and logging of observations of specific objects.
Celestia is a real-time 3D astronomy software program that was created in 2001 by Chris Laurel. The program allows users to virtually travel through the universe and explore celestial objects that have been catalogued. Celestia also doubles as a planetarium, but the user is not restricted to the Earth's surface, like in other planetarium software such as Stellarium. Celestia can display objects of various scales using OpenGL.
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This article contains a list with gratis satellite navigation software for a range of devices. Some of the free software mentioned here does not have detailed maps or the ability to follow streets or type in street names. However, in many cases, it is also that which makes the program free, avoid the need of an Internet connection, and make it very lightweight. Very basic programs like this may not be suitable for road navigation in cars, but serve their purpose for navigation while walking or trekking, and for use at sea. To determine the GPS coordinates of a destination, one can use sites such as GPScoordinates.eu and GPS visualizer.
Maps.me is a mobile app for Android, iOS and BlackBerry that provides offline maps using OpenStreetMap data. It was formerly known as MapsWithMe. In November 2014, it was acquired by Mail.Ru Group and became part of its My.com brand. In September 2015, the app was open sourced and a free and open-source software version was additionally made available on F-droid until the application was sold to the payment processor Daegu Limited, part of Parity.com, which changed the application user interface and content, leading original MapsWithMe founders Alexander Borsuk and Viktor Govako to release an open source ad- and tracker-free fork called 'Organic Maps' in response.
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Conversations is a free software, instant messaging client application software for Android. It is largely based on recognized open standards such as the Extensible Messaging and Presence Protocol (XMPP) and Transport Layer Security (TLS).
