Stellarium is a Home & Education software developed by Stellarium. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Stellarium:

EditByMarydown: Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked Eye, binoculars or a telescope.
It is being used in planetarium projectors. Just set your coordinates and go.

Its main features include:
Over 120000 stars, all of which are named and explained
Realtime planets with powerful zoom mode
88 constellations
Photorealistic Milky Way
Ground, fog, and landscape
Graphical menu for ease of use
Clickable stars, planets and nebulae with information
Ecliptic and celestrial equator lines
Smooth real time navigation
Windowed and fullScreen modes

This is an absolute must for astrology lovers. It is an attractive, visual application that will help you learn more about planets and stars.

What's new in
This is a bug fix release. We closed more 30 bugs in the main application and in the plugins
and also small improvements of GUI. A huge thanks to all community bug reporters who helped
us a lot finding bugs!

Change Log

Added:
- ecliptic grid
- world observatories to the locations list
- allow configuration of url for SIMBAD lookups
- opportunity to freely choose the object information to display
- Pluto texture

Fixed:
- No objects under horizon
- (MinGW-w64) CMake does not Detect Win64
- (MinGW-w64) Compilation errors
- Oculars FOV
- "Galactic Plane" string does not get translated when language is switched
- Use FreeDesktop specification for Unity quicklists
- Apparent diameter of planets with rings
- Crash [assert] when FOV is small and Quasars or Historical Supernovae plugins is enabled
- Angle Measure plug-in reads the wrong options from the configuration file
- Crash in debug mode on displaying constellation borders
- And more..