Stellarium 25.4


519 MB
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Product Information

File Name Stellarium
Developer John T. Haller
Version 25.4
Release Date Jan 04, 2026
License Full Version
Languages Windows 11/10/8.1/7
519 MB
Rate Me
Direct Download

Product Information

File Name Stellarium
Developer John T. Haller
Version 25.4
Release Date Jan 04, 2026
License Full Version
Languages Windows 11/10/8.1/7

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Stellarium is a desktop planetarium that displays a realistic 3D image of the starry sky in real-time. The application with the highest degree of realism reproduces images that we can see with the naked eye, as well as through the lens of binoculars or a small telescope.

OVERVIEW OF STELLARIUM

Stellarium is a comprehensive utility that helps users explore planets and constellations in a 3D environment. This open-source planetarium gives you details on celestial objects, simulates solar and lunar eclipses, and displays Messier objects and the Milky Way.

Portable Stellarium, just like its installation counterpart, is a truly innovative application. This application can explain to any individual how the star formation looks to us from our weak perspective, and at the same time shows how these star conglomerations are given names. It is easy to use and affordable. It’s a great school and learning material, and what’s more, now that you’ve installed it on tons of machines, it won’t be a problem anymore. The app’s light factor is enhanced by said portability as it was already quite simple for PC components.

The program has a fairly modern interface. It will go into full-screen mode as soon as you launch the app. There won’t be any hiccups or glitches as the program seems to be quite well-developed. Dedication is certainly something that the developers of this application did not lack. The program menus are clear. You can choose to enjoy many types of simulations if you can call them that. You can choose from lenses, sensors, and even telescopes. It’s as if you own every possible stargazing gadget when you run this app from your USB drive.

The point of Portable Stellarium is that if you love stars, space, and the general arrangement of celestial bodies in the sky, this program can adapt to what you’re used to and even teach you a few new tricks and facts.

FEATURES OF STELLARIUM

SKY DATABASE

Stellarium has a default catalog of over 600,000 stars, expandable to over 220 million stars with additional catalogs such as Gaia DR2, and over 80,000 deep sky objects, including nebulae, galaxies, and clusters, and expandable to over 1 million. This includes star maps, over 40 cultural constellations, a realistic Milky Way map, all 8 planets with their satellites, major asteroids, comets, supernovae, and the full Messier and NGC catalogs with high-resolution nebula images. This extensive database supports detailed 6D constellations of bright stars, binary star motion simulations, and dynamic elements such as shooting stars and comet tails, allowing you to create detailed renderings of the sky from any location on Earth or at any time.

INTERFACE CONTROLS

The software features a powerful zoom for detailed views from wide-angle skies to nearby planetary surfaces, easy time controls to fast-forward, rewind, or jump to any date, and a multilingual graphical interface with extensive keyboard shortcuts. Additional controls include fisheye and spherical mirror projections for planetary domes, an HTTP-based remote control API, scripts for automated scenarios, and integration with telescope controls for real-world orientation. Users can easily change the coordinate grid, precession circle, and display mode.

IMAGE EFFECTS

Realistic atmospheric simulations capture sunrises, sunsets, light pollution, fog, and starbursts, and display eclipse predictions, exoplanet locations, and simulated eye views through a telescope or telescope. It offers all-sky exploration, including 3D views, spherical panoramas with scannable landscape skins, star art layers, and DSS or HiPS for photorealistic deep space imagery. Dynamic events such as shooting stars, comet tails, and novenas enhance the immersion, while a cultural calendar of 35+ traditions adds depth to the learning experience.

CUSTOMIZATION OPTIONS

A robust plugin system extends functionality with artificial satellites such as the ISS, advanced eye simulations, and custom telescope guides. Users can add their own deep sky objects, landscapes, constellation images, or solar system data from online sources, and full support for scripting custom tours and scenarios. The settings menu allows you to save default settings for location, viewing angle, pollution level, and object depth information, ensuring a consistent experience across desktop, mobile, web, and VR.

SYSTEM REQUIREMENTS

  • Supported OS: Windows 11/10/8.1/7
  • Memory (RAM): 1 GB of RAM or more is required
  • Hard Disk Space: 100 MB or more required

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