Top KStars Alternatives for Your Desktop Planetarium Needs
KStars is a Desktop Planetarium for KDE, renowned for its accurate graphical simulation of the night sky, displaying millions of stars, thousands of deep-sky objects, planets, the Sun, Moon, and countless comets and asteroids. While KStars is a powerful tool, users often seek KStars alternatives for various reasons, including different platform compatibility, specific feature sets, or simply exploring other options in the vast world of astronomical software.
Best KStars Alternatives
Whether you're an amateur astronomer, a seasoned sky-gazer, or just curious about the cosmos, there's a KStars alternative out there for you. Here's a curated list of top-notch planetarium and astronomy software that can fulfill your celestial exploration desires.

Google Earth
Google Earth allows you to fly anywhere on Earth to view satellite imagery, maps, terrain, and 3D buildings, extending its reach from galaxies in outer space to the ocean's canyons. It's available as Free Personal software for Mac, Windows, Linux, Web, Android, iPhone, Android Tablet, BSD, and iPad, offering features like Google Drive integration and Street panning and viewing, making it a versatile exploration tool beyond just a planetarium.

Stellarium
Stellarium is a fantastic free and open-source KStars alternative, providing a realistic 3D sky view just like what you'd see with the naked eye, binoculars, or a telescope. It's available for Mac, Windows, Linux, and PortableApps.com, and boasts features like 3D animation and educational content, making it a highly recommended choice for a detailed sky simulation.

Sky Map
Sky Map (formerly Google Sky Map) transforms your Android device into a window on the night sky. This free and open-source KStars alternative utilizes augmented reality, allowing you to point your phone at the sky and instantly identify what you're looking at, making stargazing incredibly intuitive for Android users.

Gaia Sky
Gaia Sky is a 3D visualization software, free and open-source, designed for ESA's Gaia mission, which charts about 1 billion stars of the Milky Way Galaxy. Available for Mac, Windows, and Linux, it offers features like notifications, 3D animation, education, and simulation, providing a deep dive into stellar data.

Solar System Scope
Solar System Scope offers a beautiful 3D simulation of the Solar System and night sky, acting as a real-time virtual orrery and observatory. This freemium KStars alternative is available on Mac, Windows, Web, Android, iPhone, Android Tablet, and iPad, featuring multiple languages and the ability to work offline, perfect for exploring the immediate cosmic neighborhood.

Cartes du Ciel (Skychart)
Cartes du Ciel (Skychart) is a free and open-source program that allows you to draw sky charts using data from 16 catalogs of stars and nebulae, along with the positions of planets, asteroids, and comets. It's a robust KStars alternative for Mac, Windows, and Linux users who need detailed chart creation.

SkyView
SkyView is a powerful and user-friendly freemium app that answers questions about stars, constellations, and more. Available for Android, iPhone, Android Tablet, iPad, Apple Watch, and Kindle Fire, it offers augmented reality and educational features by simply pointing your camera at the sky to discover celestial objects.

Star Chart
Star Chart is a commercial KStars alternative that offers a virtual window into the entire visible universe through your device's eyes. Utilizing state-of-the-art GPS, it's available on Mac, Windows, Android, iPhone, Windows RT, Android Tablet, Windows Phone, iPad, Kindle Fire, and Steam. It stands out with augmented reality, Oculus Rift support, and virtual reality features.

Sky Guide
Sky Guide is a beautiful and easy-to-use commercial KStars alternative for iPhone, iPad, and Apple Watch. It allows you to experience the wonders of the night sky with features like Night mode/Dark Theme, making celestial viewing stunning and accessible.

StarCalc
StarCalc is a fast, free, and professional astronomy planetarium and star mapping program for Windows 9x/ME/NT/2000/XP, with a version available for PocketPC. This Windows-specific KStars alternative provides robust functionality for users seeking a dedicated desktop solution.
With such a diverse range of KStars alternatives available, from mobile augmented reality apps to desktop planetariums and comprehensive star-charting software, you're sure to find the perfect tool to explore the night sky. Consider your platform, desired features, and budget to select the best fit for your astronomical adventures.