Holographic Cosmos

From the Solar System to the galaxy in holographic 3D. Tap any object for data and pinch to zoom. Works offline, with no sign-up and no ads.

Explore the universe beyond tonight's sky with your fingertips.

Holographic Cosmos is a 3D atlas that links the Milky Way, the Solar System, exoplanet systems and the Local Group into one map. Tap an object to bring it to the center and open its data; tap "View details" beside a name to step inside.

● Simple touch controls Drag with one finger to rotate, pinch with two fingers to zoom, and swipe with two fingers side by side to move your view. Tap outside an info panel to close it.

● Today's real Solar System From Mercury to Neptune, everything starts at its real position for today's date and moves in real time at its real orbital and rotation periods (sidereal days). Earth's day/night line and the Moon's phase match today too. Speeds run 2X to 128X with pause. Every planet carries a hologram grid and day/night shading toward the real Sun.

● Planets, moons and Lagrange points See 8 planets, dwarf planet Pluto and 18 moons at true distance and size ratios. The Sun–Earth and Sun–Jupiter Lagrange points (L1–L5) and Trojan regions are marked. Tap any body for its orbital period, rotation period and size.

● Around Earth Look around the International Space Station, the Starlink swarm, the James Webb Space Telescope at the Sun–Earth L2 point (about 3.9 times farther than the Moon), and the Starbase launch site in Texas with a Starship model. Positions are estimates computed from orbital elements and coordinates, not live tracking, and models are drawn oversized so they are visible.

● Beyond the Solar System Zoom step by step out to Proxima Centauri, the planets of TRAPPIST-1 and the Local Group with the Magellanic Clouds and Andromeda. Nearby stars such as Sirius appear in their real directions. Meet Sgr A*, the supermassive black hole at the galactic center.

● Categories and search Browse 12 categories — clusters, nebulae, galaxies, star systems, planets, moons, satellites, space stations, telescopes and more — or search by name and jump straight there.

● Constellations and nebulae Visit 10 constellations placed at real coordinates and 12 nebulae and clusters (Orion Nebula, Eagle Nebula, Crab Nebula, the Pleiades and more).

● No internet needed, no personal data collected All data lives inside the app, so it works in airplane mode. No ads, no sign-up. A gentle ambient space sound (synthesized, not music) can be switched on and off with the SND button.

● English and 한국어 Switch the language with the KO / EN button at the top of the screen.

Note: this app is for education and visualization. Sizes, distances and positions of celestial objects are approximations for learning and cannot be used for navigation or observation planning. One fictional station is included and is marked as fictional. The star background and nebula colors are procedurally generated. Names of agencies and companies mentioned belong to their owners; this app is not affiliated with any agency or company.