Space Time
Visit other solar systems
Browse 4,684 confirmed systems from the NASA Exoplanet Archive. Open one in 3D to inspect its orbits, compare it with our Solar System, and see how its planets were found.
🚀 Visit other star systems Free · 4,684 real systems · True orbits · Habitable zones
Every confirmed system, true orbits
Search more than 6,200 planets by host star or planet name, or filter for nearby stars, multi-planet systems, and planets in the habitable zone. Measured eccentricity is included when the archive provides it, so an elongated orbit appears that way in the model.
How we found it
The discovery view explains transit, radial velocity, direct imaging, and microlensing with an animation based on the planet's published parameters. If the host star is above your horizon tonight, Space Time also tells you where to look.
Compare to our Solar System
One tap drops our Solar System's orbits in at the same scale. TRAPPIST-1 is a good one to try first: all seven of its planets orbit closer to their star than Mercury does to ours, and seeing both systems drawn together makes that real.
FAQ
Which exoplanet systems can I explore?
The catalog contains 4,684 confirmed systems and more than 6,200 planets from the NASA Exoplanet Archive. It is searchable and filterable.
Are the orbits real?
Yes. Measured orbits with true eccentricities, driven by the same time controls as the Solar System.
What's the habitable zone?
The band around a star where liquid water could exist. It's shaded in each system, so you can see which planets fall inside.
Can I see how each planet was discovered?
Yes. "How we found it" explains transit, radial velocity, imaging, or microlensing with the planet's published parameters.
Can I compare to our Solar System?
Yes. A one-tap overlay drops our orbits in at the same scale.
Can I see a host star in my own sky?
Often. If it's above your horizon tonight, Space Time tells you where to look and how bright it is.
Is it free?
Yes. In your browser, no account, no download.