Welcome to SpaceReference.org. The purpose of this site is to catalog and showcase every known object in space. We've started with asteroids and comets but this open-source project is being quickly expanded.
SpaceDB compiles data from the NASA/JPL Small Body Database, the IAU Minor Planet Center, and the NASA/JPL Center for Near Earth Object Studies.
If you'd like to create a customized solar system model, take a look at the full-screen interactive solar system view.
We've organized hundreds of thousands celestial objects into these categories below for your perusal.
Mouseover objects in the lists below to highlight them in the orbit view. Click or tap to learn more about each object.
These are among the largest and earliest discovered asteroids in our solar system.
These objects have upcoming fly-bys of Earth.
These objects have the potential to impact Earth (listed by probability of impact).
It is relatively inexpensive to send a spacecraft to these objects in terms of propulsive cost (listed by delta-v).
These objects are named after notable people.
The categories below are orbital classifications as defined by NASA PDS: