Browse the register

3,919,196 objects in the register

Beyond the Solar System

Identity and type come from SIMBAD; measurements from the published literature it indexes, from Gaia DR3 and from NED.

Star 1,437,976 · 17,313 deepened Quasar 448,668 · 19,679 deepened Galaxy 289,494 · 13,515 deepened Agn 105,052 · 4,600 deepened Source 22,548 · 785 deepened Nebula 13,754 · 325 deepened Galaxy group 10,377 · 586 deepened Cluster 10,282 · 855 deepened Transient 8,545 · 329 deepened Gravitation 1,519 · 392 deepened Other 965 · 84 deepened Association 868 · 120 deepened

The Solar System

Orbits and physical parameters from the JPL Small-Body Database; the major bodies from Horizons.

Asteroid 1,556,250 · 150 deepened Comet 4,076 · 104 deepened Moon 187 · 187 deepened Dwarf planet 9 · 9 deepened Planet 8 · 8 deepened Star 1 · 1 deepened

Exoplanets

The NASA Exoplanet Archive, including every published parameter set behind each confirmed planet.

Exoplanet 8,617 · 327 deepened

A class listing shows what the register currently holds, not everything that exists. Objects arrive as they are asked for — search a designation the register has never seen and it will go and get it.