Holdings

3,910,824 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 1,433,833 · 521 deepened Quasar 448,659 · 3 deepened Galaxy 285,795 · 21 deepened Agn 104,892 · 8 deepened Source 22,503 · 3 deepened Nebula 13,753 · 1 deepened Galaxy group 10,374 Cluster 10,280 Transient 8,295 · 2 deepened Gravitation 1,511 · 4 deepened Other 961 Association 862

The Solar System

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

Asteroid 1,556,250 · 7 deepened Comet 4,071 · 1 deepened Moon 187 · 187 deepened Dwarf planet 9 · 1 deepened Planet 8 · 8 deepened Star 1 · 1 deepened

Exoplanets

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

Exoplanet 8,580 · 4 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.