Plate III · The Catalogue of Stars Orrery Observatory · Annual Survey, 2024

The sky we thought we knew
holds a billion new names

1,811,719,234
Stars with precise celestial coordinates
15,300× more than the 20th century’s most complete survey

118,218 · Meridian Catalogue, 1997

Meridian · 1997
118,218 Aster DR3 · 2024
1,811,719,234
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