HUBBLE ATLAS
Farthest, Faintest Solar System Objects Found Beyond Neptune (2000 FV530, 2003 BF91, 2003 BG91, 2003 BH91) — image from the Hubble Space Telescope

Solar System

Farthest, Faintest Solar System Objects Found Beyond Neptune

September 6, 2003 · ESA/Hubble · 2000 FV530, 2003 BF91, 2003 BG91, 2003 BH91

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Astronomers using NASA's Hubble Space Telescope have discovered three of the faintest and smallest objects ever detected beyond Neptune. Each object is a lump of ice and rock — roughly the size of Philadelphia.