12148 Caravaggio (provisional designation 1990 WS12) is a binary main-belt asteroid discovered in 1990 by C. J. van Houten, I. van Houten-Groeneveld, and T. Gehrels, and was identified as a binary in 2026 by J.-F. Gout, D. Herald, D. Gault, C. Weber, and B. Anderson. It was discovered during the Palomar–Leiden survey at the Palomar Observatory.
Naming On Nov 28, 2010, the asteroid was named after Michelangelo Merisi da Caravaggio (1571–1610), an important Italian painter during the Renaissance. He was forgotted after his death, but his importance was rediscovered because of his influence on the Baroque style.
Satellite On January 27, 2026, a stellar occultation observed from Starkville, Mississippi revealed a companion to this system, and was announced on April 6, 2026. As of July 2026, this companion is unnamed.
This companion is about 1.85 km in diameter, and orbits Caravaggio in 8.3 days, with an estimated separation of 73.9 km.
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