15P may refer to: *

15P/Finlay Comet Finlay is a periodic comet with an orbital period of 6 years discovered by William Henry Finlay ( Royal Observatory, Cape of Good Hope, South Africa) on September 26, 1886. The next perihelion passage is July 13, 2021 when the comet will h ...

, a comet *

SpaceShipOne flight 15P Flight 15P of SpaceShipOne (X0) was the first privately funded human spaceflight. It took place on June 21, 2004. It was the fourth powered test flight of the Tier One program, the previous three test flights having reached much lower altitudes ...

, a commercial spaceflight *

Phosphorus Phosphorus is a chemical element with the symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Ear ...

(₁₅P), a chemical element

See also