Astronomical objects discovered in 1904

550 Senta is a minor planet orbiting the Sun that was discovered by German astronomer Max Wolf on 16 November 1904, from Heidelberg.

544 Jetta is a minor planet orbiting the Sun. It is estimated to be 24 km in diameter.

537 Pauly is a minor planet orbiting the Sun.

529 Preziosa is a minor planet orbiting the Sun that was discovered by German astronomer Max Wolf on 20 March 1904 from Heidelberg.

528 Rezia is a minor planet orbiting the Sun. It was discovered by Max Wolf on March 20, 1904. It is named for a character in the 1826 opera Oberon by Carl Maria von Weber. Among the 248 discoveries by Wolf, he also discovered 527 Euryanthe and 529 Preziosa on the same day.

527 Euryanthe is a minor planet orbiting the Sun. It was discovered in 1904 by Max Wolf and named after the heroine of the opera Euryanthe by the German composer Carl Maria von Weber.

526 Jena is a Themistian asteroid. It was discovered in Heidelberg by the German astronomer Max Wolf on 14 March 1904 and named after the city of Jena.

Comet Borrelly or Borrelly's Comet (official designation: 19P/Borrelly) is a comet with a period of 6.85 years that was visited by the spacecraft Deep Space 1 in 2001. The comet last came to perihelion (closest approach to the Sun) on February 1, 2022 and will next come to perihelion on December 11, 2028.

IC 4687 known as IRAS 18093-5744 or F18093-5744, is an Sb spiral galaxy located in the constellation of Pavo. It is located 250 million light years from Earth and was discovered by Royal Harwood Frost on August 1, 1904, who described the object "as brighter middle with magnitude of 14. It has a surface brightness of 12.5.

IC 4182 is a Magellanic spiral galaxy in the constellation Canes Venatici. The galaxy lies about 14 million light years away from Earth, which means, given its apparent dimensions, that IC 4182 is approximately 28,000 light years across. It was discovered by German astronomer Max Wolf on 21 March 1903.