Astronomical objects discovered in 1938

1521 Seinäjoki, provisional designation is a Brasilia asteroid from the outer region of the asteroid belt, approximately 14 kilometers in diameter. It was discovered on 22 October 1938, by Finnish astronomer Yrjö Väisälä at the southwestern Turku Observatory, Finland. The asteroid was later named after the Finnish city of Seinäjoki.

1493 Sigrid, provisional designation 1938 QB, is a dark Nysian asteroid from the inner regions of the asteroid belt, approximately 24 kilometers in diameter. It was discovered on 26 August 1938, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. It was named after Sigrid Strömgren, wife of astronomer Bengt Strömgren.

1444 Pannonia (prov. designation: 1938 AE) is a carbonaceous background asteroid from the outer region of the asteroid belt, approximately 29 kilometers (18 miles) in diameter. It was discovered on 6 January 1938, by Hungarian astronomer György Kulin at Konkoly Observatory in Budapest, Hungary. It was named after the ancient province of the Roman Empire, Pannonia.

1486 Marilyn, provisional designation 1938 QA, is a stony background asteroid from the inner regions of the asteroid belt, approximately 6.5 kilometers in diameter. It was discovered on 23 August 1938, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The asteroid was named after Marilyn Herget, daughter of astronomer Paul Herget.

1508 Kemi, provisional designation 1938 UP, is an eccentric, carbonaceous asteroid and one of the largest Mars-crossers, approximately 17 kilometers in diameter. Discovered by Heikki Alikoski at Turku Observatory in 1938, the asteroid was later named after the Finnish town of Kemi and the Kemi River.

2016 Heinemann, provisional designation 1938 SE, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 22 kilometers in diameter. It was discovered on 18 September 1938, by German astronomer Alfred Bohrmann at Heidelberg Observatory in southwest Germany, and later named after ARI-astronomer Karl Heinemann (1898–1970).

1470 Carla, provisional designation 1938 SD, is a carbonaceous asteroid from the outer regions of the asteroid belt, approximately 35 kilometers in diameter.

Lysithea is a prograde irregular satellite of Jupiter. It was discovered by Seth Barnes Nicholson in 1938 at Mount Wilson Observatory and is named after the mythological Lysithea, daughter of Oceanus and one of Zeus' lovers.

The Fornax Dwarf Spheroidal (formerly known as the Fornax System) is a dwarf elliptical galaxy in the constellation Fornax that was discovered in 1938 by Harlow Shapley. He discovered it while he was in South Africa on photographic plates taken by the 24 inch (61 cm) Bruce refractor at Boyden Observatory, shortly after he discovered the Sculptor Dwarf Galaxy.

3212 Agricola, provisional designation is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 5 km (3.1 miles) in diameter. It was discovered by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland, on 19 February 1938, and named after reformer Mikael Agricola.