It was discovered in 1990 by R.J. Lavery of Mount Stromlo Observatory.

Its location on the opposite side of the Milky Way from other Local Group galaxies makes it an important object for study.

[3] It is not experiencing any current star formation, unlike other isolated dwarf galaxies.

[4] The Tucana Dwarf does not contain very much neutral hydrogen gas.

It is about 870 kiloparsecs (2,800 kly) away,[6] on the opposite side of the Milky Way galaxy to most of the other Local Group galaxies and is therefore important for understanding the kinematics and formation history of the Local Group,[2] as well as the role of environment in determining how dwarf galaxies evolve.