Tucana IV

Tucana IV is an ultra-faint dwarf galaxy that is a satellite to the Milky Way galaxy. It lies at a distance of 48 kiloparsecs in the constellation of Tucana. It has a size of 127 parsecs.^[1]

Tucana IV
Observation data
Constellation	Tucana
Distance	156,555 ly
Group or cluster	Milky Way subgroup
Characteristics
Type	Dwarf galaxy
Notable features	Close pass of the LMC

It passed within 4 kiloparsecs (possibly a collision event) with the Large Magellanic Cloud (LMC) approximately 120 million years ago. This close passage of the LMC altered the trajectory of the galaxy and its internal kinematics.^[2]