Tucana IV
Dwarf satellite galaxy in the Tucana constellation
From Wikipedia, the free encyclopedia
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]