Triangulum Galaxy (M33)

Third-largest member of the Local Group, a gas-rich spiral galaxy with intense star-forming regions.

Core Principles & Analysis

• It contains NGC 604, one of the largest known star-forming regions, spanning roughly 1,500 light-years.
• Unlike most galaxies its size, its nucleus shows no evidence of a supermassive black hole.
• A stream of hydrogen gas linking it to Andromeda suggests the two galaxies interacted in the past.

Specifications & Metrics

• GALAXY TYPE: Spiral (SA(s)cd)
• DISTANCE: 2.73 million light-years
• DIAMETER: ~61,100 light-years