Triangulum Galaxy (M33)
The third member of our Local Group
The third-largest galaxy in the Local Group after Andromeda and the Milky Way. M33 is a face-on spiral with intense star-forming regions and may be a satellite of Andromeda.
Image: ESO
Vital statistics
Type
Spiral (Sc)
Distance
~2.73 million light-years
Diameter
~60,000 light-years
Stars
~40 billion
Constellation
Triangulum
Did you know
Visible to the naked eye under exceptionally dark skies.
Fact 01
Hosts NGC 604, one of the largest known star-forming regions.
Fact 02
Likely bound gravitationally to Andromeda.
Fact 03
Research & publications
Jump straight into peer-reviewed papers, preprints and authoritative references for Triangulum Galaxy (M33).
arXiv (preprints)
Open-access preprints in physics & astrophysics.
NASA ADS
The definitive bibliographic database for astronomy.
Google Scholar
Cross-publisher academic search.
Nature
Peer-reviewed articles in Nature & sister journals.
Wikipedia
Encyclopedic overview & onward references.
Tip: ask the Research AI for a curated reading list → /research
