archive / atlas record
Triangulum Galaxy
A smaller spiral member of the Local Group.
- classification
- Spiral galaxy
- system
- Local Group
The Triangulum Galaxy is the Local Group's third-largest spiral and hosts extensive regions of recent star formation.
- Class
- Spiral galaxy
- Location / system
- Local Group
- Distance
- About 2.7 million light-years from Earth
Only values with an established scientific consensus are listed. Where a quantity is uncertain or model-dependent, it is discussed in the sections below rather than stated as data.
Overview (starter entry, expanded review pending)
The Triangulum Galaxy is the Local Group's third-largest spiral and hosts extensive regions of recent star formation.
Imaging, redshift and distance indicators
Triangulum Galaxy's morphology is mapped across wavelengths; spectra establish motion and composition, while distance estimates use calibrated indicators appropriate to its range.
- What remains least constrained about Triangulum Galaxy?Composition, internal structure, formation history or local environment can require different observations and may remain model-dependent.
Items above are unresolved. Hypotheses are labelled as such and are not presented as confirmed findings.
NASA/IPAC // verified 28 September 2026
CDS Strasbourg // verified 28 September 2026