archive / atlas record
Orion Nebula
A nearby stellar nursery visible to the unaided eye.
- classification
- Emission nebula / star-forming region
- system
- Orion Molecular Cloud
The Orion Nebula is a region where gas and dust are forming new stars, illuminated and shaped by young massive stars within it.
- Class
- Emission nebula / star-forming region
- Location / system
- Orion Molecular Cloud
- Distance
- About 1,300 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 Orion Nebula is a region where gas and dust are forming new stars, illuminated and shaped by young massive stars within it.
Multiwavelength imaging and spectroscopy
Orion Nebula is mapped in selected wavelengths. Spectral lines trace composition, ionisation and motion; inferred distance and three-dimensional structure remain measurement-dependent.
- What remains least constrained about Orion Nebula?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