Milky Way disc (structure map) is catalogued in this registry as a galaxy, held in the frame of Milky Way, from Local universe (curated).
Registry id MW_DISC ·
source layer local-universe ·
provenance VISUAL — a styling choice, not a measurement
Open Milky Way disc (structure map) in the live scene → The scene composes a position for any date and is where a figure becomes a picture. It downloads the whole catalogue first: measured against the built product, an object outside the core resolves after about 16 s over a local network and about 147 s over a 4 Mbit link, having transferred roughly 70 MB. If you cannot wait that long, this page is the answer.
| Quantity | Value | Uncertainty | Source |
|---|---|---|---|
| Radius | 4.62852×10^20 m (3.09397×10^9 au) | no published uncertainty in this registry | Local universe (curated) |
Each row carries its own uncertainty and its own source. Where a row says no uncertainty is published, that is what the catalogue says — it is not a claim that the value is exact.
| Kind | galaxy |
|---|---|
| Origin | natural |
NASA/JPL-Caltech R. Hurt structure concept (Spitzer-informed spiral map), public domain. The image plane is the galactic plane.
Reproduced as the source wrote it. Author-year citations link to their DOI where one is registered.
These are absences in the catalogues aggregated here, not measurements of zero, and not statements that the quantity is unknown to science:
| Database | Local universe (curated) |
|---|---|
| Authority | Gaia DR3 / Hipparcos parallaxes; NED distances; Planck 2018 dipole; RC3/NED disc orientations; IAU galactic frame per Hipparcos Vol 1 §1.5.3 |
| Licence | Public catalogs, per-record citations in notes |
| How it entered | Curated data-as-code (src/ingest/catalogs/local-universe.ts) |
| Coverage | CMB/LG/MW anchors (MW local axes = IAU galactic, orientation quaternion), named Local Group galaxies with observed disc PA+i, 10 nearest named stars in galactic coordinates |
This database remains the property of its owners and is reused under its own licence. If you quote a value from this page, name that database alongside SolarSystemRegistry.org.