Sedna is catalogued in this registry as a dwarf, held in the frame of Sol, from Solar system (curated).
Registry id SEDNA ·
source layer solar ·
provenance RAW — read directly from a source catalogue, unaltered
Open Sedna 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.
The registry keeps every source's value rather than choosing one and discarding the rest. If you quote a figure below, quoting it alone would hide a real disagreement between catalogues.
tagged.radius: the registry shows one value and keeps 1 other — 520000 (GCAT worlds)| Quantity | Value | Uncertainty | Source |
|---|---|---|---|
| Radius | 497500 m (497.5 km) | ± 40000 m (40 km) (1σ) | Solar system (curated) ⚖ 1 source disagree — 520000 m (GCAT worlds) |
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.
These are the sourced elements. This page does not print a position: a position is a function of time, and a single one dated to the bake would be stale the moment it was read. The registry composes a position for any date, past or future, from these elements — open the scene below and set the clock.
| Quantity | Value | Uncertainty | Source |
|---|---|---|---|
| Semi-major axis | 8.1339283781447×10^13 m (543.7195289 au) | no published uncertainty in this registry | Solar system (curated) |
| Eccentricity | 0.8598825 | no published uncertainty in this registry | Solar system (curated) |
| Inclination | 0.208135 rad (11.9253°) | no published uncertainty in this registry | Solar system (curated) |
| Longitude of ascending node | 2.522108 rad (144.5061°) | no published uncertainty in this registry | Solar system (curated) |
| Argument of periapsis | 5.429698 rad (311.0988°) | no published uncertainty in this registry | Solar system (curated) |
| Mean anomaly at epoch | 6.258675 rad (358.5957°) | no published uncertainty in this registry | Solar system (curated) |
Elements are expressed in the frame of
SOL at epoch
2026-06-09 00:00:00 UTC (JD 2461200.5). Gravitational parameter of the primary:
1.3271244×10^20 m³/s². Semi-major axis in astronomical units uses the
IAU 2012 definition (1 au = 1.495978707×10^11 m exactly).
| Kind | dwarf |
|---|---|
| Origin | natural |
a/e/i/Ω/ω/M osculating [JPL SBDB, full precision], carried AT THEIR OWN EPOCH (JD 2461200.5) rather than re-labelled J2000; two-body propagation, planetary perturbations not modelled. Dwarf-planet candidate (not IAU-designated). Diameter 995 ± 80 km [Pál et al. 2012]; mass unmeasured.
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 | Solar system (curated) |
|---|---|
| Authority | Standish 1992 mean elements; JPL SSD satellites; IAU spin data |
| Licence | Public ephemerides; textures CC BY 4.0 (Solar System Scope) |
| How it entered | Curated data-as-code (src/ingest/catalogs/solar.ts) |
| Coverage | Sol + 8 planets + 7 dwarfs/asteroids + 22 major moons, rings, spin axes |
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.