Pleiades (M45) is catalogued in this registry as a cluster, held in the frame of Milky Way, from Naked-eye deep-sky objects (curated).
Registry id DS_M45 ·
source layer deepsky ·
provenance PROCESSED — derived deterministically from source catalogues (unit, frame and epoch conversions, cross-source reconciliation) — no value invented
Open Pleiades (M45) 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 | 9.34154×10^16 m (624443 au) | no published uncertainty in this registry | Naked-eye deep-sky objects (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 | cluster |
|---|---|
| Origin | natural |
Open cluster — naked-eye deep-sky object. Distance 136.2 pc. Integrated V ≈ 1.6. Extent: 76.4′ (r50, CG2020) ≈ 3.0 pc radius at the published distance. The Seven Sisters — the sky's most famous cluster, named in cultures worldwide. Distance 136.2 ± 1.2 pc by VLBI parallax [Melis et al. 2014], settling the Hipparcos-era controversy; centroid + r50 from the Gaia DR2 census [Cantat-Gaudin et al. 2020].
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 | Naked-eye deep-sky objects (curated) |
|---|---|
| Authority | Cantat-Gaudin et al. 2020 (Gaia DR2 cluster census, VizieR J/A+A/640/A1) · Harris 1996 (globular-cluster catalogue, VizieR VII/202) · Melis et al. 2014 (Pleiades VLBI) · Menten et al. 2007 (Orion VLBI) · Göppl & Preibisch 2022 (Carina, Gaia EDR3); values verbatim, per-row citations in notes |
| Licence | Public astronomical facts (positions/distances/sizes/magnitudes), cited per row |
| How it entered | Curated data-as-code (src/ingest/catalogs/deepsky.ts) |
| Coverage | 31 classical naked-eye deep-sky objects — 20 open clusters (Pleiades · Hyades · Beehive · Ptolemy · Double Cluster · NGC 6231 …), 9 globular clusters (ω Cen · 47 Tuc · M13 …), 2 nebulae (Orion · Carina); names carry M/NGC/IC designations so the sky-culture deep-sky join attaches cultural names |
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.