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Star system · evidence and sources

Fomalhaut

A nearby A star whose Webb observation resolves three nested debris belts.

Also known as Alpha Piscis Austrini, α PsA, HD 216956, HIP 113368.

Catalog Position basis, the same label the app shows on the selection card.

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Every aspect, with its origin

One record per aspect. The origin says what kind of thing each value is; the source says where it came from; the limit says what it cannot tell you.

ObservedCatalogComputedReconstructedIllustrativeUndocumented
Position Catalog

Sky position and distance

Fomalhaut is placed at J2000 RA 23 h, Dec -29.6° at 25.1 light-years.

SourceJWST MIRI
EpochJ2000
Physical data Catalog

Measured outer-belt geometry

The 3D belt uses the published 65.68° inclination and 156.08° position angle.

SourceKalas et al. 2005 · record doi:10.1038/nature03601
Appearance Observed

Webb 25.5 μm observation

The JWST/MIRI image that revealed three nested debris belts is available under Evidence & sources.

SourceNASA Webb asset · record JWST program 1193
Epoch2022-10-21
Appearance Reconstructed

Disk rendering

The close-up wraps the JWST MIRI image (25.5 μm) on a disk tilted to the published inclination and position angle, with 40,000 particles sampled from its ring profile.

LimitVertical structure and the far side of the disk are not resolved by the image; scale height is a display choice.
Description Undocumented

Description and facts

The short description and the fact list are written by the Space Time authors for orientation. They are not quoted from a catalog field and carry no citation of their own.

SourceSpace Time editorial text

What is not measured

  • Appearance: a reconstruction from measurements, not a direct observation. Disk rendering. Vertical structure and the far side of the disk are not resolved by the image; scale height is a display choice.

Not yet documented

  • Description: The short description and the fact list are written by the Space Time authors for orientation. They are not quoted from a catalog field and carry no citation of their own.

Sources cited

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