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120347 Salacia — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/120347_Salacia
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-07T19:07:35.472Z
SHA-256 of the archived text: f92ad904da6192ae9303ab3780cdad443e9d0153148c2b8eda5a054662289b78
Stable URL of this page: https://metraipolis.com/documento/dc_30ec00da0ac6

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120347 Salacia — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/120347_Salacia (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_30ec00da0ac6 (Metraipolis archive dc_30ec00da0ac6, sha256 f92ad904da6192ae9303ab3780cdad443e9d0153148c2b8eda5a054662289b78)

BibTeX

@misc{dc30ec00da0ac6,
  title = {120347 Salacia — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/120347_Salacia},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_30ec00da0ac6; sha256 f92ad904da6192ae9303ab3780cdad443e9d0153148c2b8eda5a054662289b78},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/120347_Salacia. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

120347 Salacia (provisional designation 2004 SB60) is a large trans-Neptunian object in the Kuiper belt. It was discovered on 22 September 2004 by American astronomers Henry G. Roe, Michael E. Brown, and Kristina Barkume using the Hale Reflector at the Palomar Observatory. Its discovery was officially announced in May 2005. Salacia orbits the Sun at an average distance slightly greater than that of Pluto, and is classified as a hot cubewano or a scattered–extended object. It was named after the Roman sea goddess Salacia. Salacia is a possible dwarf planet with an estimated diameter of 838±44 km, and a low light curve, implying a nearly spherical shape. While older size estimates suggested a low density and highly porous interior, newer measurements calculate a higher density between 1.45 g/cm3 and 1.50±0.12 g/cm3. It has a dark gray surface with a neutral color index and an exceptionally low albedo of 0.041±0.004. This low albedo indicates a lack of geological activity. Observations by the James Webb Space Telescope (JWST) showed that water ice makes up less than 5% of its surface, detecting both amorphous and crystalline water ice alongside carbon dioxide ice. It lacks volatile super-ices like methane, placing it in the "prominent water" (H2O-type) TNO group alongside objects like 307261 Máni and 90482 Orcus. Salacia has one known moon, Actaea, and their combined system mass is 4.861+0.076−0.074×1020 kg. The primary body and its moon form a fully tidally locked system with a synchronous rotation period of 5.49 days, similar to the Pluto–Charon system. The two bodies will pass directly in front of each other during a rare mutual occultation season starting in 2067.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (deposito sistematico; retro-catalogo: tutte le voci di Wikipedia in inglese, in ordine alfabetico).
Fonte: Wikipedia in inglese, voce «120347 Salacia» — https://en.wikipedia.org/wiki/120347_Salacia
Wikidata Q136964 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q136964
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/120347_Salacia?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1375147511, consultata il 2026-10-07T18:32:59.349Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: f89a995df698305f171315b7469edb970b6a9cdb5a9b0ea5909f30e1b4ffe971