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1 Centauri — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/1_Centauri
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-01T08:17:25.232Z
SHA-256 of the archived text: 074d21a8ac6e720dca95ae22dc3def836301bfe466d1fe99185788035ef6f84d
Stable URL of this page: https://metraipolis.com/documento/dc_673299aed8a1

How to cite

1 Centauri — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/1_Centauri (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_673299aed8a1 (Metraipolis archive dc_673299aed8a1, sha256 074d21a8ac6e720dca95ae22dc3def836301bfe466d1fe99185788035ef6f84d)

BibTeX

@misc{dc673299aed8a1,
  title = {1 Centauri — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/1_Centauri},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_673299aed8a1; sha256 074d21a8ac6e720dca95ae22dc3def836301bfe466d1fe99185788035ef6f84d},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/1_Centauri. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

1 Centauri, or i Centauri, is a yellowhite-hued binary star system in the southern constellation Centaurus. It can be seen with the naked eye, having an apparent visual magnitude of +4.23. Based upon an annual parallax shift of 51.54 mas as seen from Earth's orbit, it is located 63.3 light-years from the Sun. The system is moving closer to the Sun with a radial velocity of −21.5 km/s. Spectrographic images taken at the Cape Observatory between 1921 and 1923 showed this star has a variable radial velocity, which indicated this is a single-lined spectroscopic binary star system. The pair have an orbital period of 9.94 days and an eccentricity of about 0.2. The primary component has received a number of different stellar classifications. For example, Jaschek et al. (1964) lists F0V, F2III, F4III and F4IV, thus ranging in evolutionary state from an ordinary F-type main-sequence star to a giant star. More recently, Houk (1982) listed a class of F3 V, matching an ordinary main-sequence star that is generating energy through hydrogen fusion at its core. The NStars project gives it a classification of F2 V.

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 «1 Centauri» — https://en.wikipedia.org/wiki/1_Centauri
Wikidata Q4595939: «stella nella costellazione del Centauro» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q4595939
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/1_Centauri?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 1380223319, consultata il 2026-11-01T08:08:45.618Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 8e7a5e68dddaf0f3a4390dc5cef53342a28fe5713dc53944bd6f7d7222195d9f