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BG Crucis — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/BG_Crucis
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-10T17:20:20.738Z
SHA-256 of the archived text: b5d06e7a3c4086bf0a43778db27a37a099c818ed78a18f83f019e3b94cb33217
Stable URL of this page: https://metraipolis.com/documento/dc_bbdebac3d293

How to cite

BG Crucis — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/BG_Crucis (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_bbdebac3d293 (Metraipolis archive dc_bbdebac3d293, sha256 b5d06e7a3c4086bf0a43778db27a37a099c818ed78a18f83f019e3b94cb33217)

BibTeX

@misc{dcbbdebac3d293,
  title = {BG Crucis — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/BG_Crucis},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_bbdebac3d293; sha256 b5d06e7a3c4086bf0a43778db27a37a099c818ed78a18f83f019e3b94cb33217},
  year = {2026}
}

Archived text

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

BG Crucis is a suspected binary star system in the southern constellation of Crux. It is visible to the naked eye as a faint yellow-white hued point of light with an apparent visual magnitude of about 5. The system is located at a distance of approximately 1,830 light years from the Sun based on parallax, and is drifting closer with a radial velocity of −19 km/s. The visible component is a supergiant star that pulsates between spectral types F5Ib and G0p. It is a small amplitude classical Cepheid variable with an apparent magnitude ranges from 5.34 down to 5.58 over a period of 3.3428 days. On the Hertzsprung–Russell diagram of temperature versus luminosity, it is located near the blue (hotter) edge of the Cepheid instability strip. Models indicate the cepheid region is relatively small in this star, so there are no shock waves produced as a result of the instability. BG Crucis is 64 million years old with four to six times the mass of the Sun. Having exhausted the supply of hydrogen at its core, it has expanded to 39 times the Sun's radius. It is radiating over a thousand times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 6,253 K.

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 «BG Crucis» — https://en.wikipedia.org/wiki/BG_Crucis
Wikidata Q10907054: «stella nella costellazione della Croce del Sud» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q10907054
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/BG_Crucis?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 1374791213, consultata il 2026-11-10T17:11:06.247Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 8087b607e3010c88bbaa43241ea8712e43cd10c7024a9e665835b9fc5f16c4dd