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11 Comae Berenices — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/11_Comae_Berenices
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-07T17:38:03.582Z
SHA-256 of the archived text: c1c26bb9976fb6877c0507b6ff5c9fb963140e84e4775b1f42644faf4b11b4bb
Stable URL of this page: https://metraipolis.com/documento/dc_dace38fefa8a

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11 Comae Berenices — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/11_Comae_Berenices (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_dace38fefa8a (Metraipolis archive dc_dace38fefa8a, sha256 c1c26bb9976fb6877c0507b6ff5c9fb963140e84e4775b1f42644faf4b11b4bb)

BibTeX

@misc{dcdace38fefa8a,
  title = {11 Comae Berenices — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/11_Comae_Berenices},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_dace38fefa8a; sha256 c1c26bb9976fb6877c0507b6ff5c9fb963140e84e4775b1f42644faf4b11b4bb},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/11_Comae_Berenices. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

11 Comae Berenices is a binary star system in the northern constellation of Coma Berenices, located in the sky, east and slightly north of Denebola in Leo, but not nearly as far east as ε Virginis in Virgo. It is about a degree from the elliptical galaxy M85 and two degrees north of the spiral galaxy M100. Based upon an annual parallax shift of 10.7104 mas, the star is located 305 light years away from the Sun. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.72. This body is moving away from the Sun with a heliocentric radial velocity of +44 km/s. The primary component is an aging K-type giant star with a stellar classification of K0 III. It is a low metallicity star with an iron abundance about half that of the Sun. Keenan and McNeil (1989) found a class of G8+ III Fe-1, showing an underabundance of iron in the spectrum. At the age of 1.5 billion years old with 1.7 times the mass of the Sun, it has exhausted the hydrogen at its core and expanded to 15.8 times the Sun's radius. The star is radiating 110 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,670 K. It has a magnitude 12.9 companion star at an angular separation of 8.8″ along a position angle of 44°, as of 2007.

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 «11 Comae Berenices» — https://en.wikipedia.org/wiki/11_Comae_Berenices
Wikidata Q4547758 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q4547758
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/11_Comae_Berenices?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 1370770450, consultata il 2026-10-07T17:08:11.602Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 581be89b480c71486b1a39a7783dc27740e3c3e4690ab0337461993235bb14a5