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24 Comae Berenices — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/24_Comae_Berenices
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-06T11:35:19.257Z
SHA-256 of the archived text: 11d3d8f90c019a909d82bef6dfa56060b698f37cb972f5140822c7b015d8c6ac
Stable URL of this page: https://metraipolis.com/documento/dc_bb2ebec69e26

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24 Comae Berenices — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/24_Comae_Berenices (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_bb2ebec69e26 (Metraipolis archive dc_bb2ebec69e26, sha256 11d3d8f90c019a909d82bef6dfa56060b698f37cb972f5140822c7b015d8c6ac)

BibTeX

@misc{dcbb2ebec69e26,
  title = {24 Comae Berenices — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/24_Comae_Berenices},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_bb2ebec69e26; sha256 11d3d8f90c019a909d82bef6dfa56060b698f37cb972f5140822c7b015d8c6ac},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/24_Comae_Berenices. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

24 Comae Berenices is a triple star system in the northern constellation of Coma Berenices. It is visible to the naked eye, with the brightest component being an orange-hued star with an apparent visual magnitude of 5.03. The system is located at a distance of approximately 369 light-years from the Sun based on parallax, and is drifting further away with radial velocities of 3–5 km/s. This system can be resolved in a telescope as a pair of stars with an angular separation of 20.2″ along a position angle of 272°, as of 2018. They share a common motion through space and thus appear to be physically associated, with a wide projected separation of 1,400 AU or greater. If they are bound in an orbit, the estimated period is approximately 28,000 years. The brighter member of this system is an aging giant or bright giant star with a stellar classification of K0II-III. It has exhausted the supply of hydrogen at its core and expanded to 20 times the girth of the Sun. This is a suspected variable that has been recorded ranging in brightness from magnitude 4.98 down to 5.06. The star is radiating 173 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,688 K. The fainter component at magnitude 6.57 is a double-lined spectroscopic binary with an orbital period of 7.33 days and an eccentricity of 0.26. The primary member of this pair is an A-type main-sequence star with a stellar classification of A9V. It is a metallic-lined Am star with 2.2 times the radius of the Sun. The stars radiate about 16 and 7 times the Sun's luminosity from its photosphere, respectively, at effective temperatures of 7,630 and 7180 K, respectively. Both have relatively low projected rotational velocity of around 14 km/s, and it is suspected the rotations of this binary system may be synchronized. The system is a source for X-ray emission, which is most likely coming from the secondary.

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 «24 Comae Berenices» — https://en.wikipedia.org/wiki/24_Comae_Berenices
Wikidata Q68731041: «triple star system in the constellation Coma Berenices» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q68731041
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/24_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 1374789768, consultata il 2026-11-06T11:31:26.109Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 3d2cda98edc092ce7fde6d5418070c4452c7d43ebb7de939e8a882144a2fce2e