Metraipolis › archive › dc_357173845746

15 Lacertae — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/15_Lacertae
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-08T02:42:37.996Z
SHA-256 of the archived text: 91e95ec805a6ec724faf9bac8f16273a85fc15984f23fc570f5edd1e790338c6
Stable URL of this page: https://metraipolis.com/documento/dc_357173845746

How to cite

15 Lacertae — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/15_Lacertae (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_357173845746 (Metraipolis archive dc_357173845746, sha256 91e95ec805a6ec724faf9bac8f16273a85fc15984f23fc570f5edd1e790338c6)

BibTeX

@misc{dc357173845746,
  title = {15 Lacertae — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/15_Lacertae},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_357173845746; sha256 91e95ec805a6ec724faf9bac8f16273a85fc15984f23fc570f5edd1e790338c6},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/15_Lacertae. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

15 Lacertae is a binary star system in the northern constellation of Lacerta, near the southeast constellation border with Andromeda. It is faintly visible to the naked eye with an apparent visual magnitude of 4.95. The distance to this system is approximately 337 light years based on parallax. It is drifting closer to the Sun with a radial velocity of −19 km/s. The absolute magnitude of 15 Lacertae is −0.04. The primary component is an aging red giant with a stellar classification of M0 III. With the supply of hydrogen at its core exhausted, the star has cooled and expanded to 35 times the Sun's radius. It is radiating 269 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,047 K giving it a reddish hue. The secondary companion was discovered by American astronomer S. W. Burnham in 1888. It has a visual magnitude of 11.9 and is located at an angular separation of 23.6″ from the primary along a position angle of 159°, as of 2014.

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 «15 Lacertae» — https://en.wikipedia.org/wiki/15_Lacertae
Wikidata Q128606: «sistema multiplo di stelle nella costellazione della Lucertola» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q128606
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/15_Lacertae?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 1374783032, consultata il 2026-10-08T02:09:17.744Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: f5e26b942704db5d5ca1d3615e6040aca93a600408beeff11e884d6ff1c6b2c6