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40 Aurigae — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/40_Aurigae
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-06T16:07:24.254Z
SHA-256 of the archived text: d374a91dc9319bbca4f028a981d05f239c4ffd08e6bcfbda4fe027645e18e38b
Stable URL of this page: https://metraipolis.com/documento/dc_d368db45f29b

How to cite

40 Aurigae — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/40_Aurigae (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_d368db45f29b (Metraipolis archive dc_d368db45f29b, sha256 d374a91dc9319bbca4f028a981d05f239c4ffd08e6bcfbda4fe027645e18e38b)

BibTeX

@misc{dcd368db45f29b,
  title = {40 Aurigae — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/40_Aurigae},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_d368db45f29b; sha256 d374a91dc9319bbca4f028a981d05f239c4ffd08e6bcfbda4fe027645e18e38b},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/40_Aurigae. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

40 Aurigae is a binary star in the constellation Auriga. Its apparent magnitude is 5.345, meaning it can just barely be seen with the naked eye. Based on parallax estimates made by the Hipparcos spacecraft, the system is located some 340 light-years (104 parsecs) away. 40 Aurigae is a spectroscopic binary, meaning the two stars are too close to be individually resolved, but periodic Doppler shifts in their spectra indicate there must be orbital motion. In this case, light from both stars can be detected and it is a double-lined spectroscopic binary. The two have an orbital period of 28.28 days and a fairly high eccentricity of 0.56. The primary star is an A-type main-sequence star and shows unusual absorption lines in its spectrum, so it is an Am star with an effective temperature of 7,838 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 «40 Aurigae» — https://en.wikipedia.org/wiki/40_Aurigae
Wikidata Q1107742: «stella binaria nella costellazione di Auriga» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q1107742
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/40_Aurigae?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 1370771690, consultata il 2026-11-06T15:59:17.406Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: bf6e6dfd1b4d0bebc445bccf9c08970bd4515185d0b339d47fc1e246da81a7ee