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Arp 7 — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Arp_7
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-09T23:41:21.485Z
SHA-256 of the archived text: 64ed2e86449c853680d1c09fdd62843eedef50b591b47c65afb36b1ea1edd9b0
Stable URL of this page: https://metraipolis.com/documento/dc_85bd2a830609

How to cite

Arp 7 — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Arp_7 (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_85bd2a830609 (Metraipolis archive dc_85bd2a830609, sha256 64ed2e86449c853680d1c09fdd62843eedef50b591b47c65afb36b1ea1edd9b0)

BibTeX

@misc{dc85bd2a830609,
  title = {Arp 7 — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Arp_7},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_85bd2a830609; sha256 64ed2e86449c853680d1c09fdd62843eedef50b591b47c65afb36b1ea1edd9b0},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Arp_7. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Arp 7 (PGC 24836) is a spiral galaxy in the constellation Hydra. Redshift-independent measurements of its distance vary widely, from 5.9 to 83.7 megaparsecs (19.24 to 273.0 million light-years). Its morphological classification is SB(rs)bc, meaning it is a barred spiral galaxy with some ring-like structure. Arp 7 was imaged by Halton Arp and included in his Atlas of Peculiar Galaxies under the category of 'split arm' galaxies. Five other galaxies are also included in this section of the atlas: Arp 8 (NGC 497), Arp 9 (NGC 2523), Arp 10 (UGC 1775), Arp 11 (UGC 717), and Arp 12 (NGC 2608). Arp 7 is known to be both Seyfert I galaxy and HII galaxy.

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 «Arp 7» — https://en.wikipedia.org/wiki/Arp_7
Wikidata Q6040336: «spiral Galaxy in the constellation of Hydra» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q6040336
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Arp_7?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 1382058678, consultata il 2026-11-09T23:38:15.627Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 5e8ab62a1c1d9d94ccb794c1aba7e0ac900c2362081fe5227de4ab2869ec31f5