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From: Maltek <malteque@free.fr>
Newsgroups: fr.sci.astrophysique
Subject: Re: Idée du nombre de galaxies
Date: Thu, 28 Dec 2023 18:21:30 +0100
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On Thu, 28 Dec 2023 12:01:44 +0100, capfree wrote:

>Bonjour
>
>Une question de Béotien, le chiffre que j'ai lu échappant complètment à 
>mon entendement pour le ramener - peut-être -  à un chiffre plus 
>sensible, a-t'on une idée du nombre de galaxies qu'il y aurait dans 
>l'espace carré d'une seconde d'arc de la sphère céleste?
>
>Merci de votre réponse.

Bonjour,
sauf erreur, environ 3 ou 4. 
2000 milliards de galaxies, réparties sur 4.pi stéradians soit
534638351654 (seconde d'arc)^2, donc 3.74 galaxie / (")^2.