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Affichage des articles dont le libellé est ASTRONOMY - IC 5146: The Cocoon Nebula. Afficher tous les articles
Affichage des articles dont le libellé est ASTRONOMY - IC 5146: The Cocoon Nebula. Afficher tous les articles

27/08/2022

ASTRONOMY - IC 5146: The Cocoon Nebula

 2022 August 27

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IC 5146: The Cocoon Nebula
Image Credit & CopyrightDavid Jenkins

Explanation: Inside the Cocoon Nebula is a newly developing cluster of stars. Cataloged as IC 5146, the beautiful nebula is nearly 15 light-years wide. Climbing high in northern summer night skies, it's located some 4,000 light years away toward the constellation Cygnus the Swan. Like other star forming regions, it stands out in red, glowing, hydrogen gas excited by young, hot stars, and dust-reflected starlight at the edge of an otherwise invisible molecular cloud. In fact, the bright star found near the center of this nebula is likely only a few hundred thousand years old, powering the nebular glow as it clears out a cavity in the molecular cloud's star forming dust and gas. A 29 hour long integration with a small telescope from Ayr, Ontario, Canada resulted in this exceptionally deep color view tracing tantalizing features within and surrounding the dusty stellar nursery.

SANTé/MEDECINE - Grands noms de la médecine - Wilhelm Röntgen

Wilhelm Röntgen est un physicien né le 27 mars 1845 à Lennep, en Allemagne. En 1895, il découvre les rayons X et invente la radiographie ....