Nombre total de pages vues

296945

12/01/2023

ASTRONOMY - Stardust in Perseus

2023 January 12
See Explanation.  Clicking on the picture will download
the highest resolution version available.

Stardust in Perseus
Image Credit & CopyrightJack Groves

Explanation: This cosmic expanse of dust, gas, and stars covers some 6 degrees on the sky in the heroic constellation Perseus. At upper left in the gorgeous skyscape is the intriguing young star cluster IC 348 and neighboring Flying Ghost Nebula with clouds of obscuring interstellar dust cataloged as Barnard 3 and 4. At right, another active star forming region NGC 1333 is connected by dark and dusty tendrils on the outskirts of the giant Perseus Molecular Cloud, about 850 light-years away. Other dusty nebulae are scattered around the field of view, along with the faint reddish glow of hydrogen gas. In fact, the cosmic dust tends to hide the newly formed stars and young stellar objects or protostars from prying optical telescopes. Collapsing due to self-gravity, the protostars form from the dense cores embedded in the molecular cloud. At the molecular cloud's estimated distance, this field of view would span over 90 light-years. 

Aucun commentaire:

Enregistrer un commentaire

Commentez ici

ORNITHOLOGIE - Onoré du Mexique - le roi du camouflage des marais

L'Onoré du Mexique (Tigrisoma mexicanum), ou grue d'eau, est un oiseau aquatique fascinant, unique qui joue un rôle important dans ...