alb5566402

Abell 21, the Medusa Nebula in the constellation Gemini.

This is the faint but large planetary nebula known as the Medusa Nebula, but officially Abell 21 or PK 205+14.1 in Gemini. It was discovered in 1955 and was once classified as a supernova remnant. The very sparse open cluster NGC 2395 is at upper right from the nebula.. The nebula is thought to be 4 light-years across and 1500 light-years away.

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Titre: Abell 21, the Medusa Nebula in the constellation Gemini.

Légende: Voir la traduction automatique
This is the faint but large planetary nebula known as the Medusa Nebula, but officially Abell 21 or PK 205+14.1 in Gemini. It was discovered in 1955 and was once classified as a supernova remnant. The very sparse open cluster NGC 2395 is at upper right from the nebula.. The nebula is thought to be 4 light-years across and 1500 light-years away.

Crédit: Album / Alan Dyer/Stocktrek Images

Autorisations: ? Autorisation de modèle: Oui - ? Autorisation de propriété: Oui
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Taille de l'image: 6300 × 4261 px | 76.8 MB

Taille d'impression: 53.3 × 36.1 cm | 2480.3 × 1677.6 in (300 dpi)

Mots clés: ART, PHOTOGRAPHIE • ASTRONOMIE • ASTROPHYSIQUE • COSMOS • DEHORS • EN PLEINE NATURE • INSTANTANE (PHOTO) • INSTANTANÉ • NÉBULEUSE • OBSERVATOIRE • PHOTOGRAPHIE • PLANETARIUM • SCIENCE: ASTRONOMIE • SNAPSHOT