ESO_383-76 | TriviaQuestions.online

⭐ In the context of type-cD galaxies, what characteristic primarily defines their classification and distinguishes them from other elliptical galaxies?

Type-cD galaxies are specifically identified by the substantial halo of stars surrounding them, which is a key feature differentiating them within the broader category of elliptical galaxies.

⭐ Core Definition: ESO 383-76

ESO 383-76 (ESO 383-G 076) is an elongated, X-ray luminous supergiant elliptical galaxy, residing as the dominant, brightest cluster galaxy (BCG) of the Abell 3571 galaxy cluster, the sixth-brightest in the sky at X-ray wavelengths. It is located at the distance of 200.6 megaparsecs (654 million light-years) from Earth, and is possibly a member of the large Shapley Supercluster. With a diameter of about 540.9 kiloparsecs (1.8 million light-years), it is one of the largest galaxies known. It also contains a supermassive black hole, one of the most massive known with mass estimates varying from 2 billion M_☉ to 28 billion M_☉.

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👉 ESO 383-76 in the context of Type-cD galaxy

The type-cD galaxy (also cD-type galaxy, cD galaxy) is a galaxy morphology classification, a subtype of type-D giant elliptical galaxy. Characterized by a large halo of stars, they can be found near the centres of some rich galaxy clusters. They are also known as supergiant ellipticals or central dominant galaxies.

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