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Central regions of 47 Tucanae seen in the ultraviolet

Central regions of 47 Tucanae seen in the ultraviolet


Date: 14 May 2015
Satellite: Hubble Space Telescope
Depicts: 47 Tucanae, NGC 104
Copyright: NASA, ESA, and H. Richer and J. Heyl (University of British Columbia, Vancouver)

This NASA/ESA Hubble Space Telescope image shows the central region of a globular cluster known as NGC 104 – or, more commonly, 47 Tucanae, since it is part of the constellation of Tucana (The Toucan) – seen in ultraviolet light.

Using the ultraviolet capabilities of Hubble's sharp-eyed Wide Field Camera 3, the astronomers traced populations of white dwarfs with a range of ages and positions. This made it possible, for the first time, to collect a census of young white dwarf stars beginning their migration from the crowded centre of an ancient star cluster to its less populated outskirts.

Last Update: 1 September 2019
1-Dec-2022 21:18 UT

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