Globular Cluster 47 Tucanae from SALT

Astronomy Picture of the Day · 2005-09-05 · NASA (public domain)

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Globular Cluster 47 Tucanae from SALT — APOD for 2005-09-05

Stars come in bunches. Of the over 200 globular star clusters that orbit the center of our Milky Way Galaxy , 47 Tucanae is the second brightest globular cluster, behind Omega Centauri . Known to some affectionately as 47 Tuc or NGC 104, it is only visible from Earth's Southern Hemisphere . It was therefore a fitting target for first light observations of the gigantic new 10-meter diameter Southern African Large Telescope (SALT) this past week. The resulting image is shown above . Light takes about 20,000 years to reach us from 47 Tuc which can be seen near the Small Magellanic Cloud toward the constellation of Tucana . The dynamics of stars near the center of 47 Tuc are not well understood, particularly why there are so few binary systems there.

Astronomy Picture of the Day for 2005-09-05 — image & explanation courtesy of NASA (public domain), mirrored at Tukuk-OS for reading and search convenience.

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