Terzan 7 Star Cluster (Fulldome View) | Hubble
Named after its discoverer, the French-Armenian astronomer Agop Terzan, this is the globular cluster Terzan 7—a densely packed ball of stars bound together by gravity. It lies just over 75,000 light-years away from us on the other side of our galaxy, the Milky Way. It is a peculiar cluster, quite unlike others we observe, making it an intriguing object of study for astronomers.
Evidence shows that Terzan 7 used to belong to a small galaxy called the Sagittarius Dwarf Galaxy, a mini-galaxy discovered in 1994. This galaxy is currently colliding with, and being absorbed by, the Milky Way, which is a monster in size when compared to this tiny one. It seems that this cluster has already been kidnapped from its former home and now is part of our own galaxy.
This video is designed for fulldome planetarium use (fish-eye view).
Credit: NASA, European Space Agency (ESA), and A. Sarajedini (University of Florida). Acknowledgement: Gilles Chapdelaine and Theofanis N. Matsopoulos
Duration: 24 seconds
Release Date: February 17, 2016
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