What Is Sgr A∗

What is Sgr A∗?

A) a source of bright X-ray emission coming from the entire constellation of Sagittarius
B) a source of bright radio emission in the center of our galaxy
C) a source of bright ultraviolet light near the center of our galaxy
D) the brightest star in the constellation Sagittarius
E) the bulge at the center of our galaxy

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