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The large fluffy bluish-white material to the left of M81 is a neighboring galaxy called Holmberg IX. This galaxy is practically invisible to the naked human eye. However, it is illuminated brilliantly in GALEX's wide ultraviolet eyes. Its ultraviolet colors show that it is actively forming young stars. The bluish-white fuzz in the space surrounding M81 and Holmberg IX is new star formation triggered by gravitational interactions between the two galaxies. Some astronomers suspect that the galaxy Holmberg IX is the result of a galactic interaction between M81 and another neighboring galaxy M82. M81 and Holberg IX are located approximately 12 million light-years away in the northern constellation Ursa Major.
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Related Keywords ~
galaxy,
galaxy,
galaxy evolution explorer,
galex,
galex orbiter,
galex telescope,
holmberg,
holmberg ix,
m81,
m82,
new star,
spiral,
spiral galaxy
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