Figure 5. (IMAGE)

University of Helsinki

Figure 5.

Caption

Orbits of seven Milky Way satellite galaxies, integrated numerically for 1 billion years into the past and future, using proper motions from Gaia DR2 (left) and Gaia DR3 (right). While the Gaia DR2 proper motions have considerable uncertainty, the much more precise Gaia DR3 proper motions allow us to reconstruct the past and predict the future evolution with high precision.

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Image credit: Till Sawala.

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