A Messier Sydney

M2: a globular motorway in the Hills District 37,500 light years from Earth.

M4: a toll-free cluster with the apparent diameter of the full Moon.

M5: located in the Serpent, one of the oldest motorways associated with the Milky Way galaxy.

M7: also known as the Ptolemy Cluster, this open group of more than 80 stars has gateless tolling and connects with the M4 at the Light Horse stack interchange.

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