Complex sentence: The McMath-Hulbert Solar Observatory located in Lake Angelus, Michigan is a decommissioned solar observatory which was established in 1929 as a private observatory by father and son Francis Charles McMath and Robert Raynolds McMath.
Split into simpler sentences: The McMath-Hulbert Solar Observatory located in Lake Angelus, Michigan is a decommissioned solar observatory. It was established in 1929 as a private observatory by father and son Francis Charles McMath and Robert Raynolds McMath.