Grand Central West: 42nd Street to the Hudson
☉ The Opal Clock, Grand Central Main Concourse
Starts at ☉ The Opal Clock, Grand Central Main Concourse. You'll get directions there, then scan the GO code on your card when you arrive.
The same 30-inch opal clock, walked west instead of north. The clock fixes the scale at 1 : 1.8 billion, so the crowded part of the system is the same on any walk from this Sun — Mercury and Venus never leave the terminal, and Earth is the first breath of outside air. What changes is everything after Jupiter. Forty-second Street runs due west across the whole island, so this walk takes it: Saturn in Times Square, Uranus at Penn Station, Neptune out on a pier at the Hudson itself. 1.5 miles from the clock to the last planet, and you spend most of it walking past nothing. Fully walkable in an afternoon — no transit required once you're at the clock.
The Sun
☉ The Opal Clock, Grand Central Main Concourse
The four-faced opal clock atop the information booth at the centre of the Main Concourse — 30 inches across, and every other number on this walk follows from it. At 1 : 1.8 billion the four rocky planets are all within 500 feet of it, which is why they are the same stops on every walk from this Sun. The walks only separate once the gaps open.
See this stop →Getting there
The route
Tap a stop to expand it and locate it on the map.
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