On Monday, Oct. 27, a private Antares rocket built by the commercial spaceflight company Orbital Sciences will launch the Orb-3 cargo mission for NASA to the International Space Station. The launch is set for 6:45 p.m. EDT (2245 GMT) and it should be visible to potentially millions of skywatchers along the U.S. East Coast, weather permitting. The rocket will blast off from a pad at NASA's Wallops Flight Facility on Wallops Island, Virginia. See the visibility maps below (directions of view are in bold) to learn how to spot the rocket streak into space: This map shows the maximum elevation that Orbital's Antares rocket will reach during its first-stage engine burn. This elevation in the evening sky depends heavily on where you are observing from, but the chart above lists the elevation in terms of degrees. Your closed fist held outstretched at arm's length covers about 10 degrees of the night sky. So for observers in Washington, D.C., the rocket will be 12 degrees above the horizon (just over one fist-width), while for observers in Boston, Massachuchusetts, the launch will appear just 5 degrees above the horizon, or half of a fist-width). Credit: Orbital Sciences See more visibility maps via Space.com.
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