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The Gateway to Astronaut Photography of Earth
(NASA Crew Earth Observations)
Astronaut Photography of Earth - Display Record
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Pre-catalog InformationCamera as Recorded in the Camera File: K760C-05160
Camera Focal Length: 180mm
GMT Date: 20050322 (YYYYMMDD) GMT Time: 195242 (HHMMSS)
Nadir Latitude: 46.0 Nadir Longitude: -81.3 (Negative numbers indicate south for latitude and west for longitude)
Spacecraft Altitude 190 nautical miles
Sun Azimuth: 225 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Sun Elevation Angle: 35 (Angle in degrees between the horizon and the sun, measured at the nadir point)
CaptionsISS010-E-20813 (22 March 2005) --- The Straits of Mackinac are featured in this image photographed by an Expedition 10 crewmember on the International Space Station (ISS). The Mackinac Bridge spans a stretch of water five miles wide between Michiganís lower and upper peninsulas. The strait connects Lakes Michigan (left) and Huron (right). The bridge is a combination of pier-supported spans with a high, central suspension sector that allows passage of lake steamers. The suspension sector is the longest in the Americas (8614 feet or 1.6 miles). Prior to construction of the bridge, the only passage across the straits was by ferryboat. This view shows shipping lanes opened by ice breakers. A narrow passage leads to the small town of St. Ignace at the north end of the bridge (Mackinaw City appears at the south end). The shipping channel is maintained even through remnants of the ice mass, but the ice ridges can be hazardous to shipping during ice break-up.
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Recommended Citation: Earth Science and Remote Sensing Unit, NASA-Johnson Space Center. "The Gateway to Astronaut Photography of Earth." .