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The Gateway to Astronaut Photography of Earth
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Astronaut Photography of Earth - Display Record
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IdentificationMission: ISS028 Roll: E Frame: 18562 Mission ID on the Film or image: ISS028
Country or Geographic Name: CRETE
Features: SUNGLINT, GAVDOS ISLAND, DIA ISLAND, HERAKLION
Center Point: Latitude: 35.0 Longitude: 25.0 (Negative numbers indicate south for latitude and west for longitude)
Stereo: (Yes indicates there is an adjacent picture of the same area)
ONC Map ID: JNC Map ID:
CameraCamera Tilt: 46
Camera Focal Length: 48mm
Camera: N5: Nikon D3S
Film: 4256E : 4256 x 2832 pixel CMOS sensor, 36.0mm x 23.9mm, total pixels: 12.87 million, Nikon FX format.
Percentage of Cloud Cover: 10 (0-10)
GMT Date: 20110722 (YYYYMMDD) GMT Time: 105226 (HHMMSS)
Nadir Point Latitude: 33.9, Longitude: 28.4 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: West
Sun Azimuth: 216 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 210 nautical miles (389 km)
Sun Elevation Angle: 74 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 641
CaptionsIsland of Crete, Greece
Note: This caption refers to the image versions labeled "NASA's Earth Observatory web site".
In classical Greek mythology the island of Crete was home to King Minos and the terrible Minotaur, a beast that was half man and half bull. The known historical record of Crete is no less impressive. The island was the center of the Bronze Age Minoan civilization that flourished from approximately 2700 – 1420 BC. There is archeological, geological, and cultural evidence to suggest that a cataclysmic volcanic eruption in approximately 1620 BC of Santorini volcano was a major cause of the decline – if not complete destruction - of the Minoan civilization.
Today, Crete is the largest and most heavily populated island of Greece (or the Hellenic Republic). The island extends for approximately 260 km and is approximately 60 km across at its widest point. The terrain of Crete is rugged and includes mountains, plateaus, and several deep gorges. The largest city on the island, Heraklion, is located along the northern coastline (image center). Several smaller islands ring Crete; two of the largest of these, Dia and Gavdos are sparsely populated year-round, although Gavdos hosts numerous summer visitors.
The western and central parts of Crete appear surrounded by quicksilver in this astronaut photograph taken from the International Space Station. This phenomenon is known as sunglint, caused by light reflecting off of the sea surface directly toward the observer. The point of maximum reflectance is visible as a bright white region to the northwest of the island (image upper left). Surface currents causing variations in the degree of reflectance are visible near the southwestern shoreline of Crete and the smaller island of Gavdos (image lower left).
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Recommended Citation: Earth Science and Remote Sensing Unit, NASA-Johnson Space Center. "The Gateway to Astronaut Photography of Earth." .