ISS010-E-12103
| NASA Photo ID | ISS010-E-12103 |
| Focal Length | 58mm |
| Date taken | 2004.12.25 |
| Time taken | 16:16:28 GMT |
1000 x 943 pixels 509 x 540 pixels 540 x 540 pixels 2000 x 1368 pixels 639 x 437 pixels
Photo center point: 37.5° N, 127.0° E
Photo center point by machine learning:
Country or Geographic Name: | SOUTH KOREA |
Features: | SEOUL AT NIGHT |
| Features Found Using Machine Learning: | |
Cloud Cover Percentage: | 10 (1-10)% |
Sun Elevation Angle: | -53° |
Sun Azimuth: | 61° |
Camera: | Nikon D1 Electronic Still Camera |
Focal Length: | 58mm |
Camera Tilt: | High Oblique |
Format: | 2000E: 2000 x 1312 pixel CCD, RGBG imager color filter |
Film Exposure: | |
| Additional Information | |
| Width | Height | Annotated | Cropped | Purpose | Links |
|---|---|---|---|---|---|
| 1000 pixels | 943 pixels | No | Yes | Earth From Space collection | Download Image |
| 509 pixels | 540 pixels | Yes | Yes | Earth From Space collection | Download Image |
| 540 pixels | 540 pixels | Yes | Yes | NASA's Earth Observatory web site | Download Image |
| 2000 pixels | 1368 pixels | No | No | Download Image | |
| 639 pixels | 437 pixels | No | No | Download Image |
The city of Seoul (originally known as Hanyang) has been the capitol of Korea for more than 600 years. It became the capitol of South Korea as part of that country's independence. Despite this long history, Seoul is a thoroughly modern megacity that has a population of over 10 million people. As the dominant (or "primate") city in South Korea, Seoul is a major force in regional politics, finance, culture, and education.
This astronaut photograph illustrates the Seoul urban area at night. Major roadways and river courses (such as the Han River) are clearly outlined by street lights, while the brightest lights indicate the downtown urban core (center of image) and large industrial complexes. One such complex is located at the far left of the image and occupies an island in the Yellow Sea. Very dark regions in the image are mountains or large bodies of water. Nighttime images have been used extensively in urban climate and urban growth research to map the extent of urban (bright) versus rural (dark) regions.
