Robby
02-28-2008, 10:44 AM
http://antwrp.gsfc.nasa.gov/apod/image/0802/iss07feb08_credner_p.jpg (http://antwrp.gsfc.nasa.gov/apod/image/0802/iss07feb08m_credner.mpg)
ISS: Sunlight to Shadow
Credit & Copyright (http://antwrp.gsfc.nasa.gov/apod/lib/about_apod.html#srapply): Till Credner (credner@allthesky.com), AlltheSky.com (http://www.allthesky.com)
Explanation: Orbiting 400,000 kilometers above the Earth, the Moon slid (http://antwrp.gsfc.nasa.gov/apod/ap080220.html) into Earth's shadow to begin last week's total lunar eclipse (http://antwrp.gsfc.nasa.gov/apod/ap080222.html). Of course the International Space Station (http://www.nasa.gov/mission_pages/station/main/ index.html) (ISS) slides into Earth's shadow every 90 minutes, the time it takes it to complete one orbit at (http://spaceflight.nasa.gov/realdata/tracking/) an altitude of about 400 kilometers. Recorded near sunset (http://antwrp.gsfc.nasa.gov/apod/ap071227.html) on February 7, looking toward the north, this composite (http://www.allthesky.de/various/iss07feb08.html) of 70 exposures shows the trail of the ISS (with gaps between exposures) as it moved left to right over the city of Tübingen in southern Germany. Beginning (http://spaceflight.nasa.gov/realdata/sightings/) in sunlight on the left, the ISS vanishes as it enters Earth's shadow at the far right, above the northeastern horizon. As seen from Tübingen, the passage took about 4 minutes. Clicking on the image will download a time-lapse (http://en.wikipedia.org/wiki/Time-lapse) animation (mpg file) based on the individual exposures that includes a plane flying along (http://uk.youtube.com/watch?v=0rfL00UCANA) the horizon.
(Via NASA (http://antwrp.gsfc.nasa.gov/apod/ap080228.html))
ISS: Sunlight to Shadow
Credit & Copyright (http://antwrp.gsfc.nasa.gov/apod/lib/about_apod.html#srapply): Till Credner (credner@allthesky.com), AlltheSky.com (http://www.allthesky.com)
Explanation: Orbiting 400,000 kilometers above the Earth, the Moon slid (http://antwrp.gsfc.nasa.gov/apod/ap080220.html) into Earth's shadow to begin last week's total lunar eclipse (http://antwrp.gsfc.nasa.gov/apod/ap080222.html). Of course the International Space Station (http://www.nasa.gov/mission_pages/station/main/ index.html) (ISS) slides into Earth's shadow every 90 minutes, the time it takes it to complete one orbit at (http://spaceflight.nasa.gov/realdata/tracking/) an altitude of about 400 kilometers. Recorded near sunset (http://antwrp.gsfc.nasa.gov/apod/ap071227.html) on February 7, looking toward the north, this composite (http://www.allthesky.de/various/iss07feb08.html) of 70 exposures shows the trail of the ISS (with gaps between exposures) as it moved left to right over the city of Tübingen in southern Germany. Beginning (http://spaceflight.nasa.gov/realdata/sightings/) in sunlight on the left, the ISS vanishes as it enters Earth's shadow at the far right, above the northeastern horizon. As seen from Tübingen, the passage took about 4 minutes. Clicking on the image will download a time-lapse (http://en.wikipedia.org/wiki/Time-lapse) animation (mpg file) based on the individual exposures that includes a plane flying along (http://uk.youtube.com/watch?v=0rfL00UCANA) the horizon.
(Via NASA (http://antwrp.gsfc.nasa.gov/apod/ap080228.html))