File:Sunset from the ISS.JPG
Summary
This spectacular image of sunset on the <a href="//commons.wikimedia.org/wiki/Indian_Ocean" title="Indian Ocean">Indian Ocean</a> was taken by astronauts aboard the <a href="//commons.wikimedia.org/wiki/International_Space_Station" title="International Space Station">International Space Station</a> (ISS). The image presents an edge-on, or limb view, of the Earth’s atmosphere as seen from <a href="//commons.wikimedia.org/wiki/Orbit" title="Orbit">orbit</a>. The Earth’s curvature is visible along the horizon line, or limb, that extends across the image from centre left to lower right. Above the darkened surface of the Earth, a brilliant sequence of colours roughly denotes several layers of the atmosphere.
Deep <a href="//commons.wikimedia.org/wiki/Orange_(color)" title="Orange (color)">oranges</a> and <a href="//commons.wikimedia.org/wiki/Category:Yellow" title="Category:Yellow">yellows</a> appear in the troposphere, which extends from the Earth’s surface to 6–20 km high. This layer contains over 80 percent of the mass of the atmosphere and almost all of the <a href="//commons.wikimedia.org/wiki/Water" title="Water">water</a> vapour, <a href="//commons.wikimedia.org/wiki/Cloud" title="Cloud">clouds</a>, and precipitation. Several dark cloud layers are visible within this layer. Variations in the colours are due mainly to varying concentrations of either clouds or aerosols (airborne particles or droplets). The <a href="//commons.wikimedia.org/wiki/Category:Pink" title="Category:Pink">pink</a> to <a href="//commons.wikimedia.org/wiki/Category:White" title="Category:White">white</a> region above the clouds appears to be the stratosphere; this atmospheric layer generally has little or no clouds and extends up to approximately 50 km above the Earth’s surface. Above the stratosphere, <a href="//commons.wikimedia.org/wiki/Blue" title="Blue">blue</a> layers mark the upper atmosphere (including the mesosphere, thermosphere, <a href="//commons.wikimedia.org/wiki/Category:Ionosphere" title="Category:Ionosphere">ionosphere</a>, and exosphere) as it gradually fades into the <a href="//commons.wikimedia.org/wiki/Category:Black" title="Category:Black">blackness</a> of outer <a href="//commons.wikimedia.org/wiki/Space" class="mw-redirect" title="Space">space</a>.
The ISS was located over the southern Indian Ocean when this picture was taken, with the astronaut observer looking towards the west. Astronauts aboard the ISS see 16 sunrises and sunsets per day due to their high orbital velocity (greater than 28,000 km per hour). The multiple chances for photography are fortunate, as at that speed each sunrise or sunset event only lasts a few seconds! Image acquired with a Nikon D3 digital camera, and is provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Center.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:23, 8 January 2017 | | 4,256 × 2,829 (391 KB) | 127.0.0.1 (talk) | This spectacular image of sunset on the <a href="//commons.wikimedia.org/wiki/Indian_Ocean" title="Indian Ocean">Indian Ocean</a> was taken by astronauts aboard the <a href="//commons.wikimedia.org/wiki/International_Space_Station" title="International Space Station">International Space Station</a> (ISS). The image presents an edge-on, or limb view, of the Earth’s atmosphere as seen from <a href="//commons.wikimedia.org/wiki/Orbit" title="Orbit">orbit</a>. The Earth’s curvature is visible along the horizon line, or limb, that extends across the image from centre left to lower right. Above the darkened surface of the Earth, a brilliant sequence of colours roughly denotes several layers of the atmosphere. <p>Deep <a href="//commons.wikimedia.org/wiki/Orange_(color)" title="Orange (color)">oranges</a> and <a href="//commons.wikimedia.org/wiki/Category:Yellow" title="Category:Yellow">yellows</a> appear in the troposphere, which extends from the Earth’s surface to 6–20 km high. This layer contains over 80 percent of the mass of the atmosphere and almost all of the <a href="//commons.wikimedia.org/wiki/Water" title="Water">water</a> vapour, <a href="//commons.wikimedia.org/wiki/Cloud" title="Cloud">clouds</a>, and precipitation. Several dark cloud layers are visible within this layer. Variations in the colours are due mainly to varying concentrations of either clouds or aerosols (airborne particles or droplets). The <a href="//commons.wikimedia.org/wiki/Category:Pink" title="Category:Pink">pink</a> to <a href="//commons.wikimedia.org/wiki/Category:White" title="Category:White">white</a> region above the clouds appears to be the stratosphere; this atmospheric layer generally has little or no clouds and extends up to approximately 50 km above the Earth’s surface. Above the stratosphere, <a href="//commons.wikimedia.org/wiki/Blue" title="Blue">blue</a> layers mark the upper atmosphere (including the mesosphere, thermosphere, <a href="//commons.wikimedia.org/wiki/Category:Ionosphere" title="Category:Ionosphere">ionosphere</a>, and exosphere) as it gradually fades into the <a href="//commons.wikimedia.org/wiki/Category:Black" title="Category:Black">blackness</a> of outer <a href="//commons.wikimedia.org/wiki/Space" class="mw-redirect" title="Space">space</a>. </p> The ISS was located over the southern Indian Ocean when this picture was taken, with the astronaut observer looking towards the west. Astronauts aboard the ISS see 16 sunrises and sunsets per day due to their high orbital velocity (greater than 28,000 km per hour). The multiple chances for photography are fortunate, as at that speed each sunrise or sunset event only lasts a few seconds! Image acquired with a Nikon D3 digital camera, and is provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Center. |
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