File:Fire In The Sky - Flickr - NASA on The Commons.jpg
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Summary[edit]
DescriptionFire In The Sky - Flickr - NASA on The Commons.jpg |
Description Astronauts on the International Space Station (ISS) used a digital camera to capture several hundred photographs of the aurora australis, or “southern lights,” while passing over the Indian Ocean on September 17, 2011. If you click on the movie linked above, you can see the flowing ribbons and rays below as the ISS passed from south of Madagascar to just north of Australia between 17:22 and 17:45 Universal Time. Solar panels and other sections of the ISS fill some of the upper right side of the photograph. Auroras are a spectacular sign that our planet is electrically and magnetically connected to the Sun. These light shows are provoked by energy from the Sun and fueled by electrically charged particles trapped in Earth’s magnetic field, or magnetosphere. In this case, the space around Earth was stirred up by an explosion of hot, ionized gas from the Sun—a coronal mass ejection—that left the Sun on September 14, 2011. The pressure and magnetic energy of the solar plasma stretches and twists the magnetic field of Earth like rubber bands, particularly in the tail on the night side. This energizes the particles trapped in our magnetic field; that energy is released suddenly as the field lines snap the particles down the field lines toward the north and south magnetic poles. Fast-moving electrons collide with Earth’s upper atmosphere, transferring their energy to oxygen and nitrogen molecules and making them chemically “excited.” As the gases return to their normal state, they emit photons, small bursts of energy in the form of light. The color of light reflects the type of molecules releasing it; oxygen molecules and atoms tend to glow green, white or red, while nitrogen tends to be blue or purple. This ghostly light originates at altitudes of 100 to 400 kilometers (60 to 250 miles). Image Number ISS029-E-06020 Date: September 17, 2011 |
Date | Taken on 17 September 2011, 17:30 |
Source | Fire In The Sky |
Author | NASA on The Commons |
Permission (Reusing this file) |
NASA on The Commons @ Flickr Commons |
Flickr tags InfoField | earth science , earth observatory , iss |
Licensing[edit]
This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as: No known copyright restrictionsNo restrictionshttps://www.flickr.com/commons/usage/false
More information can be found at https://flickr.com/commons/usage/. Please add additional copyright tags to this image if more specific information about copyright status can be determined. See Commons:Licensing for more information. |
This image was originally posted to Flickr by NASA on The Commons at https://flickr.com/photos/44494372@N05/15473869590. It was reviewed on 22 January 2024 by FlickreviewR 2 and was confirmed to be licensed under the terms of the No known copyright restrictions. |
22 January 2024
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current | 04:06, 22 January 2024 | 1,440 × 960 (312 KB) | Red panda bot (talk | contribs) | In Flickr Explore: 2024-01-15 |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
---|---|
Camera model | NIKON D3S |
Exposure time | 13/10 sec (1.3) |
F-number | f/2.8 |
ISO speed rating | 12,800 |
Date and time of data generation | 17:30, 17 September 2011 |
Lens focal length | 24 mm |
User comments | NASA 2008336 |
Width | 4,256 px |
Height | 2,832 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Adobe Photoshop CS5 Macintosh |
File change date and time | 14:02, 26 September 2011 |
Exposure Program | Manual |
Exif version | 2.21 |
Date and time of digitizing | 17:30, 17 September 2011 |
APEX shutter speed | −0.378512 |
APEX aperture | 2.970854 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Subject distance | 4,294,967,295 meters |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Color space | Uncalibrated |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 24 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 2008336 |
Lens used | 14.0-24.0 mm f/2.8 |
Date metadata was last modified | 10:02, 26 September 2011 |
Rating (out of 5) | 0 |
Unique ID of original document | xmp.did:4392DC7BEAE2E0118223F0CE1B7FB864 |
IIM version | 29,599 |