CICLOPS: Cassini Imaging Central Laboratory for OPerationS

One Special Day in the Life of Planet Earth
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The cameras on NASA's Cassini spacecraft captured this rare look at Earth and its moon from Saturn orbit on July 19, 2013. Taken while performing a large wide-angle mosaic of the entire Saturn ring system, narrow-angle camera images were deliberately inserted into the sequence in order to image Earth and its moon. This is the second time that Cassini has imaged Earth from within Saturn's shadow, and only the third time ever that our planet has been imaged from the outer solar system.

Earth is the blue point of light on the left; the moon is fainter, white, and on the right. Both are seen here through the faint, diffuse E ring of Saturn. Earth was brighter than the estimated brightness used to calculate the narrow-angle camera exposure times. Hence, information derived from the wide-angle camera images was used to process this color composite.

Both Earth and the moon have been increased in brightness for easy visibility; in addition, brightness of the Moon has been increased relative to the Earth, and the brightness of the E ring has been increased as well.

Images taken using red, green and blue spectral filters were combined to create this natural color view. (The accompanying wide-angle frame can be found here: PIA17171.) The images were obtained by the Cassini spacecraft cameras on July 19, 2013 at a distance of approximately 898.414 million miles (1.445858 billion kilometers) from Earth. Image scale on Earth is 5,382 miles (8,662 kilometers) per pixel. The illuminated areas of neither Earth nor the moon are resolved here. Consequently, the size of each "dot" is the same size that a point of light of comparable brightness would have in the narrow angle camera.

Also included here is a close-up view of Earth and Moon, magnified by a factor of 5.

The first image of Earth captured from the outer solar system was taken by NASA's Voyager 1 in 1990 and famously titled "Pale Blue Dot" (PIA00452). Sixteen years later, in 2006, Cassini imaged the Earth in the stunning and unique mosaic of Saturn called "In Saturn's Shadow-The Pale Blue Dot" (PIA08329). And, seven years further along, Cassini did it again in a coordinated event that became the first time that Earth's inhabitants knew in advance that they were being imaged from nearly a billion miles (nearly 1.5 billion kilometers) away. It was the also the first time that Cassini's highest-resolution camera was employed so that Earth and its moon could be captured as two distinct targets.

The Cassini Solstice Mission is a joint United States and European endeavor. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter was designed, developed and assembled at JPL. The imaging team consists of scientists from the US, England, France, and Germany. The imaging operations center and team lead (Dr. C. Porco) are based at the Space Science Institute in Boulder, Colo.

For more information about the Cassini Solstice Mission visit http://ciclops.org, http://www.nasa.gov/cassini and http://saturn.jpl.nasa.gov.

Credit: NASA/JPL-Caltech/SSI
Released: July 22, 2013 (PIA 14949, 17170)
Image/Caption Information
  One Special Day in the Life of Planet Earth
PIA 14949

Avg Rating: 9.64/10

Full Size 984x984:
JPEG 203 KB
PNG 839 KB
TIFF 900 KB

 

One Special Day in the Life of Planet Earth
PIA 17170

Avg Rating: 9.29/10

Magnified Full Size 941x826:
JPEG 122 KB
PNG 320 KB


Alliance Member Comments
sustayne (Nov 12, 2013 at 10:59 AM):
Why be kind to another? We are all we have. See for yourself.
NeKto (Jul 23, 2013 at 3:33 PM):
on the same day Cassini took this image, its cousin Messenger took an image of us from its orbit around Mercury. (see A.P.O.D. for 2013 July 23)
what a time we live in.

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