Images from Cassini’s Last Enceladus Plume Observation

Cassini's Last Enceladus Plume Observation

Cassini captured images of Saturn’s icy moon Enceladus for 14 hours, showing the moon’s night side. The perspective of the moon shifted during the sequence, with the exposure time changing halfway through to reveal fainter details and background stars. Credit: NASA/JPL-Caltech/Space Science Institute

Using images from the last dedicated observation of the Enceladus plume by NASA’s Cassini Spacecraft, astronomers put together this short movie sequence.

The images were obtained over approximately 14 hours as Cassini’s cameras stared at the active, icy moon. The view during the entire sequence is of the moon’s night side, but Cassini’s perspective Enceladus shifts during the sequence. The movie begins with a view of the part of the surface lit by reflected light from Saturn and transitions to completely unilluminated terrain. The exposure time of the images changes about halfway through the sequence, in order to make fainter details visible. (The change also makes background stars become visible.)

The images in this movie sequence were taken on August 28, 2017, using Cassini’s narrow-angle camera. The images were acquired at a distance from Enceladus that changed from 684,000 to 539,000 (1.1 million to 868,000 kilometers). Image scale changes during the sequence, from 4 to 3 miles (7 to 5 kilometers) per pixel.

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1 Comment on "Images from Cassini’s Last Enceladus Plume Observation"

  1. I truly enjoyed the science from this spectacular probe from its beginning to it’s end

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