* Astronomy

Blobrana · L

RE: Tethys

Blobrana · L

The IAU has approved 33 new names for surface features on Tethys. The new names include 31 craters, one chasma, and one montes.

Read more

Blobrana · L

The Cassini spacecraft looks down onto the northern latitudes on Tethys.
The impact basin Odysseus can also be seen.

Expand (29kb, 1024 x 768)
Credit NASA

The image was taken in visible light with the Cassini spacecraft narrow-angle camera on March 11, 2008when the probe was approximately 765,000 kilometres from Tethys and at a Sun-Tethys-spacecraft, or phase, angle of 97 degrees.

Blobrana · L

One of Saturn's moons may once have harboured a liquid ocean beneath its icy surface, scientists have told a major conference in Houston, Texas.
Tethys is a mid-sized satellite with a density close to that of pure ice.
But a large valley system visible today must have formed when the crust was being heated and under great strain.

Read more

Blobrana · L

Tethys map

Blobrana · L

RE: Tethys

Blobrana · L

The view of Saturn's moon Tethys was obtained by the Cassini spacecraft on Aug. 30, 2007, from a distance of approximately 97,000 kilometres and at a sun-Tethys-spacecraft, or phase, angle of 51 degrees.

Expand (375kb, 2183 x 2183)
Credit: NASA/JPL/Space Science Institute

This mosaic was assembled from four clear filter, narrow-angle camera images. The view is an orthographic projection centred on 3 degrees south latitude, 119 degrees west longitude and has a resolution of 572 meters per pixel. An orthographic view is most like the view seen by a distant observer looking through a telescope. North is up.

Blobrana · L

The view of Saturn's moon Tethys was obtained by the Cassini spacecraft on June 29, 2007, from a distance of approximately 38,000 kilometres and at a Sun-Tethys-spacecraft, or phase, angle of 152 degrees.

Expand (263kb, 2143 x 3929)
Credit: NASA/JPL/Space Science Institute

This mosaic was assembled from four clear filter, narrow-angle camera images, with low resolution, wide-angle camera data filling a small gap in coverage. The view is an orthographic projection and has a resolution of 211 metres per pixel. An orthographic view is most like the view seen by a distant observer looking through a telescope. North is up.

Blobrana · L

This image of Tethys shows a band of slightly darker terrain at its equator.
The crater Odysseus is on the terminator.
The lit terrain seen here is on the leading hemisphere of Tethys. North is up.

Expand (58kb, 1024 x 768)
Credit: NASA/JPL/Space Science Institute

The image was taken in visible light with the Cassini spacecraft wide-angle camera on Aug. 29, 2007, when the spacecraft was approximately 56,000 kilometres away.

Blobrana · L

This (already posted) image of the leading hemisphere of Tethys was taken in visible light with the Cassini spacecraft narrow-angle camera on July 21, 2007, when it was approximately 452,000 kilometres away, and at a Sun-Tethys-spacecraft angle of 54 degrees.

Expand (66kb, 1024 x 768)
Credit: NASA/JPL/Space Science Institute

North is up and rotated 15 degrees to the left.