Tethys and Dione

lostfisherman · Post #1by **lostfisherman** » 28.10.2004, 14:18

Something relatively normal too look at after tryng to guess the nature of those Titan pics.

Tethys replete with big crater (Oddyseus I think)

http://saturn1.jpl.nasa.gov/multimedia/ ... geID=26004

Streaky Dione

http://saturn1.jpl.nasa.gov/multimedia/ ... geID=26000

Evil Dr Ganymede · Post #2by **Evil Dr Ganymede** » 28.10.2004, 14:59

I think my brain is overloading from the torrent of cool images coming back from Cassini...

Michael Kilderry · Post #3by **Michael Kilderry** » 29.10.2004, 07:33

I think after all of the Titan images brought back from Cassini, it's nice to have my favourite moon Tethys in the spotlight for once. The big crater resembles an eyeball.

Michael Kilderry

Ynjevi · Post #4by **Ynjevi** » 29.10.2004, 16:14

Uhh... Somebody said Tethys?

tony873004 · Post #5by **tony873004** » 29.10.2004, 16:58

Tethys is very interesting for another reason. It holds 2 smaller moons captive in its L4 and L5 Lagrange points. Telesto and Calypso share an orbit with Tethys, orbiting Saturn 60 degrees ahead of and 60 degrees behind Tethys.

Evil Dr Ganymede · Post #6by **Evil Dr Ganymede** » 29.10.2004, 17:00

tony873004 wrote:Tethys is very interesting for another reason. It holds 2 smaller moons captive in its L4 and L5 Lagrange points. Telesto and Calypso share an orbit with Tethys, orbiting Saturn 60 degrees ahead of and 60 degrees behind Tethys.

I wonder if Cassini is going to image those - they're a bit out of the way...

The new Tethys images look nifty. The degree of topographic relaxation on the craters is interesting...

Evil Dr Ganymede · Post #7by **Evil Dr Ganymede** » 29.10.2004, 22:07

Here's the latest Cassini image:
http://saturn.jpl.nasa.gov/multimedia/i ... geID=26163

And the Celestia URL...
cel://PhaseLock/Sol:Cassini/Sol:Saturn:Tethys/2004-10-28T07:24:55.26796?x=438hzFpT252KDA&y=A/GMaB9BkbX//////////w&z=G49z/+DAlWF6/////////w&ow=0.723691&ox=0.502820&oy=-0.230705&oz=0.412576&select=Sol:Saturn:Tethys&fov=0.461936&ts=1.000000<d=0&rf=37651&lm=86

lostfisherman · Post #8by **lostfisherman** » 31.10.2004, 15:58

I'm not sure this is worth its own thread, so I'll tack it here. An interesting picture of Saturns F ring, buried within the raw imaging site.

http://saturn1.jpl.nasa.gov/multimedia/ ... geID=26447

Ynjevi · Post #9by **Ynjevi** » 31.10.2004, 18:29

lostfisherman wrote:I'm not sure this is worth its own thread, so I'll tack it here. An interesting picture of Saturns F ring, buried within the raw imaging site.

Yeah, I spotted that too.

The irregular arc is probably a "crescent" of Prometheus, you can see material streaming to it from the F-ring. Same phenomenon was spotted after the Saturn Orbit Insertion.

Evil Dr Ganymede · Post #10by **Evil Dr Ganymede** » 01.11.2004, 06:19

I noticed that too... I was wondering what that was...!