New Occultation Movie And Dione Pictures - Unmanned Spaceflight.com

New Occultation Movie And Dione Pictures

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dilo

Sep 24 2005, 07:18 AM

Post #1

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Breathtaking Dione+Ring+Saturn images (RGB filters the wide angle one, false color R+CL+G the close up):

and amazing movie of Enceladus occulted by Tethys (if I'm not wrong)...

There is also a smaller moon passing in front of the rings

..it is Prometheus?

--------------------

I always think before posting! - Marco -

Replies (1 - 12)

Toma B View Member Profile	Sep 24 2005, 08:42 AM Post #2
Member Group: Members Posts: 648 Joined: 9-May 05 From: Subotica Member No.: 384	Beautiful!!! Just Beautifull!!!! -------------------- The scientist does not study nature because it is useful; he studies it because he delights in it, and he delights in it because it is beautiful. Jules H. Poincare My "Astrophotos" gallery on flickr...

dilo View Member Profile	Sep 24 2005, 09:24 AM Post #3
Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150	Thanks, Toma. I'm not sure about last animation frame timing, because Enceladus eclipse shouldn't be total and, based also on rings aspect, it was taken very later... -------------------- I always think before posting! - Marco -

edstrick View Member Profile	Sep 24 2005, 10:04 AM Post #4
Senior Member Group: Members Posts: 1870 Joined: 20-February 05 Member No.: 174	That's not Enceladus.. it's Tethys -- see Ithaca chasma and the craters. As Cassini gets closer, Dione's quite a bit closer to the spacecraft. and yes, that last pic is out of sequence.

edstrick

Sep 24 2005, 10:12 AM

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quick and dirty contrast stretch and sharpening. Tethys behind Dione.

Attached thumbnail(s)

elakdawalla View Member Profile	Sep 24 2005, 03:14 PM Post #6
Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454	QUOTE (dilo @ Sep 24 2005, 12:18 AM) There is also a smaller moon passing in front of the rings ..it is Prometheus? It's Pandora. Awesome. --Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.

volcanopele View Member Profile	Sep 24 2005, 11:13 PM Post #7
Senior Member Group: Moderator Posts: 3242 Joined: 11-February 04 From: Tucson, AZ Member No.: 23	For the NAC view of Dione against Saturn, the BL1 frame image is here: http://saturn.jpl.nasa.gov/multimedia/imag...4/N00039942.jpg -------------------- &@^^!% Jim! I'm a geologist, not a physicist! The Gish Bar Times - A Blog all about Jupiter's Moon Io

dilo

Sep 25 2005, 06:49 AM

Post #8

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Thanks, Jason. So this is the best true color match with previous wide-angle (maybe someone can obtain better results...):

I apologoze for previous completely misleading moons identifications in the movie... Is not easy to do "on the fly" and there are more skilled people than me, so thanks to all for the corrections!

--------------------

I always think before posting! - Marco -

mike View Member Profile	Sep 25 2005, 09:09 AM Post #9
Member Group: Members Posts: 350 Joined: 20-June 04 From: Portland, Oregon, U.S.A. Member No.: 86	Wow. Looking at an image like that, I get some vague notion of how huge Saturn really is. And the near-vacuum of space always makes for beautifully crystal clear views. It also makes a good desktop image.

ilbasso View Member Profile	Sep 28 2005, 02:11 PM Post #10
Member Group: Members Posts: 753 Joined: 23-October 04 From: Greensboro, NC USA Member No.: 103	These are the kinds of images that should be on the front page of every newspaper in the world, instead of pictures of human suffering or human idiocy. -------------------- Jonathan Ward Manning the LCC at http://www.apollolaunchcontrol.com

ljk4-1 View Member Profile	Jan 28 2006, 02:15 AM Post #11
Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430	Speaking of occultations, does anyone know if anyone on the Cassini team or any professional astronomers working with them imaged the occultation of a faint star by Saturn on January 25? http://www.iota-es.de/satocc_2006.html SATURN OCCULTS A FAINT STAR For observers in Europe, Africa, and Asia, an 8.2-magnitude star (SAO 98054) will be occulted by (passes behind) Saturn's ring system starting at about 18:45 Universal Time January 25th. The star reappears out from behind the planet itself around 20:55 UT. http://www.popastro.com/sections/occ/by_cancri.htm Just wondering if anyone had coordinated some kind of project to study the rings as the star went behind them and the ring data from Cassini. I did not see a mention of such a project in the latest status report, nor anything on the ALPO Saturn Section Web site: http://www.lpl.arizona.edu/~rhill/alpo/sat.html One amateur image of the event from the net so far: http://www.popastro.com/phpBB2/viewtopic.php?t=1920 -------------------- "After having some business dealings with men, I am occasionally chagrined, and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853

pat View Member Profile	Feb 1 2006, 03:06 PM Post #12
Junior Member Group: Members Posts: 76 Joined: 19-October 05 Member No.: 532	QUOTE (ljk4-1 @ Jan 28 2006, 03:15 AM) Speaking of occultations, does anyone know if anyone on the Cassini team or any professional astronomers working with them imaged the occultation of a faint star by Saturn on January 25? http://www.iota-es.de/satocc_2006.html SATURN OCCULTS A FAINT STAR For observers in Europe, Africa, and Asia, an 8.2-magnitude star (SAO 98054) will be occulted by (passes behind) Saturn's ring system starting at about 18:45 Universal Time January 25th. The star reappears out from behind the planet itself around 20:55 UT. http://www.popastro.com/sections/occ/by_cancri.htm Just wondering if anyone had coordinated some kind of project to study the rings as the star went behind them and the ring data from Cassini. I did not see a mention of such a project in the latest status report, nor anything on the ALPO Saturn Section Web site: http://www.lpl.arizona.edu/~rhill/alpo/sat.html One amateur image of the event from the net so far: http://www.popastro.com/phpBB2/viewtopic.php?t=1920 The UVIS and CIRS instruments on Cassini do observe stellar occultations by the rings. I can't remember offhand how many to date. The geometry for the occultation on Jan 25 you indicated, from Cassini's Point of View, was almost certainly such that the star was not occulted by the rings.

Rob Pinnegar View Member Profile	Feb 1 2006, 04:37 PM Post #13
Member Group: Members Posts: 509 Joined: 2-July 05 From: Calgary, Alberta Member No.: 426	QUOTE (edstrick @ Sep 24 2005, 04:04 AM) and yes, that last pic is out of sequence. Probably Enceladus is in Saturn's shadow in the last image.

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