Rings And Moons, A little picture Options

[Guest_Sunspot_*]

it might be a problem with the JPL RAW site...there's very little being posted at all at the moment (maybe they just aren't taking many pics at the moment), but some of the links to the pictures are broken too.

[volcanopele]

it might be a problem with the JPL RAW site...there's very little being posted at all at the moment (maybe they just aren't taking many pics at the moment), but some of the links to the pictures are broken too.

This has nothing to do with the RAW images, this is about the image release...

[Guest_BruceMoomaw_*]

A major new find, just announced on Jason's blog: Cassini has found the tiny moon responsible for the Keeler Gap:
http://volcanopele.blogspot.com/2005/05/ne...te-s-2005-s-1.h
tml .

Just as with Pan in the Encke Gap, they were confident it was there on the grounds of indirect observations of its gravity wake in the Gap's edges -- and, sure enough, here it is.

[Guest_BruceMoomaw_*]

Let's try that URL again:

http://volcanopele.blogspot.com/2005/05/ne...s-2005-s-1.html

[Guest_BruceMoomaw_*]

OK, let's try it a third time:

http://volcanopele.blogspot.com/2005/05/ne...s-2005-s-1.html

[volcanopele]

A major new find, just announced on Jason's blog: Cassini has found the tiny moon responsible for the Keeler Gap:
http://volcanopele.blogspot.com/2005/05/ne...te-s-2005-s-1.h
tml . 

Just as with Pan in the Encke Gap, they were confident it was there on the grounds of indirect observations of its gravity wake in the Gap's edges -- and, sure enough, here it is.

This is what has been discussed on this thread the last day or so. That post is based on Singing Badger's post of the IAU Cicrular and based what I could off of that.

[dilo]

It seems rather obvious in those images, why wasn't it discovered then instead of on May 1? Did everyone assume it was Pan like I did at first when looking for it in those images?

Great finding, Alan! I rimember these images taken almost 20 days ago; they belongs to a long sequence and I commented them on this thread (see http://www.unmannedspaceflight.com/index.p...dpost&p=8583)... However, I didn't noticed the moon, even if rather obvious, in fact
Anyway, based on these images, I made a little movie clearly showing the movement of the moon inside keeler Gap:

[Guest_BruceMoomaw_*]

Well, that's what I get for not monitoring all the threads properly.

[alan]

It seems rather obvious in those images, why wasn't it discovered then instead of on May 1? Did everyone assume it was Pan like I did at first when looking for it in those images?

Great finding, Alan! I rimember these images taken almost 20 days ago; they belongs to a long sequence and I commented them on this thread (see http://www.unmannedspaceflight.com/index.p...dpost&p=8583)... However, I didn't noticed the moon, even if rather obvious, in fact
Anyway, based on these images, I made a little movie clearly showing the movement of the moon inside keeler Gap:

I remembered the movie you made three weeks ago when I was looking for those image. I was thinking about how close it came to being discovered by an amatuer. Actually I remember seeing it back then (thinking thats just Pan, nothing to see here) and moving on to the next image because I was more interested in seeing Prometheus and Pandora.

[dilo]

I remembered the movie you made three weeks ago when I was looking for those image. I was thinking about how close it came to being discovered by an amatuer. Actually I remember seeing it back then (thinking thats just Pan, nothing to see here) and moving on to the next image because I was more interested in seeing Prometheus and Pandora.

Yes, about the same for me... maybe sometime we have too much informations in so few time, and we discard important things!
regards

[dilo]

Hey, guys, someone noticed this smaller object in the gap???

Yes, I know, could be sensor hotpixel, cosmic ray or even background star... but it seems to generate a secondary pattern of waves...
Jason, wath do tou think?

[alan]

It only shows up in one frame of the movie and there are no ripples on outside of the gap near it, probably a cosmic ray. I saw a few of these yesterday when I was looking for moons in images from last year, often in interesting places like in the cassini division, but none of them showed up in more than one image.

[dilo]

It only shows up in one frame of the movie and there are no ripples on outside of the gap near it, probably a cosmic ray. I saw a few of these yesterday when I was looking for moons in images from last year, often in interesting places like in the cassini division, but none of them showed up in more than one image.

Thanks alan... hey, my impression is that a furious amateur moon search is starting here!!!

[RedSky]

In this long exposure, there is a very faint ring well out (to the left) of the main rings.

http://saturn.jpl.nasa.gov/multimedia/imag...eiImageID=40944


Is that the G or E ring? Also, while it may just be a background star shining through, it almost looks like a clump (tiny moon?) embedded in that faint ring (at about the 8 o'clock position... lower left... from the very brightly overexposed moon just below the main rings.)

Also, I've noticed that these very long exposures tend to have broad extensions of light eminating out from the overexposed rings. Is that just some sort of lens flare, glare, or optical artifact.... or is it physical? (i.e., reflections of dust orbiting around Saturn far out, such as the dust in the plane of the solar system causes the zodiacal light.)

RedSky

[um3k]

I believe that is the G ring, RedSky.