Saturn Megaoverlay 2020 UPDATE

Saturn is the sixth planet from the Sun and the second largest in the Solar System, after Jupiter. It is a gas giant with an average radius about nine times that of Earth. Although only one-eighth the average density of Earth, with its larger volume Saturn is just over 95 times more massive. Saturn is named after the Roman god of agriculture, its astronomical symbol (♄) represents the god's sickle.

Saturn's interior is probably composed of a core of iron–nickel and rock (silicon and oxygen compounds). This core is surrounded by a deep layer of metallic hydrogen, an intermediate layer of liquid hydrogen and liquid helium, and finally outside the Frenkel line a gaseous outer layer. Saturn has a pale yellow hue due to ammonia crystals in its upper atmosphere. Electrical current within the metallic hydrogen layer is thought to give rise to Saturn's planetary magnetic field, which is weaker than Earth's, but has a magnetic moment 580 times that of Earth due to Saturn's larger size. Saturn's magnetic field strength is around one-twentieth the strength of Jupiter's. The outer atmosphere is generally bland and lacking in contrast, although long-lived features can appear. Wind speeds on Saturn can reach 1,800 km/h (500 m/s), faster than on Jupiter, but not as fast as those on Neptune.

Saturn has a prominent ring system that consists of nine continuous main rings and three discontinuous arcs and that is composed mostly of ice particles with a smaller amount of rocky debris and dust. Sixty-two moons are known to orbit Saturn, of which fifty-three are officially named. This does not include the hundreds of moonlets comprising the rings. Titan, Saturn's largest and the Solar System's second largest moon, is larger than the planet Mercury and is the only moon in the Solar System to have a substantial atmosphere.

I give you Saturn and 12 of it's moons.

Saturn Megaoverlay.kmz (298.88 KB)

This overlay set contains

Saturn
Medium Resolution cloud overlay

Prometheus
Tiny Resolution Shaded Relief
Low Resolution Topography

Epimetheus
High Resolution Voyager image overlay
Low Resolution Topography

Janus
Low Resolution Cassini
Tiny Resolution Voyager Shaded Relief
Low Resolution Voyager Topography
Low Resolution Voyager Image

Mimas
Super Resolution Cassini
Low Resolution Voyager airbrush

Enceladus
Mega Resolution Cassini B/W (2016)
Mega Resolution Cassini Color (2014)
Low resolution Voyager airbrush
High resolution water ice grain size
Low resolution crater distribution
Low resolution geology
Tiny resolution topography
Tiny resolution "snowfall"

Tethys
Mega Resolution Cassini
Low Resolution Voyager airbrush

Dione
Mega Resolution Cassini
Medium Resolution Voyager airbrush
High resolution water ice abundance
Tiny resolution topography

Rhea
Mega Resolution Cassini
Low Resolution Voyager airbrush
High resolution water ice abundance

Titan
Mega resolution RADAR SAR + Hyper Resolution Huygens landing site.
High resolution ISS mosaic
Super Resolution VIMS Infrared
Medium resolution:
Dune direction
Geology
Cloud Coverage
Low resolution:
Hubble
Emissivity
Tiny Resolution
Observed Scattering
Simulated scattering
Atmosphere (turn on Sun and Atmosphere to view actual color with haze and shading effect as seen in image below)

Hyperion
Medium Resolution Cassini
Low resolution Voyager Shaded relief
Medium resolution Voyager mosaic
Low Resolution Voyager Topography

Iapetus
Super Resolution Cassini
High Resolution Voyager airbrush

Phoebe
Medium Resolution Cassini

Placenames for all but Prometheus and Saturn (which have none)

Over 500 images from NASA's planetary Photojournal

Next up, Uranus and Neptune, which shouldn't take long since they weren't explored much like Jupiter and Saturn.

I went a little overboard with Titan, probably because it's one of the most interesting Earth-like places in the solar system. It has lakes, rivers, and seas but consisting of stuff that would blow up if enough oxygen was added. It has mountains, hills, dunes, plateaus, craters, and even volcanoes that are made of ice instead of rock. It's atmosphere is the most Earthlike in pressure and Nitrogen make-up and even has rain and wind while being far colder. Plus many places on it are named after characters and places from Middle Earth.

I didn't like the Titan Haze map provided by JPL because it looks way too red (from Voyager images) but it's the only one there is.
JPL map
But then an idea came to my mind
By using color shades I changed the color to the now more familiar tan color while adding the haze layers and making it look more like the image here.

You can see it like this by going turning on the last Overlay of Titan "Atmosphere" and having Sun and Atmosphere turned on.
The color of the upper haze often varies in Cassini images from sunlight angles but this is roughly an average color.
It may not be Celestia but I think it's amazingly realistic when GE's limitations are considered.

Turn off photorealistic atmospheric rendering or else it looks blueish green like Uranus instead.

For the other moons and Saturn atmosphere should be turned off because the former have only tenuous atmospheres and Saturn's is differently colored.

Around the Huygens landing site I added mosaics that further the resolution around there showing the much greater detail obtained from the Huygens decent imager.
Finding Beagle 2 on Mars earlier helped me figure how to locate the Huygens mosaics and place them correctly.

I might consider doing atmospheric effects in the Grand Tour for Venus and Triton next and Pluto too if it's like Triton.

Originally I intended to use true color maps of the moons but I changed my mind midway through it after noticing how dull that would make them all grey and decided to process huge false color ones into sizes GE could use. Unfortunately the color map for Enceladus in particular was too big to even open so I had to use a somewhat older B/W USGS one instead with white tinting.
Edit
I have gotten help on finding out a way to get the color Enceladus map the correct size and both Enceladus along with Ganymede will be in color in the Grand Tour.

2020 UPDATE!!!
Nomenclature updates for Titan and Enceladus. Photojournal updates too. The overlays for Enceladus, Dione, Tethys, Rhea, Titan, and Iapetus have been upsized since I don't have an 8K resolution limit anymore. I created a 16K color map of Titan combining ISS and RADAR imagery. Every one of the moons got an additional map or multiple ones as well. The Titan map is so detailed now you can actually see the individual sand dunes on the surface!!! I was unable to include image insets due to the fact that whenever I attempted to add them, they ended up improperly scaled and distorted. I think this has to do with the fact that on smaller bodies, displacements of oblique images by orbiting craft are exaggerated. The only object I could do the insets on is Titan but the maps I could find do not have radar coverage past January 2015, making it impossible to figure out where to place said inset images. Nevertheless, have fun exploring the Titan RADAR map I made. It's fun to look at.

Sorry if the Titan overlay is broken. When I replaced the image in Flickr, it made a new link for it and deleted the old one. I made a cleaned up version of the map with a higher resolution version of the ISS background map that I found. Now there are no awkward seams at where the 2 maps interconnected anymore and the lower resolution areas are slightly higher resolution.