Size comparison: Enceladus vs Moon

Size comparison between natural satellites: Enceladus and the Moon.

Enceladus is the 6th widest moon on the planet Saturn. This satellite is essentially covered with cool, clean ice, which allows it to reflect sunlight well and be clearly visible in space. It is the Cassini probe which allowed us to have the clearest pictures in 2005. We can see cryovolcanoes (ice volcanoes) at the level of the south pole, geysers of water vapor. Scientists believe that there is an ocean of liquid salt water below the surface of the South Pole with a thickness of about 10 km (6 miles). Enceladus evolves in the E ring of Saturn, which is the widest. This ring is made of ice dust. It would be Enceladus which generates this ice dust with its geysers which releases 200 kg of matter per second, part of which falls in the form of ice particles on the surface. Enceladus has the conditions required for the presence of microscopic extraterrestrial life.

Object	Enceladus	Moon
Type	Rocky satellite	Rocky satellite
Age	4.53 billion years	4.53 billion years
Diameter	513 km	3,474 km
Mean radius	252 km	1,737 km
Mass	1.08 × 1020 kg	7.34 × 1022 kg
Orbital period	1.37 days	27 days
Surface temperature (average)	75 K -198 °C -324 °F	220 K -53 °C -63 °F
Surface gravity	0.11 m/s²	1.6 m/s²
Mean density	1.6 g/cm3	3.3 g/cm3
Circumference	1,583 km	10,921 km
Surface area	798,648 km²	37 million km²
Volume	67.1 × 106 km3	2.19 × 1010 km3
Escape velocity	0.23 km/s	2.3 km/s
Average orbital speed	45.48 km/s	1.02 km/s
Semi major axis	237,948 km	384 thousands km
Inclination	0.009°	5.1°
Crust composition	91% water vapor, 4% nitrogen, 3.2% carbon dioxide, 1.7% methane	45% silica, 19% alumina, 14% lime, 10% iron, 2% titanium dioxide, 0.6% sodium oxide
Distance from the Milky Way center	27,200 light years	27,200 light years

Note: if one of the objects is not visible, it just means that it is too tiny to be displayed compared to the other one.