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It was believed that the cutoff for round objects is somewhere between 100 km and 200 km in radius if they have a large amount of ice in their makeup; [1] however, later studies revealed that icy satellites as large as Iapetus (1,470 kilometers in diameter) are not in hydrostatic equilibrium at this time, [2] and a 2019 assessment suggests that ...
Saturn is the only planet of the Solar System that is less dense than water—about 30% less. [39] Although Saturn's core is considerably denser than water, the average specific density of the planet is 0.69 g/cm 3, because of the atmosphere. Jupiter has 318 times Earth's mass, [40] and Saturn is 95 times Earth's mass. [6]
Saturn – 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 . [ 1 ] [ 2 ] Although only one-eighth the average density of Earth, with its larger volume Saturn is just over 95 times more massive.
Mimas, also designated Saturn I, is the seventh-largest natural satellite of Saturn.With a mean diameter of 396.4 kilometres or 246.3 miles, Mimas is the smallest astronomical body known to be roughly rounded in shape due to its own gravity.
10 cm = 1 dm – diameter of the human cervix upon entering the second stage of labour; 11 cm = 1.1 dm – length of an average potato in the US; 13 cm = 1.3 dm – body length of a Goliath birdeater; 15 cm = 1.5 dm – approximate size of largest beetle species; 19 cm = 1.9 dm – length of a banana
Saturn imaged in 2021 through a 6" telescope, dimly showing the polar hexagon. Saturn's polar hexagon was discovered by David Godfrey in 1987 [14] from piecing together fly-by views from the 1981 Voyager mission, [15] [16] and was revisited in 2006 by the Cassini mission.
Phoebe, at 213 ± 1.4 km in diameter, is by far the largest of Saturn's irregular satellites. [30] It has a retrograde orbit and rotates on its axis every 9.3 hours. [87] Phoebe was the first moon of Saturn to be studied in detail by Cassini, in June 2004; during this encounter Cassini was able to map
Saturn (6.1 m (20 ft) in diameter) is placed outside the old observatory of Anders Celsius, in the so-called Celsius Square, in the centre of Uppsala, 73 km (45 mi) from the Globe. Inaugurated during the International Year of Astronomy , [ 6 ] the model is a mat with a picture of Saturn, but will eventually grow to crown a school planetarium in ...