◆ Saturn

  Saturn is the 6th planet in the solar system, a gas giant.

                                               
                                               
                                               
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  Type              Planet
  Magnitude         0.9
  Distance          8.76 AU, 73 light-minutes
  Apparent size     19″
  Rings             tilted 9° to us

  Known as
  Symbol            ♄

  Physical
  Radius            58,232 km, 9 Earths across
  Mass              95 Earths
  Density           0.69 g/cm3
  Surface gravity   10.4 m/s2, 1.06x Earth's
  Escape velocity   35.5 km/s
  Day               10h 39m
  Year              29.45 Earth years
  Axial tilt        26.7 degrees
  Albedo            0.47, reflects 47% of the light hitting it
  Temperature       134 K, -139 C
  Moons             274 confirmed, more than every other planet together

  More information about Saturn

  Saturn is probably the most famous planet in the solar system, known for
  its rings, which show up in almost anything with lenses in it, though
  how open they look changes over the planet's 29-year orbit as we see
  them from different angles: they were edge-on and nearly invisible in
  2025, and will be wide open again by the early 2030s. They are mostly
  made up of water ice, are two hundred and seventy thousand kilometres
  across, and in places are only about ten metres thick. The origin of its
  name is uncertain: the Romans connected it to the Latin serere, "to
  sow", which suited a god of agriculture but was worked out long after
  the name was already in use. Persian still calls it Keyvan کیوان, taken
  straight from the Babylonian Kajamanu, "the steady one" for how slowly
  it moves, a name that has been in use for about 2,500 years.

  Not settled: Probably Etruscan, from Satre, but the Roman derivation
  from sowing is a guess made after the fact.

  History
  Discovered      known since antiquity; the rings by Huygens, 1655
  First visited   Pioneer 11, 1979
  Missions        Pioneer 11        1979
                  Voyager 1 and 2   1980-1981
                  Cassini-Huygens   2004-2017

  Etymology
  From            Latin
  Reading         Saturnus
  Literally       unknown

  ┌ Babylon
  │ Kajamanu, the steady one
  │
  ├ Persia
  │ Keyvan, the same word, still in use
  │ کیوان
  │
  ├ Greece · 4th c. BC
  │ Kronos, before that Phainon, the shining
  │ Κρόνος
  │
  ├ Rome
  │ Saturnus
  │
  └ English · now
    Saturn

  where it is tonight:  skymap.sh/Saturn