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Solar Mass Survey

In 2103, the Solar Mass Survey (SMS) defined sizes for all objects of note in the Sol System. Though the various planets, moons, and asteroids saw their masses change over the years as humans reshaped their home system to match their needs, The common units of measurement remained tied to the measurements taken in 2103.

This means, that when a planet is referred to as having a mass of 13Mj, that means it has thirteen times the mass of Jupiter in 2103 (Jupiter itself is now over 1.3Mj).

All of the planets were given mass measurements, but the ones most commonly used are:

  • Mj - Jupter's mass (used to measure most large gas giants)
  • Stellar Standard Mass, or MS - Sol's mass
  • Ms - Saturn's mass (used to measure most lighter gas giants -- not to be confused with Sol's mass, which is noted by a capital S)
  • Mn - Neptune's mass (used to measure most ice giants)
  • Em - Earth's mass (used to measure most terrestrial planets)
  • Mg - Ganymede's mass (used to measure most moons and smaller planetoids/dwarf planets)
  • Mc - Ceres' mass (used to measure most large asteroids)
  • MSs - Mass of the entire Sol System