M♁
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Translingual
[edit]Alternative forms
[edit]- The M is not always italic.
Etymology
[edit]- M (mass) and subindex ♁ (Earth). The use of ⟨M♁⟩ rather than ⟨M🜨⟩ seems particularly common in German-language texts.
Symbol
[edit]M♁
- (astronomy) Earth mass: a unit of measurement, equal to the mass of planet Earth, which is 6×1024 kg or 3×10−6 M☉.
- The dynamically cold planetesimal disk was 35 M♁, with an inner edge at 15.5 AU and an outer edge at 34 AU.
- (sum of parts) The mass of the Earth specifically.