M🜨

Translingual

Alternative forms

• M_⊕ (a common typographic substitution, as mathematical ⟨⊕⟩ was supported by Unicode a decade before astronomical ⟨🜨⟩)
• The M is not always italic.

Etymology

• M (mass) and subindex 🜨 (Earth)

Symbol

M_🜨

1. (astronomy) Earth mass: a unit of measurement, equal to the mass of planet Earth, which is 6×10²⁴ kg or 3×10⁻⁶ M_☉.

   For Saturn, […] the total mass of heavy elements is between 13 and 28 M_🜨.

   Jupiter formation required a core mass of ∼ 21 M_🜨.

2. (sum of parts) The mass of the Earth specifically.

Synonyms

• M_♁
• (English) M_E