Enlaces Institucionales


4.23 Astronomical terms

Capitalize the names of planets and other astronomical bodies and configurations. Capitalize earth, sun and moon only when they are mentioned in relation to other planets or heavenly bodies:

  • Venus
  • the Great Bear
  • The sun shines brightly.
  • Mercury is closer than the Earth to the Sun.

Do not capitalize generic words forming part of the name of a celestial object:

  • Halley’s comet
  • the rings of Saturn