constellation vs major planet

constellation

noun
  • Any of the 88 regions of the sky officially recognized by the IAU, including all stars and celestial bodies in the region. 

  • A configuration or grouping. 

  • A fleet of satellites of the same purpose (such as the set of GPS satellites, or Iridium satcom fleet). 

  • An asterism, an arbitrary formation of stars perceived as a figure or pattern, or a division of the sky including it, especially one officially recognised by astronomers. 

  • An image associated with a group of stars. 

  • A wide, seemingly unlimited assortment. 

  • A network of connections that exists between people who are in polyamorous relationships, for example between one person, their partner, and that person's partner. 

  • The configuration of planets at a given time (notably of birth), as used for determining a horoscope. 

major planet

noun
  • Any of the 8 celestial bodies which orbit the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune (a celestial body that fits the 2006 IAU definition of planet). 

  • Any planet that is significantly larger and more massive than Earth, containing large amounts of hydrogen and helium, such as Jupiter and Neptune. 

How often have the words constellation and major planet occurred in a corpus of books? (source: Google Ngram Viewer )