Assertion: andromeda galaxy's companion | /r/HasProperty | discovered in november
Facets:
value: by le gentil
type: OTHER
Source sentences:
text: The companion [Messier 32] was discovered in November, 1749, by Le Gentil, and was described by him as being about an eighth of the size of the principal one; he adds, “elle m’a paru exactement de la même densité que l’ancienne.