asterism englannista suomeksi
An unofficial constellation (small group of stars that forms a visible pattern).
''The Big Dipper, Summer Triangle, and Orion's Belt are asterisms.''
1825, Geo G. Carey, ''Astronomy, as it is known at the present day'', London, p. 66 f.:
- Of the constellations, or asterisms. ... It therefore became necessary to adopt a more general method of distinguishing them. This was accomplished by portioning out the heavens into imaginary figures, of men, birds, fishes, &c. called Constellations or Asterisms.