Back Projecció de Hammer Catalan Hammer-Aitov-Projektion German Proyección de Hammer Spanish Hammerin projektio Finnish ハンメル図法 Japanese 함메르 도법 Korean Prujezziun da Hammer LMO Projectie van Aitoff-Hammer Dutch Хамерова пројекција Serbian
The Hammer projection is an equal-area map projection described by Ernst Hammer in 1892. Using the same 2:1 elliptical outer shape as the Mollweide projection, Hammer intended to reduce distortion in the regions of the outer meridians, where it is extreme in the Mollweide.