The Gall orthographic projection is a cylindrical equal-area projection with standard parallel of 
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Gall Orthographic Projection
See also
Balthasart Projection, Behrmann Cylindrical Equal-Area Projection, Cylindrical Equal-Area Projection, Equal-Area Projection, Lambert Azimuthal Equal-Area Projection, Peters Projection, Stereographic Projection, Tristan Edwards ProjectionExplore with Wolfram|Alpha
References
Dana, P. H. "Map Projections." http://www.colorado.edu/geography/gcraft/notes/mapproj/mapproj_f.html.Gall, J. "Uses of Cylindrical Projections for Geographical, Astronomical, and Scientific Purposes." Scottish Geographical Mag. 1, 119-123, 1885.Snyder, J. P. Map Projections--A Working Manual. U. S. Geological Survey Professional Paper 1395. Washington, DC: U. S. Government Printing Office, p. 76, 1987.Referenced on Wolfram|Alpha
Gall Orthographic ProjectionCite this as:
Weisstein, Eric W. "Gall Orthographic Projection." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/GallOrthographicProjection.html