HEALPix H=4, K=3 projection of the world. The lines on the map are a graticule of latitudes and longitudes.The grid used by HEALPix and its subdivision of the sphere, in four different grid refinements. Notice the similarity between the coarsest grid and the rhombic dodecahedron.
HEALPix (sometimes written as Healpix), an acronym for Hierarchical Equal Area isoLatitude Pixelisation of a 2-sphere, is an algorithm for pixelisation of the 2-sphere based on subdivision of a distorted rhombic dodecahedron, and the associated class of map projections.[1] The pixelisation algorithm was devised in 1997 by Krzysztof M. Górski at the Theoretical Astrophysics Center in Copenhagen, Denmark,[2] and first published as a preprint in 1998.[3][4]
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HEALPix (sometimes written as Healpix), an acronym for Hierarchical Equal Area isoLatitude Pixelisation of a 2-sphere, is an algorithm for pixelisation...
paraboloid mapping, the pyramid mapping, the octahedron mapping, and the HEALPix mapping. Reflection mapping is one of several approaches to reflection...
or a triangle. The projection is used in the polar areas as part of the HEALPix spherical projection, which is widely used in physical cosmology in making...
greater than its resolution. The map contains 3,145,728 pixels, and uses the HEALPix scheme to pixelize the sphere. The telescope also measured the CMB's E-mode...
includes many different spherical projections, including, for example, the HEALPix spherical projection widely used in observing the cosmic microwave background...
arbitrary at the system level). The polyhedron is also the basis for the HEALPix grid, used in cosmology for storing and manipulating maps of the cosmic...
universe Chronology of the universe Map generation and processing HEALPix cds-healpix-python Cosmological Boltzmann codes CMBFAST CAMB CMBEASY CLASS Cosmological...
also may map the sphere to a single diamond or a pair of squares. 1997 HEALPix Pseudocylindrical Equal-area Krzysztof M. Górski Hybrid of Collignon +...
subdivide the spherical surface into triangles of nearly equal shape and size. HEALPix Quadrilateralized spherical cube Geodesic grid Szalay, Alexander S.; Gray...
as two straight line segments, one from each pole to the equator. The HEALPix projection combines an equal-area cylindrical projection in equatorial...
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