18 lines
1.4 KiB
Text
18 lines
1.4 KiB
Text
This is an approximation to the HEALPix base pixelization, consisting of 12 equal-area polygons.
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Each polygon is specified by its four vertices, each of which consists of an azimuth and elevation, in degrees.
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unit d
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vertices 0 4
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0 90 45 0 0 48.189685104221 90 48.189685104221
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0 90 135 0 90 48.189685104221 180 48.189685104221
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0 90 225 0 180 48.189685104221 270 48.189685104221
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0 90 315 0 270 48.189685104221 0 48.189685104221
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0 48.189685104221 0 -48.189685104221 315 0 45 0
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90 48.189685104221 90 -48.189685104221 45 0 135 0
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180 48.189685104221 180 -48.189685104221 135 0 225 0
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270 48.189685104221 270 -48.189685104221 225 0 315 0
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45 0 0 -90 0 -48.189685104221 90 -48.189685104221
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135 0 0 -90 90 -48.189685104221 180 -48.189685104221
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225 0 0 -90 180 -48.189685104221 270 -48.189685104221
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315 0 0 -90 270 -48.189685104221 0 -48.189685104221
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