Acronym ...
Name hyperbolic order 7 heptagram tiling
 
Circumradius sqrt[(1-cos2(π/7))/(1-2 cos(π/7))] = 0.484510 i
Vertex figure [(7/2)7]
Dual o7/2o7x
Confer
related tesselations:
o3o7x  

This hyperbolic star tiling can be obtained as a stellation of o3o7x. Every part of the tiling will be covered twice: by the convex central part and by the pointy ones.


Incidence matrix according to Dynkin symbol

x7/2o7o   (N → ∞)

.   . . | 2N |  7 |  7
--------+----+----+---
x   . . |  2 | 7N |  2
--------+----+----+---
x7/2o . |  7 |  7 | 2N

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