Acronym	hep
TOCID symbol	(7)P
Name	heptagonal prism
	©
Circumradius	sqrt[1+1/sin2(π/7)]/2 = 1.256179
Vertex figure	[42,7]
General of army	(is itself convex)
Colonel of regiment	(is itself locally convex)
Dihedral angles	between {4} and {4}:   180° 5/7 = 128.571429° between {4} and {7}:   90°
Face vector	14, 21, 9
Confer	general prisms: n-p   n/d-p   general polytopal classes: segmentohedra
External links

As abstract polytop hep is isomorphic to ship, thereby replacing convex heptagons by heptagrams with winding number 2. – It likewise is isomorphic to giship, thereby replacing convex heptagons by heptagrams with winding number 3.

Incidence matrix according to Dynkin symbol

x x7o

. . . | 14 | 1  2 | 2 1
------+----+------+----
x . . |  2 | 7  * | 2 0
. x . |  2 | * 14 | 1 1
------+----+------+----
x x . |  4 | 2  2 | 7 *
. x7o |  7 | 0  7 | * 2