| R2.C(1/4) |
Robert P. Munafo, 1998 Jan 6.
| R2-Name: | R2.C(1/4) |
| Abbrev: | R.C(4) |
| Colloq.: | Quad Spiral Valley |
| Coords: | center = 0.274 + 0.482 i, size = 0. |
R2.C(1/4) is the R2-Name of the two cusps between R2a and R2.1/4a. The corresponding cusps near R2.3/4a are the same except for the vertical reflection. The colloquial name "quad spiral valley" comes from the quadruple spirals that are prominent in the filaments of the mu-atoms on the child side of the cusp.
%%%need pictures