The capas on own roots, and grown by forum members from seed

[marazz53]

Astrophytum capas (capricorne x asterias)

[AstrophytumCultivars.com]

Mario, this look more like AS x CAP:
"A nice plant obtained by controlled pollination of  ♀ Astrophytum asterias x ♂ Astrophytum capricorne"
http://www.cactus-art.biz/schede/ASTROPHYTUM/Astrophytum_hybrids/Astrophytum_hybrid_AS-CAP/Astrophytum_hybrid_AS-CAP.htm

[marazz53]

Hi ToKra, those seeds came from Kohres, Germany.

[AstrophytumCultivars.com]

Nevermind,
growers always use only one name, even if its ASxCAP or CAPxAS, but if we want to distinguish, we should use correct name as was on link i sent you in previous reply.

[AstrophytumCultivars.com]