astral microtubule nucleation
The 'de novo' formation of an astral microtubule, in which tubulin heterodimers form metastable oligomeric aggregates, some of which go on to support formation of a complete microtubule.
GO:0030953
astral microtubule organization
is_a
GO:0051418
microtubule nucleation by microtubule organizing center
is_a
SPCC417.07c