What does HH stand for?
HH stands for "Herbig-Haro"
How to abbreviate "Herbig-Haro"?
"Herbig-Haro" can be abbreviated as HH
What is the meaning of HH abbreviation?
The meaning of HH abbreviation is "Herbig-Haro"
What does HH mean?
HH as abbreviation means "Herbig-Haro"
