What does HGI stand for?
HGI stands for "Heliographic Inertial"
How to abbreviate "Heliographic Inertial"?
"Heliographic Inertial" can be abbreviated as HGI
What is the meaning of HGI abbreviation?
The meaning of HGI abbreviation is "Heliographic Inertial"
What does HGI mean?
HGI as abbreviation means "Heliographic Inertial"
