Galactic Coordinates · (ℓ, b) frame
unseel.com · IAU 1958 · Sgr A* · R₀ = 8.178 kpc
Origin Sgr A*
NGP Coma Berenices
stage
Galactic Center (ℓ=0,b=0)
Galactic equator
NGP (b=+90°)
Sun position
Unseel.com · Galactic Coordinates