More astrophysics illustrations

Astrophysics

Neutron star magnetic dipole field

Astrophysics

H ii region

Astrophysics

Coordinate distance symbol

Astrophysics

Cool star

Astrophysics

Positive curvature universe

Astrophysics

Retrograde moving object

Astrophysics

Radial horizon distance

Astrophysics

Saha equation