More astrophysics illustrations

Astrophysics

Optical depth scale

Astrophysics

F8v star

Astrophysics

Active algol system

Astrophysics

Matter particles cluster

Astrophysics

Doppler broadened line

Astrophysics

Rectangular coordinate unit vector j

Astrophysics

Hydrogen halpha line

Astrophysics

Helium core isothermal