More astrophysics illustrations

Astrophysics

Angle phi

Astrophysics

Relative flux vs wavelength plot

Astrophysics

Brown dwarf

Astrophysics

Euclid space telescope

Astrophysics

Narrow spectrograph slit

Astrophysics

Infrared region

Astrophysics

Planet 51 pegasi b

Astrophysics

Lyman alpha forest spectrum