作者的書籍：Edwin Hubble - BookPine

Extra-galactic nebulae

Extra-galactic nebulae

Edwin Hubble

Extra-galactic Nebulae

Extra-galactic Nebulae

Edwin Hubble

Extra-galactic Nebulae

Extra-galactic Nebulae

Edwin Hubble

Nebula Kingdom

Nebula Kingdom

Edwin Hubble

THE PROBLEM OF THE EXPANDING UNIVERSE

THE PROBLEM OF THE EXPANDING UNIVERSE

Edwin Hubble

The observational approach to cosmology,

The observational approach to cosmology,

Edwin Hubble

EFFECTS OF RED SHIFTS ON THE DISTRIBUTION OF NEBULAE

EFFECTS OF RED SHIFTS ON THE DISTRIBUTION OF NEBULAE

Edwin Hubble

THE LUMINOSITY FUNCTION OF NEBULAE I. LUMINOSITY FUNCTION OF RESOLVED NEBULAE; II. LUMINOSITY FUNCTION AS INDICATED BY RESIDUALS

THE LUMINOSITY FUNCTION OF NEBULAE I. LUMINOSITY FUNCTION OF RESOLVED NEBULAE; II. LUMINOSITY FUNCTION AS INDICATED BY RESIDUALS

Edwin Hubble