Nociones de astronomíade Lockyer, Norman SirMateriasAstronomyEdiciones (1)Nociones de astronomía (1879)D. Appleton y compañía · españolMás obras de Lockyer, Norman SirElements of astronomyThe chemistry of the sunIndividual observations of the lines widened in sunspot spectra made at the Solar Physics Observatory, South Kensington, during the period November 12th, 1879, to December 31st, 1897
Individual observations of the lines widened in sunspot spectra made at the Solar Physics Observatory, South Kensington, during the period November 12th, 1879, to December 31st, 1897