The Three Heavens

ærial Alpha Centauri appear ascertained astronomers atmosphere axis beautiful belts bodies bright calculated called cause Centauri centre climate cloud colour comet conclusion condition constellation Creator dark density diameter disc discovery distance doubtless earth effect electricity evidence existence fact fluid globe glory gravity greater habitable heavens Herschel inferior planets infinite infinity inhabitants invisible John Herschel Jupiter less light and heat looking magnitude Mars mass material matter Mercury meteors millions of miles mind minor planets moon mountains moving mysterious nature nebulæ object observation oceans orbit parallax planet planetary present probably Proctor proper motion proportion referred regions remarkable revealed ring round satellites Saturn says seen shining sight Sir William Herschel solar system solid space specific gravity spectroscope star showers strange surface telescope temperature terrestrial theory thunder thunder-storm trade winds Uranus vapour vast Venus visible weight Williams wind wonderful