Astronomy and planetology
by Necia H. Apfel · 1983
Popularity 2
Gives instructions for building or making theodolites, sundials, telescopes, spectroscopes, planetariums, and models of stars, and describes methods and times for observing the sun, moon, planets, stars, comets, and meteors.
Astronomical instrumentsExperimentsSpace sciencesAstronomyJuvenile literaturePlanetologyPlanetary science