| Show TALKS ON ASTRONOMY i AT greenwich the moon has been ob with scarcely any intermission j arm celebrated star algol has a di ameter of miles or times greater than our sun THE sun is tremendously large it is equal to earths butr owing to its small density its weight equals that of only earths it has been many and probably most of tha stars arc suns greater by far than our sun as rivers of both light and heat anc sun gives times as much I 1 light as the full moon times as much as the brightest star in the sky and times as much as all the stars in the heavens combined SOME of the seas which the telescope reveals on the planet mars have quite suddenly become crossed by straight lines so straight and parallel that some astronomers have thought them to be bridges constructed upon an enormous scale oy highly civilized beings advance in the improvement of the telescope has brought to our knowledge still closer double stars the distance being so magnified as to become visible and ceasur ao leBut the spectroscope has revealed to us a double star so close that no telescope will show the distance between he two stars agree upon three motions of the earth the rotation on its axis in one day of twenty four hours the revolution around the sun in one year of three hundred and sixty five and one quarter days and a very slow gyratory motion af its poles around and outside of aline at right angles to alie plane of the ecliptic and coinciding with the line of rotation at its center in years |
