The Rigge v. Dean exchanges were a series of articles between Fr. William Rigge, S.J. and John Dean debating the historicity of the stories surrounding Pope Calixtus III and Halley's Comet that appeared in Popular Astronomy ...

First Paragraph | Perhaps the title of this article sounds odd to the reader on account of its similarity to an old conundrum. No pleasantry of the sort is, however, intended, my object is simply to show to some extent why ...

First Paragraph | In the northern heavens, visible in the United States on almost any night of the year, there is a famous star that the Arabians named Al Gol, the Demon Star. While all the myriads of fixed stars glowed ...

First Paragraph | All professors of physics are fond of harmonic curves. Many even seem to consider it a duty, as far as their circumstances permit, at one time or another to construct a machine and draw some of these ...

First Paragraph | The solar eclipse of June 28, 1908 will be well visible all over the United States. The Sun will everywhere be high in the sky, and the magnitude of the eclipse will vary from one-tenth in the state of ...

First Paragraph | The magnitude of the solar eclipse of 1916 December 24 is about as small as any that can occur in practice, being only one and one-tenth per cent, of the sun’s diameter, according to the American Ephemeris. ...

First Paragraph | The predicted passage of the earth through the tail of Halley’s comet on the night of May 18 seems still to fill many anxious minds with dread. Its absolute harmlessness cannot, therefore, be emphasized ...

THE TOTAL ECLIPSE OF THE MOON | The eclipse of December 28 next is exceptional in that, (1) it is the seventh and last eclipse of this year,—seven being the greatest possible number that can occur in a year;—(2) it is the ...

THE ANNULAR ECLIPSE OF THE SUN | Except in the Pacific states, the annular eclipse of the sun of 1919 November 22 will be visible to a greater or less extent all over the United States. The accompanying maps will probably ...

First Paragraph: | It has often been said that no astronomer can be an atheist. The scale upon which the universe is built; the endless variety and the infinite number of the visible stars, all of which are self-luminous ...