By this method the starlight is analyzed, and the sunlight is analyzed, and the two compared.

If it does not disclose absolutely what are the peculiarities of starlight and sunlight, relatively, it traces the relationship.
"In order to be successful in this kind of observation, the telescope must keep very accurately the motion of the earth in its axis; and so the papal government furnishes nice machinery to keep up with this motion,--the same motion for declaring whose existence Galileo suffered! The two hundred years had done their work.
"I should have been glad to stay until dark to look at nebulae, but the Father kindly informed me that my permission did not extend beyond the daylight, which was fast leaving us, and conducting me to the door he informed me that I must make my way home alone, adding, 'But we live in a civilized country.' "I did not express to him the doubt that rose to my thoughts! The Ave Marie bell rings half an hour after sunset, and before that time I must be out of the observatory and at my own house.".