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LECTURES ON ASTRONOMY
Lectures on Astronomy—Part I
CHAPTER II

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We shall now proceed to the consideration of the several planets.

MERCURY

This planet, with the exception of the asteroids, is the smallest of the system. It is the nearest to the Sun, and, in consequence, can not be seen (on account of the Sun's superior light), except at its greatest eastern and western elongations, which occur in March and April, August and September, when it may be seen for a short time immediately after sunset and shortly before sunrise. It then appears like a star of the first magnitude, having a white twinkling light, and resembling somewhat the star Regulus in the constellation Leo. The day in Mercury is about ten minutes longer than ours, its year is about equal to three of our months. It receives six and a half times as much heat from the Sun as we do; from which we conclude that the climate must be very similar to that of Fort Yuma, on the Colorado River. The difficulty of communication with Mercury will probably prevent its ever being selected as a military post; though it possesses many advantages for that purpose, being extremely inaccessible, inconvenient, and, doubtless, singularly uncomfortable. It receives its name from the God, Mercury, in the Heathen Mythology, who is the patron and tutelary Divinity of San Diego County.

VENUS

This beautiful planet may be seen either a little after sunset or shortly before sunrise, according as it becomes the morning or the evening star, but never departing quite forty-eight degrees from the Sun. Its day is about twenty-five minutes shorter than ours; its year seven and a half months or thirty-two weeks. The diameter of Venus is 7,700 miles, and she receives from the Sun thrice as much light and heat as the Earth.

An old Dutchman named Schroeter spent more than ten years in observations on this planet, and finally discovered a mountain on it twenty-two miles in height, but he never could discover anything on the mountain, not even a mouse, and finally died about as wise as when he commenced his studies.

Venus, in Mythology, was a Goddess of singular beauty, who became the wife of Vulcan, the blacksmith, and, we regret to add, behaved in the most immoral manner after her marriage. The celebrated case of Vulcan vs. Mars, and the consequent scandal, is probably still fresh in the minds of our readers. By a large portion of society, however, she was considered an ill-used and persecuted lady, against whose high tone of morals and strictly virtuous conduct not a shadow of suspicion could be cast; Vulcan, by the same parties, was considered a horrid brute, and they all agreed that it served him right when he lost his case and had to pay the costs of court. Venus still remains the Goddess of Beauty, and not a few of her protégés may be found in California.

THE EARTH

The Earth, or as the Latins called it, Tellus (from which originated the expression, "Do tell us"), is the third planet in the Solar System, and the one on which we subsist, with all our important joys and sorrows. The San Diego Herald is published weekly on this planet, for five dollars per annum, payable invariably in advance. As the Earth is by no means the most important planet in the system, there is no reason to suppose that it is particularly distinguished from the others by being inhabited. It is reasonable, therefore, to conclude that all the other planets of the system are filled with living, moving and sentient beings; and as some of them are superior to the Earth in size and position, it is not improbable that their inhabitants may be superior to us in physical and mental organization.

But if this were a demonstrable fact, instead of a mere hypothesis, it would be found a very difficult matter to persuade us of its truth. To the inhabitants of Venus the Earth appears like a brilliant star—very much, in fact, as Venus appears to us; and, reasoning from analogy, we are led to believe that the election of Mr. Pierce, the European war, or the split in the great Democratic party produced but very little excitement among them.

To the inhabitants of Jupiter, our important globe appears like a small star of the fourth or fifth magnitude. We recollect, some years ago, gazing with astonishment upon the inhabitants of a drop of water, developed by the Solar Microscope, and secretly wondering whether they were or not reasoning beings, with souls to be saved. It is not altogether a pleasant reflection that a highly scientific inhabitant of Jupiter, armed with a telescope of (to us) inconceivable form, may be pursuing a similar course of inquiry, and indulging in similar speculations regarding our Earth and its inhabitants. Gazing with curious eye, his attention is suddenly attracted by the movements of a grand celebration of Fourth of July in New York, or a mighty convention in Baltimore. "God bless my soul," he exclaims, "I declare they're alive, these little creatures; do see them wriggle!" To an inhabitant of the Sun, however, he of Jupiter is probably quite as insignificant, and the Sun man is possibly a mere atom in the opinion of a dweller in Sirius. A little reflection on these subjects leads to the opinion that the death of an individual man on this Earth, though perhaps as important an event as can occur to himself, is calculated to cause no great convulsion of Nature or disturb particularly the great aggregate of created beings.

The Wit and Humor of America, Volume V

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