Garrett Putnam Serviss was an American astronomer and science fiction writer. His writing creates people's interest in astronomy. In this book he tells the importance of opera-glass. Opera-glass has given us clear vision for astronomy and makes us well acquaintance with the stars. Galileo made his discoveries possible with the opera-glass help. Although it has low magnifying power but it's brilliant illumination of objects looked at is still valuable. He has given a picturesque description of the winter constellation. In which Orion is the prominent, in the east there is Pleiades above the northeast horizon the most beautiful star Capella flashes. Fiery red star Aldebaran looks like the eye of the angry bull. Taurus rises behind the horizon and finally a beautiful v-shaped cluster Hyades appears. The author has attempted to inspire the study of the heavenly bodies by pointing out some of the interesting and amazing phenomena of the universe that are visible with little or no help from optical instruments, and indicating means of becoming informed with the constellations and the planets.
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