Identifier: beginnersstarboo00murp (find matches)
Title: A beginner's star-book; an easy guide to the stars and to the astronomical uses of the opera-glass, the field-glass and the telescope
Year: 1912 (1910s)
Authors: Murphy, Edgar Gardner, 1869-1913
Subjects: Astronomy
Publisher: New York, London, G.P. Putnam's Sons
Contributing Library: Wellesley College Library
Digitizing Sponsor: Boston Library Consortium Member Libraries

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SATURN From Photograph by Dr. Pcrcival Loiiell. Lowell Observa-tory. Flagstaff, Arizona
Text Appearing After Image:
HALLEYS COMET, MAY 5, 1910 From a photograph taken at the Yerkcs Observatory 92 Comets ant) flOctcors 93 with great rapidity, completing its revolution in lo hours, 14 minutes (the day ofSaturn), the great ball is bulged out or broadened at the equator and flattened at thepoles. This oblateness of the sphere is even more marked than in the case of Jupiter. Asmall telescope will show it. Comets and Meteors There is no weighty reason why any amateur astronomer should not be the discoverer of acomet. The requisites are a telescope of low power, large field, and generous illumination; agood store of pertinacity and patience; and a fair knowledge of the constellations—in orderthat the observer, by reference to the neighboring stars, may be enabled to decide as to thefact of motion in a suspected object. If, after several hours, no motion—in reference tosurrounding stars—be noted, the probabilities are that the object is not a comet but anebula. For almost all comets, especially on ou

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