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Title: Half-hours with the Telescope
Being a Popular Guide to the Use of the Telescope as a
Means of Amusement and Instruction.

Author: Richard A. Proctor

Release Date: September 28, 2005 [EBook #16767]

Language: English

Character set encoding: ASCII

*** START OF THIS PROJECT GUTENBERG EBOOK HALF-HOURS WITH THE TELESCOPE ***

Produced by Jason Isbell and the Online Distributed
Proofreading Team at http://www.pgdp.net

[Illustration: PLATE I. Maps I.-IV.]

HALF-HOURS

WITH

THE TELESCOPE;

BEING A POPULAR GUIDE TO THE USE OF THE TELESCOPE
AS A MEANS OF AMUSEMENT AND INSTRUCTION.

BY

RICHARD A. PROCTOR, B.A., F.R.A.S.,
AUTHOR OF "SATURN AND ITS SYSTEM," ETC.

WITH ILLUSTRATIONS ON STONE AND WOOD.

* * * * *

An undevout astronomer is mad:
True, all things speak a God; but, in the small
Men trace out Him: in great He seizes man.
YOUNG.

* * * * *

NEW YORK:

G.P. PUTNAM'S SONS.

1873.

LONDON:

PRINTED BY WILLIAM CLOWES AND SONS, STAMFORD STREET
AND CHARING CROSS.

PREFACE.

The object which the Author and Publisher of this little work have
proposed to themselves, has been the production, at a moderate price, of
a useful and reliable guide to the amateur telescopist.

Among the celestial phenomena described or figured in this treatise, by
far the larger number may be profitably examined with small telescopes,
and there are none which are beyond the range of a good 3-inch
achromatic.

The work also treats of the construction of telescopes, the nature and
use of star-maps, and other subjects connected with the requirements of
amateur observers.

R.A.P.

_January_, 1868.

CONTENTS.

CHAPTER I. PAGE
A HALF-HOUR ON THE STRUCTURE OF THE TELESCOPE 1

CHAPTER II.
A HALF-HOUR WITH ORION, LEPUS, TAURUS, ETC. 33

CHAPTER III.
A HALF-HOUR WITH LYRA, HERCULES, CORVUS, CRATER, ETC. 47

CHAPTER IV.
A HALF-HOUR WITH BOOTES, SCORPIO, OPHIUCHUS,