The Observing Guide to the Messier Marathon（I***N=9780521803861） mobi 下载 网盘 caj lrf pdf txt 阿里云

　　The Messier Catalogue is a list of one hundred and ten

galaxies, star clusters and nebulae, and includes many of the

brightest and best-known objects in the sky. Amateur astronomers

who find all the objects on the list in one night have successfully

completed the Messier Marathon. The Observing Guide to the Messier

Marathon contains over 90 easy-to-use star maps to guide the

observer from one object to the next, and provides tips for a

successful night of observing. Don Machholz also tells the story of

the eighteenth-century astronomer, Charles Messier, and how he came

to compile his extensive catalogue. His complete guide to the

Messier Marathon will help the *** astronomer to observe the

Messier Objects throughout the year, using a small telescope or

even a pair of binoculars. Don Machholz is an engineer in Auburn,

California. Interested in astronomy since childhood, he is a

renowned comet hunter, having discovered nine comets that bear his

name. He writes articles for local California newspapers and radio

stati*** for special astronomical events. Between 1988 and 2000,

Don Machholz was the Comets Recorder for the Association of Lunar

and Planetary Recorders.

List of tables

Preface

Acknotuled~ments

Part 1 Handbook

1　Charles Messier

　Notes to Chapter

The Messier Catalogue

Defining the 'nebulous' objects

The 'add-on' Messier Objects

Putting it all together

Notes to Chapter 2

3  The Messier Marathon

　A short history of the Messier Marathon

　Factors affecting the Messier Marathon

　Messier Marath*** during other times of the year

　Getting your astronomy club involved

　Hints for running the Marathon

　……

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