A Handbook of Double Stars
For the Use of Amateurs

Table of Contents

Preface
Part I. Historical, and Descriptive of Instruments and Methods:
1. Historical introduction
2. The Equatorial: its construction and adjustments
3. Some account of the Equatorials which have been used by double-star observers
4. The micrometer
5. Methods of observing double stars
Part II. On the Calculation of the Orbit of a Binary Star:
1. Introduction
2. Example of an orbit worked by a graphical method
3. Dr. Doberck's example of an orbit worked by analytical methods
4. On relative rectilinear motion
5. On the effect of proper motion and parallax on the observed position angles and distance of an optically double star
6. On the errors of observation and the combination of observations
Part III. The Catalogue and Measures: Introductory remarks
A catalogue of binary and other double starts deserving of attention
Lists of measures, with historical notes, etc.
Supplementary list of measures
Appendix
Additional notes to measures
Binary stars classified
Note on systematic errors in the measures of angle and distance of double stars
Part IV. Bibliography: A. Some of the most important works and papers on double stars
B. Some papers on the micrometer
C. Some papers on the colours of double stars
Additional notes
Corrections 1880.

Look Inside

• Index (52 KB)
• Front Matter (916 KB)
• Table of Contents (96 KB)
• Marketing Excerpt (566 KB)
• Copyright Information Page (90 KB)