BINARY STARS

By W. DANAK

CONTENTS MORE THAN ONE SUN (BOB ARGYLE) WHY OBSERVE DOUBLE STARS? (BOB ARGYLE) THE OBSERVATION OF BINOCULAR DOUBLE STARS (MIKE ROPELEWSKI) DOUBLE STAR SKETCHING (JEREMY PEREZ) MULTIPLE STARS AND PLANETS (BOB ARGYLE) IS THE SUN A DOUBLE STAR? (BOB ARGYLE) THE ORBITAL ELEMENTS OF A VISUAL BINARY STAR (ANDREAS ALZNER) ORBIT COMPUTATION (ANDREAS ALZNER) TEN FAMOUS DOUBLE STARS (BOB ARGYLE) THE RESOLUTION OF A TELESCOPE (BOB ARGYLE) RE?ECTING TELESCOPES AND DOUBLE STAR ASTRONOMY (CHRISTOPHER TAYLOR) SIMPLE TECHNIQUES OF MEASUREMENT (E T H TEAGUE) FILAR MICROMETER (BOB ARGYLE) THE DIFFRACTION GRATING MICROMETER (ANDREAS MAURER) CCD CAMERA OBSERVATIONS (BOB BUCHHEIM) LUCKY IMAGING (RAINER ANTON) THE DSLR CAMERA (ERN?O BERK´O) ASTROMETRIC SPECKLE INTERFEROMETRY FOR THE AMATEUR (NILS TURNER) INTERNET ASTROMETRY (RAFAEL CABALLERO) HOW TO MEASURE THE MINIMA OF ECLIPSING BINARIES; AN AMATEUR’S EXPERIENCES (LAURENT CORP) LUNAR OCCULTATIONS (GRAHAM APPLEBY) WHAT THE AMATEUR CAN CONTRIBUTE (BOB ARGYLE) SOME ACTIVE AMATEUR DOUBLE STAR OBSERVERS (BOB ARGYLE) AN OBSERVING SESSION (BOB ARGYLE) SOME USEFUL FORMULAE (MICHAEL GREANEY) STAR ATLASES AND SOFTWARE (OWEN BRAZELL) CATALOGUES (BOB ARGYLE) PUBLICATION OF RESULTS (BOB ARGYLE) 29 REFERENCES AND BIBLIOGRAPHY