THE ASTRONOMICAL JOURNAL    VOLUME 111, NUMBER 1, PAGE 370         JANUARY 1996

   BINARY STAR ORBITS FROM SPECKLE INTERFEROMETRY. VIII. ORBITS OF 37 CLOSE
                                VISUAL SYSTEMS

         WILLIAM I. HARTKOPF, BRIAN D. MASON, AND HAROLD A. McALISTER

    Center for High Angular Resolution Astronomy, Georgia State University,
                            Atlanta, Georgia 30303
       Electronic mail: hartkopf@chara.gsu.edu, mason@chara.gsu.edu,
                             hal@chara.gsu.edu


                                   ABSTRACT

    New orbital elements are presented for 37 close visual systems that
    have been observed and in some cases discovered by speckle
    interferometry.  Periods of these systems range from 5.7 to 425 yr,
    semimajor axes from 0.06" to 1.1".  Four of these systems (Kui 18, Fin
    325, StF 2597, and McA 77) had no previously published orbital
    analyses, while elements for a number of other systems have undergone
    major revisions.  Finally, 135 new or revised interferometric
    measurements of these systems are also presented, as well as 8 negative
    results.