\magnification=1200 \parskip4pt \nopagenumbers \hsize=9.6truein \vsize=7.0truein \hoffset=-0.5truein \centerline{} \vskip100pt {\centerline {TABLE 1. Basic Information and Orbital Parameters for Nearby Binaries.} \vskip30pt column 1: the Gliese number, from The Catalog of Nearby Stars (Gliese and Jahreiss) column 2: other name column 3: right ascension (1950.0), in hours-minutes-seconds column 4: declination (1950.0), in degrees-minutes-seconds column 5: parallax and standard error, in arcseconds column 6: orbital period, in years column 7: orbital semimajor axis, in arcseconds column 8: the fractional mass of the secondary, dimensionless column 9: the orbit quality, numbers from the Fourth Catalog of Orbits of Visual Binary Stars (Worley and Heintz), numbers in parentheses are estimates based on their system, ``ast'' indicates an astrometric binary resolved using infrared speckle techniques, ``sp'' indicates and orbit derived using infrared speckle and spectroscopic data column 10: references \vfil\eject \centerline{} \vskip2pt \hrule \vskip4pt \hrule $$\vbox{\rm \settabs\+binaryxxxxx& binaryxxxxxxxxx& RARARAx& DECDECDEx& parxxxxxxxxx& xxxxxxxx& xxxxxxxx& xxxxxxx& xxxxx& xxxxxxx& xxxxxxx& xxxxxxxxxxxxxxx\cr \+ \bf GL $\#$& \bf Other& \hskip12pt \bf RA&\hskip14pt \bf DEC&\hskip15pt \bf $\pi$$\pm$$\sigma$&\hskip-8pt \bf P (yrs)& \bf a ($\prime$$\prime$)&\hskip9pt \bf B& \bf q& \bf References\cr \+ && \hskip1pt \bf (1950.0)& \hskip7pt \bf (1950.0) \cr \centerline{} \vskip2pt \hrule \vskip15pt \+ 22AC$\dagger$& BD $+$66$^\circ$34& 00 29 20& $+$66 57 48& .1006 .0022& 15.95& 0.498& 0.261& ast& Hr 73, MHMC 91, *\cr \+ &&&&& 0.22& 0.012& 0.005 \cr \+ 25AB& HD 3443& 00 34 47& $-$25 02 30& .0721 .0087& 25.00& 0.670& 0.5 & \hskip4pt 1 & V 37, S 63\cr \+ &&&&&{\it 0.13}&{\it 0.007}&{\it 0.02}\cr \+ 65AB& L726-8& 01 36 25& $-$18 12 42& .3807 .0043& 26.52& 1.95& 0.494& (2)& GHW 88\cr \+ &&&&&{\it 0.40}&{\it 0.059}&0.003 \cr \+ 67AB$\dagger$& HD 10307& 01 38 44& $+$42 21 48& .0731 .0039& 19.50& 0.565& 0.231& ast& LBM 83, HMFC 92, *\cr \+ &&&&& 0.28& 0.035& 0.014& \cr \+ 166BC& HD 26976& 04 13 04& $-$07 44 06& .2071 .0025& 252.1& 6.943& 0.262& \hskip4pt 3 & Hz 74\cr \+ &&&&&{\it 6.30}&{\it 0.347}&0.01 & \cr \+ 234AB$\dagger$& Ross 614& 06 26 51& $-$02 46 12& .2421 .0017& 16.60& 1.009& 0.317& ast& P 77, JHM 93, *\cr \+ &&&&& 0.03& 0.087& 0.025& \cr \+ 340AB& HD 79969& 09 14 56& $+$28 46 42& .0582 .0029& 34.20& 0.66 & 0.473& (1)& V 38, Hr 82\cr \+ &&&&&{\it 0.17}&{\it 0.007}&0.006& \cr \+ 352AB& BD $-$12$^\circ$2918& 09 28 53& $-$13 16 06& .1079 .0091& 18.3 & 0.551& 0.51 & \hskip4pt 3 & Hz 79\cr \+ &&&&&{\it 0.46}&0.03 &{\it 0.02} & \cr \+ 508AB& HD 115953& 13 17 36& $+$48 02 24& .1030 .0080& 48.85& 1.465& 0.412& \hskip4pt 2 & Hz 69, Hz 76\cr \+ &&&&&{\it 0.73}&{\it 0.044}&0.012& \cr \+ 559AB& $\alpha$ Cen& 14 36 11& $-$60 37 48& .7506 .0046$^a$&79.92&17.515& 0.454& (1)& KW 78, Hz 82, DGV 86\cr \+ &&&&& {\it 0.40}& 0.05& 0.002& \cr }$$ \vskip6pt \hrule \vfil\eject \centerline{} \vskip2pt \hrule $$\vbox{\rm \settabs\+binaryxxxxx& binaryxxxxxxxxx& RARARAx& DECDECDEx& parxxxxxxxxx& xxxxxxxx& xxxxxxxx& xxxxxxx& xxxxx& xxxxxxx& xxxxxxx& xxxxxxxxxxxxxxx\cr \+ \bf GL $\#$& \bf Other& \hskip12pt \bf RA&\hskip14pt \bf DEC&\hskip15pt \bf $\pi$$\pm$$\sigma$&\hskip-8pt \bf P (yrs)& \bf a ($\prime$$\prime$)&\hskip9pt \bf B& \bf q& \bf References\cr \+ && \hskip1pt \bf (1950.0)& \hskip7pt \bf (1950.0) \cr \centerline{} \vskip2pt \hrule \vskip15pt \+ 570BC$^b$& HD 131976& 14 54 31& $-$21 11 18& .1742 .0060& 0.848& 0.143& 0.414& sp & MPDD 90\cr \+ &&&&& 0.001& 0.009& {\it 0.01}& \cr \+ 623AB$\dagger$& G 202-45& 16 22 39& $+$48 28 24& .1317 .0039& 3.73& 0.271& 0.183& ast& LB 78, MH 87, MM 89, *\cr \+ &&&&& 0.09& 0.031& 0.020& \cr \+ 661AB& HD 155876& 17 10 40& $+$45 44 48& .1595 .0031& 12.98& 0.71 & 0.496& (1)& E 67, HzB 84\cr \+ &&&&& 0.03& 0.01 & 0.01 & \cr \+ 677AB& BD $+$29$^\circ$3029& 17 27 24& $+$29 26 00& .0482 .0045& 60.00& 0.60 & 0.468& \hskip4pt 3 & B 55, L 82\cr \+ &&&&&{\it 1.50}&{\it 0.030}&0.011& \cr \+ 702AB& HD 165341& 18 02 56& $+$02 30 36& .1990 .0036& 88.13& 4.545& 0.442& (1)& WH 74\cr \+ &&&&&{\it 0.44}&{\it 0.045}&0.01 & \cr \+ 704AB& HD 165908& 18 05 08& $+$30 33 12& .0592 .0039& 55.8 & 1.00 & 0.398& \hskip4pt 1 & Hz 72\cr \+ &&&&&{\it 0.28}&{\it 0.010}&0.01 & \cr \+ 725AB& HD 173739/40& 18 42 12& $+$59 33 18& .2861 .0018& 408 & 13.88& 0.46 & (3)& Hz 87\cr \+ &&&&&{\it 10.2}&{\it 0.694}&0.02 & \cr \+ 1245AC$\dagger$& G 208-44& 19 52 16& $+$44 17 30& .2206 .0014$^c$&15.22& 0.795& 0.365& ast& MHFSLC 88, Ha 90, *\cr \+ &&&&& {\it 0.08}& 0.043& 0.019& \cr \+ 860AB & HD 239960& 22 26 13& $+$57 26 48& .2519 .0023& 44.67& 2.383& 0.394& (1)& Hz 86b\cr \+ &&&&&{\it 0.22}&{\it 0.024}&0.002& \cr }$$ \vskip6pt \hrule \vskip4pt \hrule \vfil\eject \centerline{} \vskip20pt \centerline {Notes to TABLE 1} \vskip12pt $^a$ parallax from Demarque {\it et al.} (1986) $^b$ see Mariotti {\it et al.} (1990) for mass solution from spectroscopic and speckle data, \vskip0pt \hskip30pt note that the parallax listed (from Gliese and Jahreiss 1991) will not yield the masses given in Table 5 $^c$ parallax from Harrington (1990) $\dagger$ semimajor axis and fractional mass determined via speckle data and photometric relations {\it Italicized} quantities indicate errors estimated by the authors. \vskip20pt \centerline {References for TABLE 1} \vskip12pt B 55 = Baize (1955), E 67 = Eggen (1967), DGV 86 = Demarque {\it et al.} (1986), GHW 88 = Geyer {\it et al.} (1988), Ha 90 = Harrington (1990), Hr 73, 82 = Hershey (1973, 1982), Hz 69, 72, 74, 76, 79, 82, 86b, 87 = Heintz (various years), HzB 84 = Heintz and Borgman (1984), HMFC 92 = Henry {\it et al.} (1992), JHM 93 = Johnson {\it et al.} (1993), KW 78 = Kamper and Wesselink (1978), L 82 = Lippincott (1982), LB 78 = Lippincott and Borgman (1978), LBM 83 = Lippincott {\it et al.} (1983), MHFSLC 88 = McCarthy {\it et al.} (1988), MH 87 = McCarthy and Henry (1987), MHMC 91 = McCarthy {\it et al.} (1991), MM 89 = Marcy and Moore (1989), MPDD 90 = Mariotti {\it et al.} (1990), P 77 = Probst (1977), S 63 = Strand (1963), V 37 = van den Bos (1937), V 38 = van den Bos (1938), WH 74 = Worth and Heintz (1974), * = this work \vfil\eject\end