CDROM/AJ/V111/P0370 Close Visual Binaries (Hartkopf+ 1996) ================================================================================ Binary Star Orbits from Speckle Interferometry. VIII. Orbits of 37 Close Visual Systems William I. Hartkopf, Brian D. Mason, and Harold A. McAlister <1996, AJ, 111, 370> =1996AJ....111..370H ================================================================================ 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. File Summary: -------------------------------------------------------------------------------- File Name Lrecl Records Explanations -------------------------------------------------------------------------------- table1.dat 75 144 New speckle interferometric observations -------------------------------------------------------------------------------- Byte-by-byte Description of file: table1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1-10 A10 --- WDS *WDS designation (epoch-2000 coordinates) 11-12 2X --- --- Blank 13-22 A10 --- Disc Binary star discoverer designation 23-25 3X --- --- Blank 26-31 A6 --- HD Henry Draper catalogue number 32-42 F11.4 BY Date Date of obs., as fractional Besselian year 43-49 F7.1 deg Theta []? Binary star position angle 50 A1 --- u_Theta Position angle uncertainty flag 51-52 2X --- --- Blank 53 A1 --- l_Rho [<] Separation upper limit flag 54-58 F5.3 arcsec Rho []? Binary star separation 59 A1 --- u_Rho Separation uncertainty flag 60-61 2X --- --- Blank 62-68 A7 nm Filter Filter effective wavelength and FWHM 69-72 F4.1 m Tel *[]? Telescope aperture 73-74 2X --- --- Blank 75 I1 --- Notes *[1-4]? Notes -------------------------------------------------------------------------------- Notes for file: table1.dat -------------------------------------------------------------------------------- WDS: WDS designation (epoch-2000 coordinates, in the manner of the Washington Double Star Catalogue. If this field is blank, the Date, Theta, u_Theta, Rho, l_Rho, u_Rho, Filter, Tel, and Note fields are continuations from the previous record. Tel: The aperture sizes uniquely define the telescope used, as either the Cerro Tololo 4.0 m, Kitt Peak 3.8 m, Canada-France-Hawaii 3.6 m, or Mount Wilson 2.5 m telescope. Notes: 1 = Rereduction of archival data; secondary peak was originally either undetected or found too weak for reliable measurement. 2 = Rereduction of an observation originally pubished by Hartkopf et al. (1994, AJ, 108, 2299). 3 = Reanalysis of the data originally pubished by McAlister et al. (1987, AJ, 99, 965) found that the secondary peak was actually too close for reliable measurement. 4 = Previously unpublished negative result. -------------------------------------------------------------------------------- ================================================================================ (End) Lee Brotzman [ADS] 24-Feb-1996