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J/AJ/106/352 ICCD speckle observations of binary stars. VIII. (Hartkopf 1993)
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ICCD speckle observations of binary stars. VIII. Measurements during 1989-1991
from the Cerro Tololo 4 m telescope
Hartkopf W.I., Mason B.D., Barry D.J., McAlister H.A., Bagnuolo W.G.
<Astron. J. 106, 352 (1993)>
=1993AJ....106..352H
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ADC_Keywords: Stars, double and multiple; Interferometry
Abstract:
One-thousand eighty-eight observations of 947 binary star systems,
observed by means of speckle interferometry with the 4 m telescope on
Cerro Tololo, are presented. These measurements, made during the
period 1989-1991, comprise the second installment of results stemming
from the expansion of our speckle program to the southern hemisphere.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
notes1 80 109 Notes to table1
notes1.tex 71 140 TeX version of notes1
table1 72 1088 Binary star speckle measurements
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See also:
I/107A : Washington Double Star Catalog (WDS) (Worley+ 1984)
J/AJ/106/637 : (Pleiades, Praesepe, IC 4665)
J/AJ/106/1639 : (Bright stars)
J/AJ/108/2299 : ICCD speckle obs. of binary stars. XI (Hartkopf+ 1994)
J/AJ/111/393 : ICCD speckle obs. of binary stars. XII (Al-Shukri+ 1996)
J/AJ/111/936 : ICCD speckle obs. of binary stars. XIII (Hartkopf+ 1996)
ftp://ftp.chara.gsu.edu/ : results from CHARA project
Byte-by-byte Description of file: table1
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Right Ascension 2000.0
3- 5 I3 min RAdm Right Ascension 2000.0, (deci-minutes, there
is an implicit decimal point between bytes
#4 and 5)
6 A1 --- DE- Declination sign
7- 8 I2 deg DEd Declination 2000.0
9- 10 I2 arcmin DEm Declination 2000.0
13- 21 A9 --- Name ADS, HR, or DM designation (note that this
field does not appear in the printed paper)
24- 35 A12 --- Discov Discoverer designation
38- 45 A8 --- HD Henry Draper designation
48- 56 F9.4 yr BYear Besselian year of observation
59- 63 F5.1 deg theta Position angle
64 A1 --- u_theta Uncertainty flag on position angle
67- 71 F5.3 arcsec rho Angular separation
72 A1 --- u_rho Uncertainty flag on angular separation
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Note:
This table contains measurements from the CTIO 4 m telescope, obtained during
1989 December, 1990 May and 1991 May. The coordinates, which also serve as
the Washington Double Star Catalog (WDS) number are for equinox 2000.0, but
position angles have not been corrected for precession and are thus based
upon the equinox for the epoch of observation, shown as the fraction of the
Besselian year. Accuracies for angular separation and position angle are a
function of stellar magnitude, magnitude difference, separation, and
observing conditions; typical values for these observations are perhaps
1-3 milliarcsec in separation and 0.1-0.2 arcsec in position angle. Colons
following the values indicate measurements of somewhat reduced accuracy,
usually as a result of observing fainter systems or systems of larger
magnitude difference.
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Origin: AAS CD-ROM series, Volume 1, 1993
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(End) Patricia Bauer [CDS] 27-Jun-1994