Access to Astronomical Catalogues

← Click to display the menu
J/AJ/122/1586       Speckle interferometry at USNO. VII.     (Mason+, 2001)

Speckle interferometry at the US naval observatory. VII. Mason B.D., Hartkopf W.I., Wycoff G.L., Holdenried E.R., Platais I., Rafferty T.J., Hall D.M., Hennessy G.S., Urban S.E., Pohl B.L. <Astron. J. 122, 1586 (2001)> =2001AJ....122.1586M
ADC_Keywords: Stars, double and multiple ; Interferometry Keywords: binaries: general - binaries: visual - techniques: interferometric Abstract: The results of 2014 speckle interferometric observations of double stars, made with the 26 inch (66cm) refractor of the US Naval Observatory, are presented. These observations are averaged into 1266 mean positions and range in separation from 0.21" to 13.41", with a mean separation of 2.61". his is the seventh in a series of papers presenting measures obtained with this system and covers the period 2000 January 10 through December 8. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 62 1065 Speckle Interferometric Measurements of Double Stars table2.dat 132 202 Speckle Interferometric Measurements and Residuals to Systems with Orbits
See also: I/237 : The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996) J/AJ/117/1905 : Speckle interferometry at USNO. II. (Germain+, 1999) J/AJ/117/2511 : Speckle interferometry at USNO. III (Germain+, 1999) J/AJ/118/1395 : Speckle interferometry at USNO. IV. (Douglass+, 1999) J/AJ/119/3071 : Speckle interferometry at USNO. V. (Douglass+, 2000) J/AJ/120/1120 : Speckle interferometry at USNO. VI. (Mason+, 2000) J/AJ/124/2254 : Speckle interferometry at USNO. VIII. (Mason+, 2002) J/AJ/127/539 : Speckle interferometry at USNO. IX. (Mason+, 2004) J/AJ/128/3012 : Speckle interferometry at USNO. X. (Mason+, 2004) J/AJ/131/2687 : Speckle interferometry at USNO. XI. (Mason+, 2004) J/AJ/132/2219 : Speckle interferometry at USNO. XII (Mason+, 2006) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Right Ascension (J2000) 4- 7 F4.1 min RAm Right Ascension (J2000) 9 A1 --- DE- Sign of the Declination (J2000) 10- 11 I2 deg DEd Declination (J2000) 13- 14 I2 arcmin DEm Declination (J2000) 16- 28 A13 --- Disc Discoverer designation 30- 38 F9.4 yr Epoch.Y Epoch of observation 40- 44 F5.1 deg PA Position angle 45 A1 --- u_PA [:] Uncertainty flag for PA 47- 51 F5.2 arcsec Sep Separation 52 A1 --- u_Sep [:] Uncertainty flag for Sep 54 I1 --- Num Number of observations contained in the mean 56- 61 A6 --- Note Object notes (1)
Note (1): A number indicates the number of years since the system was last measured and only given for systems with ≳50years. C = Confirming observation; x = large separation change since Hipparcos measure; y = large change in position since last measure; z = disagrees with Hipparcos measure, but matches the reprocessing of Fabricius & Makarov (2000, Cat. J/A+AS/144/45) quite well.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Right Ascension (J2000) 4- 7 F4.1 min RAm Right Ascension (J2000) 9 A1 --- DE- Sign of the Declination (J2000) 10- 11 I2 deg DEd Declination (J2000) 13- 14 I2 arcmin DEm Declination (J2000) 16- 28 A13 --- Disc Discoverer designation 30- 38 F9.4 yr Epoch.Y Epoch of observation 40- 44 F5.1 deg PA Position angle 46- 49 F4.2 arcsec Sep Separation 51 I1 --- Num Number of observations contained in the mean 53- 57 F5.1 deg (O-C)PA The O-C position angle residual 59- 63 F5.2 arcsec (O-C)Sep The O-C separation residual 65 A1 --- f_Ref [*] Indicates system used in characterizing errors 67-132 A66 --- Ref Orbit reference
History: From electronic version of the journal References: Douglass et al., Paper I 1997ApJS..111..289D Germain et al., Paper II 1999AJ....117.1905G, Cat. J/AJ/117/1905 Germain et al., Paper III 1999AJ....117.2511G, Cat. J/AJ/117/2511 Douglass et al., Paper IV 1999AJ....118.1395D, Cat. J/AJ/118/1395 Douglass et al., Paper V 2000AJ....119.3071D, Cat. J/AJ/119/3071 Mason et al., Paper VI 2000AJ....120.1120M, Cat. J/AJ/120/1120 Mason et al., Paper VIII 2001AJ....124.2254M, Cat. J/AJ/124/2254 Mason et al., Paper IX 2004AJ....127..539M, Cat. J/AJ/127/539 Mason et al., Paper X 2004AJ....128.3012M, Cat. J/AJ/128/3012 Mason et al., Paper XI 2006AJ....131.2687M, Cat. J/AJ/131/2687 Mason et al., Paper XII 2006AJ....132.2219M, Cat. J/AJ/132/2219 Mason et al., Paper XIII 2007AJ....134.1671M, Cat. J/AJ/134/1671 Mason et al., Paper XIV 2008AJ....136.2223M, Cat. J/AJ/136/2223 Mason et al., Paper XV 2010AJ....140..480M, Cat. J/AJ/140/480 Mason et al., Paper XVI 2011AJ....141..157M, Cat. J/AJ/141/157 Mason et al., Paper XVII 2011AJ....142...46M, Cat. J/AJ/142/46 Mason et al., Paper XVIII 2012AJ....143..124M, Cat. J/AJ/143/124
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 14-Jan-2002
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact