J/AJ/124/2254 Speckle interferometry at USNO. VIII. (Mason+, 2002)
Speckle interferometry at the US naval observatory. VIII.
Mason B.D., Hartkopf W.I., Urban S.E., Wycoff G.L., Pascu D., Hall D.M.,
Hennessy G.S., Platais I., Rafferty T.J., Holdenried E.R.
<Astron. J. 124, 2254 (2002)>
=2002AJ....124.2254M 2002AJ....124.2254M
ADC_Keywords: Stars, double and multiple ; Interferometry
Keywords: binaries: general - binaries: visual - techniques: interferometric
Abstract:
The results of 2044 speckle interferometric observations of double
stars, made with the 26 inch (66cm) refractor of the US Naval
Observatory, are presented. Each speckle interferometric observation
of a system represents a combination of over a thousand short-exposure
images. These observations are averaged into 1399 mean positions and
range in separation from 0.16" to 14.97", with a mean separation of
2.51". This is the eighth in a series of papers presenting measures
obtained with this system and covers the period 2001 March 18 through
2001 December 30.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 52 8 New WSI Pairs
table2.dat 59 1218 Speckle Interferometric Measurements of
Double Stars
table3.dat 88 181 Speckle Interferometric Measurements and
Residuals to Systems with Orbits
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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/122/1586 : Speckle interferometry at USNO. VII. (Mason+, 2001)
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
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Right Ascension J2000 (hours)
4- 5 I2 min RAm Right Ascension J2000 (minutes)
7- 10 F4.1 s RAs Right Ascension J2000 (seconds)
12 A1 --- DE- Declination J2000 (sign)
13- 14 I2 deg DEd Declination J2000 (degrees)
16- 17 I2 arcmin DEm Declination J2000 (minutes)
19- 20 I2 arcsec DEs Declination J2000 (seconds)
24- 35 A12 --- DD Name of pair
37- 40 F4.1 mag magA Estimated magnitude of primary
44- 47 F4.1 mag magB Estimated magnitude of secondary
50- 52 A3 --- Note Individual Notes (1)
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Note (1): Note number have the following meaning:
1: Serendipitously found while searching for MLB 699 and MLB 658
2: also known as BD +29 3779
3: new component to RST 4669
4: serendipitously found while searching for LDS 2511
5: new component to COU 2323
6: new component to TDT 4209
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- WDS WDS name based on J2000 coordinates
13- 25 A13 --- DD Discoverer designation
27- 35 F9.4 yr Epoch Epoch of observation
37- 41 F5.1 deg PA Position angle (1)
42 A1 --- u_PA [:] Uncertainty flag for PA (2)
44- 48 F5.2 arcsec Sep Separation
49 A1 --- u_Sep [:] Uncertainty flag for Sep (2)
51 I1 --- NObs Number of observations contained in the mean
53- 58 A6 --- Note Object notes (3)
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Note (1): The position angle has not been corrected for precession and is,
thus, based on the equinox for the epoch of observation.
Note (2): These low-quality observations may be due to one or more of the
following parameters: close separation, large Δm, one or both
components too faint, a large zenith distance, and poor seeing or
transparency. They are included primarily because of either the
confirming nature of the observation or the number of years since the
last measured position.
Note (3): Notes:
C = Confirming observation.
1 = Discovered by J. C. Hammond with the USNO 26 inch,
1905 November 16 (Hall, 1929, Equatorial Observations 1908-1926
(Publ. US Nav. Obs., 2d Ser., 12, Part 1) (Washington: GPO),
p. 236); remeasured here, 2001 November 16.
2 = Identifed erroneously as TDS 94 in Mason et al., 2000AJ....120.3244M 2000AJ....120.3244M.
3 = Also see Table 1.
50-171 = Number of years since last measure.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- WDS WDS name based on J2000 coordinates
13- 25 A13 --- DD Discoverer designation
27- 35 F9.4 yr Epoch ? Epoch of observation
37- 41 F5.1 deg PA ? Position angle
43- 46 F4.2 arcsec Sep ? Separation
48 I1 --- NObs ? Number of observations contained in the mean
50- 54 F5.1 deg (O-C)PA The O-C position angle residual
56- 60 F5.2 arcsec (O-C)Sep The O-C separation residual
62- 86 A25 --- Ref Observation reference
88 A1 --- f_Ref Flag on Ref (1)
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Note (1): Notes:
* = System used in characterizing errors;
1 = Additional O-C = 8.5° and 0.01 arcsec from
Starikova, 1977ATsir.961....7S 1977ATsir.961....7S
2 = Additional O-C = 0.7° and -0.07 arcsec from
Olevic & Jovanovic, 1998 Circ. d'Inf., No. 136
3 = Additional O-C = 2.1° and 0.07 arcsec from
Olevic & Popovic, 2000, Circ. d'Inf., No. 141
4 = Additional O-C = 4.9° and 0.07 arcsec from
Popovic, 1969, Bull. Obs. Astron. Belgrade, No. 27, 33
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History:
From electronic version of the journal
References:
Douglass et al., Paper I 1997ApJS..111..289D 1997ApJS..111..289D
Germain et al., Paper II 1999AJ....117.1905G 1999AJ....117.1905G, Cat. J/AJ/117/1905
Germain et al., Paper III 1999AJ....117.2511G 1999AJ....117.2511G, Cat. J/AJ/117/2511
Douglass et al., Paper IV 1999AJ....118.1395D 1999AJ....118.1395D, Cat. J/AJ/118/1395
Douglass et al., Paper V 2000AJ....119.3071D 2000AJ....119.3071D, Cat. J/AJ/119/3071
Mason et al., Paper VI 2000AJ....120.1120M 2000AJ....120.1120M, Cat. J/AJ/120/1120
Mason et al., Paper VII 2001AJ....122.1586M 2001AJ....122.1586M, Cat. J/AJ/122/1586
Mason et al., Paper IX 2004AJ....127..539M 2004AJ....127..539M, Cat. J/AJ/127/539
Mason et al., Paper X 2004AJ....128.3012M 2004AJ....128.3012M, Cat. J/AJ/128/3012
Mason et al., Paper XI 2006AJ....131.2687M 2006AJ....131.2687M, Cat. J/AJ/131/2687
Mason et al., Paper XII 2006AJ....132.2219M 2006AJ....132.2219M, Cat. J/AJ/132/2219
Mason et al., Paper XIII 2007AJ....134.1671M 2007AJ....134.1671M, Cat. J/AJ/134/1671
Mason et al., Paper XIV 2008AJ....136.2223M 2008AJ....136.2223M, Cat. J/AJ/136/2223
Mason et al., Paper XV 2010AJ....140..480M 2010AJ....140..480M, Cat. J/AJ/140/480
Mason et al., Paper XVI 2011AJ....141..157M 2011AJ....141..157M, Cat. J/AJ/141/157
Mason et al., Paper XVII 2011AJ....142...46M 2011AJ....142...46M, Cat. J/AJ/142/46
Mason et al., Paper XVIII 2012AJ....143..124M 2012AJ....143..124M, Cat. J/AJ/143/124
Mason et al., Paper XIX 2013AJ....146...56M 2013AJ....146...56M, Cat. J/AJ/146/56
Hartkopf et al., Paper XX 2015AJ....150..136H 2015AJ....150..136H, Cat. J/AJ/150/136
Mason et al., Paper XXI 2017AJ....153...20M 2017AJ....153...20M, Cat. J/AJ/153/20
Mason et al., Paper XXII 2017AJ....154..183M 2017AJ....154..183M, Cat. J/AJ/154/183
Mason et al., Paper XXIII 2018AJ....156..240M 2018AJ....156..240M
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 12-Nov-2002