J/AJ/156/240 Speckle interferometry at the USNO. XXIII. (Mason+, 2018)
Speckle interferometry at the U.S. Naval Observatory. XXIII.
Mason B.D., Hartkopf W.I., Urban S.E., Josties J.D.
<Astron. J., 156, 240 (2018)>
=2018AJ....156..240M 2018AJ....156..240M (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Interferometry
Keywords: binaries: general - binaries: visual - techniques: interferometric
Abstract:
The results of 3989 intensified CCD observations of double stars, made
with the 26-inch refractor of the U.S. Naval Observatory, are presented.
Each observation of a system represents a combination of over 2000
short-exposure images. These observations are averaged into 1911 mean
relative positions and range in separation from 0.289" to 128.638", with
a median separation of 8.669". Four orbits are improved. This is the 23rd
in this series of papers and covers the period 2017 January 4 through
2017 September 13.
Description:
This is the 23rd in a series of papers from the U.S. Naval Observatory's
speckle interferometry program, presenting results of observations obtained
at the USNO 26 inch telescope in Washington, DC (see, most recently,
Mason & Hartkopf 2017, J/AJ/154/183). From January 4 through 2017
September 13, the 26-inch telescope was used on 60 of 184 (33%) scheduled
nights. Instrumentation and the observing technique were as described
in Mason & Hartkopf (2017, J/AJ/154/183). Our 2017 observing list remained
the same as the previous, discussed in Mason & Hartkopf (2017,
J/AJ/154/183). Tables 3 and 4 present the relative measurements of double
stars made with the 26" telescope.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 141 1726 ICCD measurements of double stars
table4.dat 141 194 ICCD measurements of double stars with orbit
and linear residuals
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See also:
B/wds : The Washington Visual Double Star Catalog
(Mason+ 2001-2014)
J/A+AS/105/503 : Binary star speckle measurements (Balega+ 1994)
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/119/3084 : ICCD speckle obs. of binary stars. XXIII.
(Hartkopf+, 2000)
J/AJ/120/1120 : Speckle interferometry at USNO. VI. (Mason+, 2000)
J/AJ/120/2638 : CCD speckle obs. of binary stars. II. (Horch+, 2000)
J/AJ/122/1586 : Speckle interferometry at USNO. VII. (Mason+, 2001)
J/AJ/124/2254 : Speckle interferometry at USNO. VIII. (Mason+, 2002)
J/A+A/422/627 : Nearby multiple stars speckle interferometry
(Balega+, 2004)
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+, 2006)
J/AJ/132/2219 : Speckle interferometry at USNO. XII (Mason+, 2006)
J/AJ/134/1671 : Speckle interferometry at USNO. XIII (Mason+, 2007)
J/AJ/135/1334 : Speckle interferometry at the USNO station
(Hartkopf+, 2008)
J/AJ/136/2223 : Speckle interferometry at USNO. XIV (Mason+, 2008)
J/AJ/138/813 : Speckle interferometry at Mount Wilson Obs.
(Hartkopf+, 2009)
J/AJ/140/480 : Speckle interferometry at USNO. XV. (Mason+, 2010)
J/AJ/141/157 : Speckle interferometry at USNO. XVI. (Mason+, 2011)
J/AJ/142/46 : Speckle interferometry at USNO. XVII. (Mason+, 2011)
J/AJ/142/56 : Speckle interferometry at the USNO station
(Hartkopf+, 2011)
J/other/RMxAA/48.177 : Speckle interferometry of binaries (Orlov+, 2012)
J/other/AstBu/68.53 : Nearby multiple Speckle interferometry. V.
(Balega+, 2013)
J/AJ/152/138 : Orbits based on speckle interferometry at SOAR
(Tokovinin, 2016)
J/AJ/154/183 : Speckle interferometry at the USNO. XXII. (Mason+, 2017)
Byte-by-byte Description of file: table3.dat table4.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- WDS WDS designation (HHMMm+DDMM, J2000)
12- 18 A7 --- Disc Discoverer designation
20- 23 A4 --- Comp Measured components of multiple system
25- 32 F8.3 yr Epoch [2016.86/2017.702]? Epoch of observation
34- 38 F5.1 deg PA [0/359.7]? Position angle
40- 42 F3.1 deg e_PA [0/2.5]? Uncertainty in PA
44- 50 F7.3 arcsec Sep [0.289/128.638]? Separation
52- 56 F5.3 arcsec e_Sep [0/0.566]? Uncertainty in Sep
58 I1 --- Nobs [1/5]? Number of observations contained in
the mean
60- 63 F4.1 deg (O-C)PA [-4.8/37.9]? Position angle (O-C) residual
(only in Table 4)
65- 70 F6.3 arcsec (O-C)Sep [-1.464/0.267]? Separation (O-C) residual
(only in Table 4)
72- 97 A26 --- Ref Reference (only in Table 4)
99-135 A37 --- Bibcode Bibcode (or website) of the reference (only
in Table 4)
137-141 A5 --- Note Object note(s) (1)
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Note (1): Note as follows:
A = First measure of this pair. See Tables 1 and 2;
B = New orbit solution. See Tables 5, 7, Figure 1 and Section 2.3;
C = Confirming observation;
D = New linear solution. See Tables 6, 7, Figure 2 and Section 2.4;
E = It is unclear if the pair is physical or not. An orbit and common proper
motion indicates that it is, however, it appears to be equally well fit
by a linear determination;
V = Measure made by vector addition of other measured pairs in this multiple
system;
63 = 63 years since last measure;
125 = 125 years since last measure.
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History:
From electronic version of the journal
References:
Douglass et al., Paper I 1997ApJS..111..289D 1997ApJS..111..289D
Germain e tal., Paper II 1999AJ....117.1905G 1999AJ....117.1905G, Cat. J/AJ/117/1905
Germain e tal., 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 VIII 2002AJ....124.2254M 2002AJ....124.2254M, Cat. J/AJ/124/2254
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
(End) Prepared by [AAS], Tiphaine Pouvreau [CDS] 11-Apr-2019