J/AJ/154/183 Speckle interferometry at the USNO. XXII. (Mason+, 2017)
Speckle interferometry at the U.S. Naval Observatory. XXII.
Mason B.D., Hartkopf W.I.
<Astron. J., 154, 183 (2017)>
=2017AJ....154..183M 2017AJ....154..183M (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Interferometry
Keywords: binaries: general - binaries: visual -
stars: individual (BD+32 1731, HD 183063, HD 193651) -
techniques: interferometric
Abstract:
The results of 4747 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 2667 mean
relative positions and range in separation from 0.328" to 95.9", with
a median separation of 8.673". Eight orbits are improved. This is the
22nd in this series of papers and covers the period 2016 January 4
through 2016 December 29.
Description:
This is the 22nd 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 et al. 2017, J/AJ/153/20).
From 2016 January 4 through December 29, the 26 inch telescope was used
on 67 of 216 (31%) scheduled nights.
Individual nightly totals varied substantially, from 7 to 200 observations
per night (mean 71.3). The results yielded 4747 observations
(pointings of the telescope) and 4795 resolutions (pairs measured).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 60 7 New Pairs
table3.dat 108 26 Data Mining Measures for New Pairs
table4.dat 143 2324 ICCD Measurements of Double Stars
table5.dat 143 180 ICCD Measurements of Double Stars with
Orbit & Linear Residuals
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See also:
B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2014)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
B/denis : The DENIS database (DENIS Consortium, 2005)
II/311 : WISE All-Sky Data Release (Cutri+ 2012)
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/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+, 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/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/AJ/143/124 : Speckle interferometry at the USNO. XVIII. (Mason+, 2012)
J/AJ/146/56 : Speckle interferometry at the USNO. XIX. (Mason+, 2013)
J/AJ/150/136 : Speckle interferometry at USNO. XX. (Hartkopf+, 2015)
J/AJ/153/20 : Speckle interferometry at USNO. XXI. (Mason+, 2017)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Hour of Right Ascension (J2000)
4- 5 I2 min RAm Minute of Right Ascension (J2000)
7- 11 F5.2 s RAs Second of Right Ascension (J2000)
13 A1 --- DE- Sign of the Declination (J2000)
14- 15 I2 deg DEd Degree of Declination (J2000)
17- 18 I2 arcmin DEm Arcminute of Declination (J2000)
20- 23 F4.1 arcsec DEs Arcsecond of Declination (J2000)
25- 34 A10 --- WDS WDS designation (HHMMm+DDMM, J2000)
36- 46 A11 --- Disc Discoverer designation (where WSI = Washington
Stellar Interferometer)
48- 52 F5.2 mag mag1 [10.6/11.9] Visual magnitude of the primary
54- 58 F5.2 mag mag2 [11.95/13.6] Visual magnitude of the secondary
60 I1 --- Note [1/4]? Note about the circumstance of
the discovery (1)
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Note (1): Note as follows:
1 = Physicality status unknown, but closer than the known pair;
2 = AG and AH both in WDS. This is a closer, smaller Δm pairing in this
multiple system;
3 = This is a common proper motion pair. Based on proper motion the A
component appears non-physical;
4 = Magnitudes are red, not visual.
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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- 10 A10 --- WDS WDS designation (HHMMm+DDMM, J2000)
12- 22 A11 --- Disc Discoverer designation (where WSI = Washington
Stellar Interferometer)
24- 32 F9.4 yr Epoch [1899.13/2010.5] Epoch of observation (expressed
as a fractional Julian year)
34- 38 F5.1 deg theta [46.6/290.4] Position angle θ
40- 45 F6.3 arcsec rho [4.437/20.594] Angular separation ρ
47- 51 A5 --- Source Source of the measure
53- 75 A23 --- Ref Reference
77- 95 A19 --- BibCode BibCode of the reference
97-108 A12 --- Cat VizieR catalog name
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Byte-by-byte Description of file: table4.dat table5.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- WDS WDS designation (HHMMm+DDMM, J2000)
12- 26 A15 --- Disc Discoverer designation
28- 35 F8.3 yr Epoch [2002.172/2017] Epoch of observation (expressed
as a fractional Julian year)
37- 41 F5.1 deg theta [0.1/359.7] Position angle θ
43- 45 F3.1 deg e_theta [0/0.8] Uncertainty in theta (1)
47- 52 F6.3 arcsec rho [0.328/95.916] Angular separation ρ
54- 58 F5.3 arcsec e_rho [0/0.326] Uncertainty in rho (2)
60 I1 --- Nobs [1/4] Number of observation(s) in the mean
position (3)
62- 65 F4.1 deg (O-C)t [-6.3/6.6]? Position angle (O-C) residual
(only in Table 5)
67- 72 F6.3 arcsec (O-C)r [-0.564/0.928]? Separation (O-C) residual
(only in Table 5)
74-101 A28 --- Ref Reference (only in Table 5)
103-139 A37 --- BibCode BibCode of the reference (if available) or
online version website (only in Table 5)
141-143 A3 --- Note Object note(s) (4)
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Note (1): This is the internightly rms value if one is available or the mean
value of 0.2° if it is not.
Note (2): The error is its internightly value or the mean error (=0.0034ρ).
Note (3): When this is "1", the errors in columns "e_theta" and "e_rho" are the
mean results as described above (Notes 1 and 2).
Note (4): Note as follows:
A = This would have been published in an earlier paper in this series, but
given the large change in position this measure was not published until
its confirmation;
B = First measure of this pair. See Tables 2 & 3;
C = Confirming observation;
D = Residuals indicate this system should be monitored for possible
orbit improvement;
E = Residuals indicate this linear solution may be ready for update soon;
F = Two solutions in Kiselev et al. (2009ARep...53..126K 2009ARep...53..126K). The one whose
residuals are given here (Ω=242°) is definitely better;
G = Two solutions in Kiselev et al. (2009ARep...53..126K 2009ARep...53..126K). The one whose
residuals are given here (Ω=290°) is definitely better.
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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 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 XXIII 2018AJ....156..240M 2018AJ....156..240M
(End) Prepared by [AAS], Tiphaine Pouvreau [AAS] 24-Jul-2018