J/AJ/127/539 Speckle interferometry at USNO. IX. (Mason+, 2004)
Speckle interferometry at the US naval observatory. IX.
Mason B.D., Hartkopf W.I., Wycoff G.L., Pascu D., Urban S.E., Hall D.M.,
Hennessy G.S., Rafferty T.J., Flagg L., Kang D., Ries P., Holdenried E.
<Astron. J., 127, 539-548 (2004)>
=2004AJ....127..539M 2004AJ....127..539M
ADC_Keywords: Stars, double and multiple ; Interferometry
Keywords: binaries: general - binaries: visual - techniques: interferometric
Abstract:
The results of 3056 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 1675 mean relative
positions and range in separation from 0.19" to 45.21", with a median
separation of 2.99". This is the ninth in a series of papers
presenting measures obtained with this system and covers the period
2002 January 1 through 2002 December 29. Included in these data are 28
older measures whose positions were previously deemed possibly
aberrant but are no longer classified this way following a confirming
observation. Nine of these systems have new orbital elements, which
are presented here as well.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 42 6 New WSI pairs
table2.dat 65 1485 Speckle Interferometric Measurements of Double Stars
table3.dat 114 191 Speckle Interferometric Measurements and Residuals
to Systems with Orbits
table4.dat 45 54 Binaries not found
table5.dat 56 9 New orbital elements
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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/124/2254 : Speckle interferometry at USNO. VIII. (Mason+, 2002)
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)
4- 5 I2 min RAm Right ascension (J2000)
7- 10 F4.1 s RAs Right ascension (J2000)
12 A1 --- DE- Declination sign (J2000)
13- 14 I2 deg DEd Declination (J2000)
16- 17 I2 arcmin DEm Declination (J2000)
19- 20 I2 arcsec DEs Declination (J2000)
22- 30 A9 --- Disc Discoverer designation (WSI NN AA)
32- 35 F4.1 mag vmag1 Estimated visual magnitude of component A
37- 40 F4.1 mag vmag2 ? Estimated visual magnitude of component B
42 I1 --- Notes Notes (1)
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Note (1): Individual notes are numbered as follows:
1 = Serendipitously found while searching for COU 652
2 = New pair found while examining the complex system STF 484/485.
The AQ and EQ pairings were also measured and are in Table 2
3 = New component to ES 2094; the precise coordinates are not certain
but should be confirmed in 2003. The tertiary magnitude is unknown
4 = Serendipitously found while searching for STF 2515
5 = New component to ES 2126
6 = Serendipitously found while searching for STF 2834
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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- 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- 29 A14 --- Disc Discoverer designation
31- 38 F8.3 yr Epoch Epoch of observation
40- 44 F5.1 deg PA Position angle (1)
45 A1 --- u_PA [:] Uncertainty flag for PA (2)
47- 51 F5.2 arcsec Sep Separation
52 A1 --- u_Sep [:] Uncertainty flag for Sep (2)
54- 55 I2 --- Num Number of observations contained in the mean
57- 64 A8 --- 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): Object notes as follows:
C = Confirming observation.
L = Linear elements determined (see Hartkopf et al., 2004, in prep.).
1 = This pair, first resolved with the 26 inch on 1974 August 11,
(Josties et al., 1974, PUSNO 22, Part 6), was confirmed on this
date in 2002.
2 = Assigned the designation BU 997a by Burnham (1906BDS...C......0B 1906BDS...C......0B),
despite being physically unrelated to BU 997. Redesignated BU 9001 to
avoid ambiguity.
3 = See also Table 1.
4 = This pair of the complex system, known for some time, never had this
pairing measured.
5 = This pair, first resolved with the 26 inch on 1896 March 16,
(Brown 1911, PUSNO 6, A117), was confirmed on this date in 2002.
6 = This pair, first resolved with the 26 inch on 1896 March 14,
(Brown 1911, PUSNO 6, A117), was confirmed on this date in 2002.
7 = This measure, made in 2000 was not included in Mason et al. (2001,
Cat. J/AJ/122/1586), as the measure was inconsistent with previous
measures. This measure confirms the large position change.
8 = This pair, first resolved with the 26 inch on 1895 June 21,
(Fredrickson, 1911, PUSNO 6, A117), was confirmed on this date in 2002.
9 = This pair, first resolved with the 26 inch on 1895 July 31,
(Fredrickson, 1911, PUSNO 6, A117), was confirmed on this date in 2002.
10 = This pair, first resolved with the 26 inch on 1921 October 27,
(Burton 1947, PUSNO, 2d Ser., 15, Part 4), was confirmed on this date
in 2002.
11 = Large change in position since the last measure.
12 = This pair, first resolved with the 26 inch on 1970 June 17,
(Worley, 1972, PUSNO, 2d Ser., 22, Part 4), was confirmed on this date
in 2002.
13 = This pair, first resolved with the 26 inch on 1895 September 15,
(Fredrickson 1911, PUSNO 6, A117), was confirmed on this date in 2002.
50-181 = 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- 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- 37 F8.3 yr Epoch ? Epoch of observation
39- 43 F5.1 deg PA ? Position angle
45- 49 F5.2 arcsec Sep ? Separation
51- 52 I2 --- Num ? Number of observations contained in the mean
54- 58 F5.1 deg (O-C)PA The O-C position angle residual
60- 64 F5.2 arcsec (O-C)Sep The O-C separation residual
66- 68 A3 --- n_Ref Flag on Ref (1)
70-114 A45 --- Ref Observation reference
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Note (1): Flags as follows:
* = System used in characterizing errors.
L = Linear elements determined (see Hartkopf et al., 2004, in prep.).
1 = This measure was inconsistent with previous measures and so was not
included in Mason et al., 2001, Cat. J/AJ/112/1586. However, available
data are deemed insufficient for a new orbital calculation at this time.
2 = This measure was inconsistent with previous measures and so was not
included in Mason et al., 2001, Cat. J/AJ/112/1586. The new orbit is
listed in Table 5, ephemerides based on these elements are listed in
Table 6, and the orbit is illustrated in Fig. 1. However, linear
elements may prove to be a more accurate representation of the motion
of this pair.
3 = This measure was inconsistent with previous measures and so was not
included in Mason et al., 2001, Cat. J/AJ/112/1586. The new orbit is
listed in Table 5, ephemerides based on these elements are listed in
Table 6, and the orbit is illustrated in Fig. 1 or Fig. 2.
4 = This system was expected to show significant motion over the calendar
year, so multiple observations have been obtained.
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- WDS Name based on 2000 coordinates (HHMMm+DDMM)
12- 22 A11 --- Disc Discoverer designation
24- 27 I4 yr Date Observation year
29- 31 I3 deg PA Published position angle
33- 35 F3.1 arcsec rho Published separation
37- 40 F4.1 mag vmag1 Visual magnitude of the primary
42- 45 F4.1 mag vmag2 Visual magnitude of the secondary
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- WDS Name based on 2000 coordinates (HHMMm+DDMM)
12- 22 A11 --- Disc Discoverer designation
24- 27 I4 yr Per Period
29- 32 F4.2 arcsec a Semi-major axis
34- 36 I3 deg i Inclination angle
38- 40 I3 deg Omega Longitude of the ascending node
42- 45 I4 yr T0 Time of perihelion passage
47- 50 F4.2 --- e Eccentricity
52- 54 I3 deg omega Longitude of perihelion
56 I1 --- Grade [1/5] Grade (1)
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Note (1): 1 = definitive to 5 = indeterminate (see Hartkopf et al.,
2001AJ....122.3472H 2001AJ....122.3472H)
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History:
From electronic version of the journal
27-Dec-2005: References standardized in table3
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 2001AJ....124.2254M 2001AJ....124.2254M, Cat. J/AJ/124/2254
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 Vannier [CDS] 16-Mar-2004