Nous présentons de nouveaux éléments orbitaux pour les étoiles doubles visuelles ADS 11979, ADS 12144 et ADS 12515. Ces éléments ont été obtenus en utilisant les dernières mesures que nous avons effectuées avec le tavelographe PISCO et le télescope Bernard Lyot du Pic du Midi, et celles déjà disponibles dans la littérature

Aristidi, Eric

Koechlin, Laurent

Prieur, Jean-Louis

Scardia, Marco

English

Nous présentons de nouveaux éléments orbitaux pour les étoiles doubles visuelles ADS 2616, 10140, 14748 et 15236. Ces éléments ont été obtenus en utilisant les dernières mesures que nous avons effectuées avec le tavelographe PISCO et le télescope Bernard Lyot de 2 m du Pic du Midi, et celles déjà disponibles dans la littérature

HAL-IRD

Eléments orbitaux d'étoiles doubles: ADS 2616, 10140, 14748 et 15236

HAL-INSU

Eléments orbitaux d'étoiles doubles: ADS 11979, ADS 12144 et ADS 12515

Archive Ouverte en Sciences de l'Information et de la Communication

HAL Id: hal-00339983
https://hal.archives-ouvertes.fr/hal-00339983
Submitted on 23 Nov 2019
HAL is a multi-disciplinary open access
archive for the deposit and dissemination of sci-
entific research documents, whether they are pub-
lished or not. The documents may come from
teaching and research institutions in France or
abroad, or from public or private research centers.
L’archive ouverte pluridisciplinaire HAL, est
destinée au dépôt et à la diffusion de documents
scientifiques de niveau recherche, publiés ou non,
émanant des établissements d’enseignement et de
recherche français ou étrangers, des laboratoires
publics ou privés.
Orbital elements of double stars: ADS 2616, 10140,
14748 and 15236
Marco Scardia, Jean-Louis Prieur, Laurent Koechlin, Eric Aristidi
To cite this version:
Marco Scardia, Jean-Louis Prieur, Laurent Koechlin, Eric Aristidi. Orbital elements of double stars:
ADS 2616, 10140, 14748 and 15236. Information circular - IAU Commission 26. Double stars, IAU,
2002, 146, pp.1. ￿hal-00339983￿
INTERNATIONAL ASTRONOMICAL UNION COMMISSION 26
(DOUBLE STARS)
INFORMATION CIRCULAR No. 146 (FEBRUARY 2002)
NEW ORBITS
ADS Name P T e 
(2000) 2002 Author(s)
2000Æ n a i ! Last ob. 2003
492 HU 1011 473
y
78 2278.94 0.479 155
Æ
7 95
Æ
3 0
00
42 OLEVIC &
00357+3429 0
Æ
7599 0
00
387 134
Æ
6 260
Æ
9 1997.689 94.9 0.42 JOVANOVIC
2616 STF 412 AB 522.16 1911.62 0.679 13.0 356.2 0.70 SCARDIA
03344+2428 0.6894 0.625 157.2 238.1 2000.107 355.8 0.70 et al. (*)
V 773 Tau 125.00 1998.62 0.643 101.1 97.4 0.104 DOCOBO
04142+2813 2.8800 0.249 63.8 299.4 2001.841 102.5 0.114 et al. (**)
FO Tau 194.00 2023.12 0.449 83.8 208.7 0.144 DOCOBO
04148+2813 1.8557 0.219 38.7 206.9 2001.841 211.7 0.143 et al. (**)
FS Tau 271.00 2035.73 0.168 18.0 94.7 0.231 DOCOBO
04220+2658 1.3284 0.272 19.7 138.0 2001.110 96.4 0.230 et al. (**)
DF Tau 92.80 1982.10 0.513 3.7 271.3 0.109 DOCOBO &
04271+2542 3.8793 0.134 135.4 318.4 1996.923 267.7 0.112 TAMAZIAN
FW Tau 242.00 2005.30 0.752 161.0 226.0 0.048 DOCOBO &
04295+2617 1.4876 0.180 23.0 114.2 1997.208 239.6 0.045 TAMAZIAN
4647 J 335 241.34 2095.90 0.765 81.5 277.6 1.209 OLEVIC &
06041+1101 1.4917 0.811 116.3 318.9 1991.87 277.4 1.210 JOVANOVIC
MCA 25 21.12 1991.58 0.871 124.7 189.5 0.100 MANTE I
06073+2641 17.0438 0.100 60.5 257.3 1995.9187 193.8 0.097
MCA 25 43.45 2001.51 0.0.000 3.5 5.6 0.108 MANTE II
06073+2641 8.2846 0.109 62.0 0.3 1995.9187 9.5 0.106
6584 J 420 217.14 1955.41 0.843 173.8 203.1 1.482 OLEVIC I
08062+0201 1.6579 2.197 105.1 134.8 1991.51 202.6 1.517
1
NEW ORBITS (ontinuation)
ADS Name P T e 
(2000) 2002 Author(s)
2000Æ n a i ! Last ob. 2003
6584 J 420 168.45 1954.17 0.778 176.0 199.8 1.55 OLEVIC II
08062+0201 2.1372 1.921 104.0 136.4 1991.51 199.3 1.58
CHR 130 13.23 1985.53 0.252 162.8 164.3 0.091 OLEVIC
08403+1921 27.2218 0.100 82.5 281.9 1997.13 168.6 0.083
MCA 35 8.00 1998.35 0.677 30.6 265.8 0.059 MANTE
11159+1318 44.9944 0.042 36.7 65.0 1993.1969 279.4 0.056
8387 A 1088 135.97 2011.68 0.896 22.8 343.0 0.118 OLEVIC &
12006+6911 2.6477 0.447 77.7 72.4 1993.20 346.5 0.119 JOVANOVIC
COU 596 33.30 1988.99 0.956 54.0 207.0 0.183 DOCOBO
12409+2708 10.8108 0.108 132.1 40.3 1997.126 206.3 0.185 & LING
8943 A 1095 187.53 2049.28 0.471 109.1 272.0 0.391 OLEVIC &
13336+2944 1.9197 0.331 37.8 298.2 1999.41 273.0 0.388 JOVANOVIC
9047 BU 614 AB 196.72 2013.84 0.568 114.1 113.5 0.348 ZIRM
13539+1008 1.8300 0.586 107.7 77.8 1995.42 112.1 0.334
10140 BU 953 AB 206.30 1898.50 0.425 142.6 80.0 0.24 SCARDIA
16366+6948 1.7450 0.407 111.9 258.8 1998.679 78.2 0.24 et al. (*)
STA 1 6.88 1986.03 0.159 22.1 19.5 0.091 OLEVIC &
17088+6543 52.3325 0.096 66.8 272.2 1994.71 42.3 0.082 JOVANOVIC
MLR 571 85.96 2004.31 0.417 1.0 248.9 0.077 ZIRM
17335+5734 4.1880 0.133 162.7 136.6 1997.1267 237.9 0.076
COU 1785 36.70 1997.07 0.362 54.2 278.3 0.028 DOCOBO
18035+4032 9.8093 0.135 80.3 171.5 1995.611 333.5 0.021 & LING
COU 321 354.12 1995.28 0.776 142.2 283.4 0.044 DOCOBO
19180+2012 1.0166 0.484 101.0 188.4 1998.679 265.2 0.036 & LING
DJU 4 862.97 2746.74 0.384 65.5 246.0 1.215 POPOVIC &
19535+2405 0.4172 1.183 80.7 96.3 1993.0 246.0 1.226 OLEVIC
13734 J 838 239.84 1967.51 0.784 103.0 114.2 6.029 OLEVIC
20210+1028 1.5010 7.451 77.6 258.1 1995. 114.5 6.67
2
NEW ORBITS (ontinuation)
ADS Name P T e 
(2000) 2002 Author(s)
2000Æ n a i ! Last ob. 2003
14748 HO 152 227.60 2022.68 0.326 137.1 122.5 0.25 SCARDIA
21125+2821 1.5817 0.388 68.3 26.7 1998.679 123.8 0.26 et al. (*)
15236 HU 280 166.85 1814.98 0.075 132.4 345.5 0.18 SCARDIA
21423+0555 2.1576 0.231 53.6 177.9 1998.663 347.8 0.17 et al. (*)
I 20 AB 982.79 1965.84 0.526 4.2 194.5 0.592 LING
22180-6249 0.3663 1.157 123.0 115.2 1996.820 193.8 0.598
16116 HU 391 AB 200.34 2004.23 0.651 208.2 310.5 0.142 ZIRM
22375+2356 1.7969 0.751 59.1 120.7 1994.90 329.1 0.152
16666 STF 3001 AB 1540.00 1678.51 0.409 66.3 220.2 3.268 DOCOBO &
23186+6807 0.2337 3.084 9.1 31.7 2000.513 220.4 3.273 ANDRADE
(*) SCARDIA, PRIEUR, KOECHLIN and ARISTIDI
(**) DOCOBO, TAMAZIAN and WOITAS
ANNOUNCEMENTS
For a variety of reasons, there exist a large subset of measures ontained in the WDS
database whih have not been published. To make these data available to the astronomial
ommunity we have made them aessible from the main WDS web page:
<http://ad.usno.navy.mil/wds/wdstext.html℄unpublished>.
It is antiipated that this setion will expand substantially as the data ontained in
the WDS are ollated.
Nils Wieth-Knudsen measures:
In late 2001, Inger Wieth-Knudsen made available to the U.S. Naval Observatory
the original measurement ards Dr. Nils Wieth-Knudsen made towards the end of his
distinguished areer. The original ards are ataloged in the James Melville Gillis Library
of the U.S. Naval Observatory. The 471 measures reorded on these ards are grouped
into 211 means of 59 systems, and inlude 33 measures of dierential magnitude. Made
with both 10 and 30 inh telesopes, the observation dates range from 1961.32 to 1989.34
and the measured separations range from 0.46 to 28.97 arseonds. These measures are
aessible at:
<http://ad.usno.navy.mil/wds/unpublished/wieth-knudsen.html>.
3
Walt Sanders measures:
Over the past years Walt Sanders has (and is) ontinuing his observing of primarily
wide M dwarf stars with a lar mirometer on the Lik 36-inh refrator. This ontinues
the work desribed in The Astronomial Journal (volume 71, page 1008; Deember 1966).
As of January 1, 2002 it onsisted of 219 measures averaged into 99 means of 69 pairs,
with observation dates from 1996.32 to 1998.70 (thusfar, observations ontinue) and the
measured separations range from 3.2 to 122.9. In three ases no separation is measured,
but the position angle is. These measures are aessible at:
<http://ad.usno.navy.mil/wds/unpublished/sanders.html>.
Also, in what (by some) ould be more properly haraterized as a labor of love, a web
page has been onstruted giving an overview of the history of double star researh at
the U.S. Naval Observatory. The history surveys the three major programs (mirometry,
photography, and spekle interferometry) and also provides numerous pitures, statistis,
a disussion of some binary disoveries, supplementary douments (obituaries, professional
summaries, et.), and notes to some of the more olorful haraters that have been at the
USNO over the years. This web page is:
<http://ad.usno.navy.mil/wds/ds
 
history.html>.
Brian D. Mason & William I. Hartkopf
U.S. Naval Observatory
|||||||||||||||||||||||||||||
\The Tyho Double Star Catalogue" by Fabriius C, Hg E, Makarov V V, Mason B D,
Wyo G L & Urban S E
I would like to draw your attention to the Tyho Double Star Catalogue, TDSC, whih
has just been aepted for publiation by A&A, and the orresponding les will beome
available from CDS.
Abstrat: We report the disovery of 13251 visual double stars, mostly with separa-
tions between 0.3 and 1 arse, from a dediated re-redution of the Tyho data from the
star mapper of the ESA Hipparos satellite. The new doubles are ombined with 18160
WDS systems identied in the Tyho-2 Catalogue, and 1220 new Tyho-2 doubles, to
form the Tyho Double Star Catalogue, TDSC, a atalogue of absolute astrometry and
BT, VT photometry for 66219 omponents of 32631 double and multiple star systems.
We also inlude results for 32263 single omponents for systems unresolved in TDSC, and
a supplement gives Hipparos and Tyho-1 data for 4777 additional omponents. The
TDS thus ontains a total of 103259 entries. Cross identiations are given to WDS, HD,
Hipparos and Tyho-2.
Claus Fabriius
4
PAPERS PUBLISHED IN 2001
1. BAGNUOLO, W. G.et al.:  Orionis Evidene for a Capture Origin Binary. Astro-
phys. J. 554 (1), 362 (2001).
2. BALEGA, I.I. et al.: Infrared Spekle Interferometry of Eleven Binaries Using a
Bispetral Analysis. Astron. Letters 27 (2), 117 (2001).
3. BENEDICT, G. F. et al.: Preise masses for Wolf 1062 AB from Hubble Spae
Telesope Interferometri astrometry and MDonald Observatory radial veloities.
Astron. J. 121 (3), 1607 (2001).
4. BODEN, A. F. & LANE, B. F.: A Preliminary Visual Orbit of BY Draonis. As-
trophys. J. 547 (2), 1071 (2001).
5. BRANDEKER, A.et al.: Disovery of a New Companion and Evidene of a Cir-
umprimary Disk: Adaptive Optis Imaging of the Young Multiple System VW
Chamaeleon. Astrophys. J. 561 (2), L199 (2001).
6. COURTOT, J. F. & ARGYLE, R. W.: Mirometri measures of Double Stars from
2000.0 to 2001.0. The Webb Soiety Double Star Setion, Cirular No. 9 (2001).
7. COURTOT, J. F.: The PPM and Hipparos Catalogues from a double star observer's
point of view. The Webb Soiety Double Star Setion, Cirular No. 9 (2001).
8. DOCOBO, J. A. et al.: Binary star spekle measurements at Calar Alto. I. Astron.
Astrophys. 366, 868 (2001).
9. DOCOBO, J. A. et al.: Catalog of Orbits and Ephemerides of Visual Double Stars
Ata Astronomia 51, 353 (2001).
10. DUCHNE, G. et al.: Visual binaries among high-mass stars Astron. Astrophys.
379, 147 (2001).
11. EGGLETON, P. P. & KISELEVA-EGGLETON, L.: Orbital Evolution in Binary
and Triple Stars, with an Appliation to SS Laertae. Astrophys. J. 562 (2), 1012
(2001).
12. GATEWOOD, G. et al.: Hipparos and MAP Studies of the Triple Star  Cephei.
Astrophys. J. 549 (2), 1145 (2001).
13. GERBALDI, M., FARAGGIANA, R. & BALIN, N.: Binary systems with post-T
Tauri seondaries Astron. Astrophys. 379, 162 (2001).
14. GERMAIN M. E. & DOUGLASS, G. G. Systemati eets in ICCD-Based spekle
interferometry of double stars. Astron. J. 121 (4), 2239 (2001).
15. GILI, R. & BONNEAU, D.: CCD measurements of visual double stars made with the
74 m and 50 m refrators of the Nie Observatory (2nd series) Astron. Astrophys.
378, 954 (2001).
5
16. HARTKOPF, W. I., MASON, B. D. & WORLEY, C. E.: The 2001 US Naval
Observatoru double star CD-ROM. II. The fth atalog of orbits of visual binary
stars. Astron. J. 122 (6), 3472 (2001).
17. HARTKOPF, W. I., MALISTER, H. A. & MASON, B. D.: The 2001 US Naval
Observatoru double star CD-ROM. III. The third atalog of interferometri mea-
surements of binary stars. Astron. J. 122 (6), 3480 (2001).
18. HORCH, E., NINIKOV, Z. & FRANZ, O. G.: CCD Spekle observations of binary
stars from the southern hemisphere. III. Dierential photometry. Astron. J. 121
(3), 1583 (2001).
19. HORCH, E. et al.: Spekle interferometry of southern double stars. II. Measures
form the CASLEO 2.15 meter telesope, 1995-1996. Astron. J. 121 (3), 1597
(2001).
20. HUMMEL, C. A. et al.: Orbital and stellar parameters of  Leonis from spetrosopy
and interferometry. Astron. J. 121 (3), 1623 (2001).
21. KIYAEVA, O. V. et al.: An astrometri study of the triple star ADS 48. Astron.
Letters 27 (6), 391 (2001).
22. LAMPENS, P. et al.: CCD photometry and astrometry for visual double and multiple
stars of the Hipparos atalogue. III. CCD photometry and dierential astrometry
for 253 southern \intermediate" systems Astron. Astrophys. 374, 132 (2001).
23. LAMPENS, P. & STRIGACHEV, A.: Multiolour observations of nearby visual
double stars. New CCD measurements and orbits Astron. Astrophys. 368, 572
(2001).
24. LANE, B. F.et al.: The Orbit of the Brown Dwarf Binary Gliese 569B. Astrophys.
J. 560 (1), 390 (2001).
25. LE CONTEL, D., VALTIER, J. C. & BONNEAU, D.: SIDONIE: A gateway for
visual double stars studies Astron. Astrophys. 377, 496 (2001).
26. LING, J. F., MAGDALENA, P. & PRIETO, C: Perturbations by Mass Loss in the
Orbital Elements of  Persei and  Centauri. Rev. Mex. A. A., 37 179 (2001).
27. MALKOV, O. & ZINNECKER, H.: Binary stars and the fundamental initial mass
funtion. MNRAS, 321 (1), 149 (2001).
28. MARCHETTI, E., FARAGGIANA, R. & BONIFACIO, P.: A spekle interferometry
survey of Bootis stars Astron. Astrophys. 370, 524 (2001).
29. MASON, B. D. et al.: Spekle interferometry of new and problem Hipparos binaries.
II. Observations obtained in 1998-1999 from MDonald Observatory. Astron. J. 121
(6), 3224 (2001).
30. MASON, B. D. et al.: The 2001 US Naval Observatoru double star CD-ROM. I.
The Washington double star atalog. Astron. J. 122 (6), 3466 (2001).
6
31. MASON, B. D. et al.: Spekle interferometry at the US Naval Observatory. III.
Astron. J. 122 (3), 1586 (2001).
32. MCARTHY, C., ZUCKERMAN, B. & BECKLIN, E. E.: Disovery of 14 nearby
double stars. Astron. J. 121 (6), 3259 (2001).
33. MOREL, P. et al.: The Herulis binary system revisited Astron. Astrophys. 379,
245 (2001).
34. PREIBISCH, T. et al.: High-resolution near-infrared study of the deeply embedded
young stellar objet S140 IRS 3 Astron. Astrophys. 378, 359 (2001).
35. PRIEUR, J. L. et al.: Spekle observations of binary systems measured by Hipparos
Astron. Astrophys. 367, 865 (2001).
36. SALAMAN, M., MORLET, G. & GILI, R.: Nie Observatory CCD measurements
of visual double stars (3rd series) Astron. Astrophys. 366, 552 (2001).
37. SCARDIA, M. et al.: Orbital elements of six visual binary stars. Astron. Nah.
322 (3), 161 (2001).
38. SHATSKY, N.: The long-period ompanions of multiple stars tend to have moderate
eentriities Astron. Astrophys. 380, 238 (2001).
39. STEFFEN, A. T.et al.: A dynamial mass onstraint for the pre-main sequene
evolutionary traks: the binary NTT 045251+3016. Astron. J. 122 (2), 997 (2001).
40. TOKOVININ, A. A. & GORYNYA, N. A.: New spetrosopi omponents in mul-
tiple systems. IV. Astron. Astrophys. 374, 227 (2001).
41. TURNER, N. H. et al.: Searh for faint ompanions to nearby solar-like stars using
the adaptative optis system at Mount Wilson Observatory. Astron. J. 121 (6),
3254 (2001).
42. WHITE, R. J. & GHEZ, A. M.: Observational Constraints on the Formation and
Evolution of Binary Stars. Astrophys. J. 556 (1), 265 (2001).
43. WOITAS, J., KHLER, R. & LEINERT, Ch.: Orbital motion in T Tauri binary
systems Astron. Astrophys. 369, 249 (2001).
44. WOITAS, J., LEINERT, Ch. & KHLER, R.: Mass ratios of the omponents in T
Tauri binary systems and impliations for multiple star formation Astron. Astro-
phys. 376, 982 (2001).
45. WORLEY, C. E., MASON, B. D. & WYCOFF, G. L.: The 2001 US Naval Ob-
servatory double star CD-ROM. IV. The photometri magnitude dierene atalog.
Astron. J. 122 (6), 3482 (2001).
7
***********************************************************************
The deadline for ontributions to Information Cirular No. 147 is:
June 15th 2002
J. A. Doobo (oadoous.es)
J. F. Ling (oafanaus.es)
Tel. +34 981592747
Fax: +34 981597054
Observatorio Astronomio R. M. Aller
P. O. Box 197
http://www.us.es/astro
Universidade de Santiago de Compostela
SPAIN
ISSN: 1024-7769
8


HAL-UNICE

HAL Id: hal-00339964
https://hal.archives-ouvertes.fr/hal-00339964
Submitted on 23 Nov 2019
HAL is a multi-disciplinary open access
archive for the deposit and dissemination of sci-
entific research documents, whether they are pub-
lished or not. The documents may come from
teaching and research institutions in France or
abroad, or from public or private research centers.
L’archive ouverte pluridisciplinaire HAL, est
destinée au dépôt et à la diffusion de documents
scientifiques de niveau recherche, publiés ou non,
émanant des établissements d’enseignement et de
recherche français ou étrangers, des laboratoires
publics ou privés.
Orbital elements of double stars: ADS 11979, ADS
12144 and ADS 12515
Marco Scardia, Jean-Louis Prieur, Laurent Koechlin, Eric Aristidi
To cite this version:
Marco Scardia, Jean-Louis Prieur, Laurent Koechlin, Eric Aristidi. Orbital elements of double stars:
ADS 11979, ADS 12144 and ADS 12515. Information circular - IAU Commission 26. Double stars,
IAU, 2001, 144, pp.1. ￿hal-00339964￿
INTERNATIONAL ASTRONOMICAL UNION COMMISSION 26
(DOUBLE STARS)
INFORMATION CIRCULAR No. 144 (JUNE 2001)
NEW ORBITS
ADS Name P T e 
(2000) 2001 Authors
2000Æ n a i ! Last ob. 2002
149 A 802 269
y
52 1972.51 0.511 125
Æ
6 124
Æ
8 0
00
202 MASON &
00122+4647 1
Æ
3357 0
00
260 108
Æ
8 266
Æ
6 1991.25 124.2 0.206 HARTKOPF
I 260 CD 44.66 2012.84 0.740 63.3 273.9 0.560 MASON &
00315-6257 8.0609 0.404 146.9 303.7 1999.7839 271.4 0.541 HARTKOPF
691 A 922 106.44 2058.04 0.990 178.8 338.5 0.464 MASON &
00508+3203 3.3822 0.786 83.8 286.7 1999.731 338.6 0.467 HARTKOPF
1865 A 2329 25.32 1988.16 0.237 108.7 130.9 0.430 ANDRADE
02278+0426 14.2180 0.559 73.3 233.2 1996.6965 139.1 0.351
2911 HU 27 385.26 2038.01 0.692 170.8 321.4 0.345 LING
03591+0948 0.9344 0.849 73.6 263.1 1997.07 322.5 0.348
3438 A 1544 AB 76.81 1961.22 0.423 125.3 205.9 0.157 DOCOBO
04475+4324 0.4.6869 0.159 133.5 93.6 1995.08 202.9 0.157
I 345 191.0 1994.17 0.640 52.1 306.6 0.11 ALZNER &
05248-5219 1.8848 0.300 142.7 38.4 1993.09 298.8 0.12 ARGYLE
MLR 314 46.76 1985.61 0.564 160.7 223.6 0.164 MANTE
05372+4148 7.6989 0.251 65.4 280.0 1993.2023 229.9 0.161
DUN 23 304.2 2047.34 0.592 132.4 119.5 2.60 SCARDIA
06048-4828 1.1834 3.26 73.0 87.1 1997.095 119.9 2.59
5042 STT 139 360.3 1929.06 0.894 183.8 255.9 0.54 SCARDIA
06256+2227 0.9992 0.674 56.6 276.3 1997.410 256.3 0.54
5752 A 519 45.94 2019.54 0.564 101.6 255.5 0.185 DOCOBO
07043-0303 7.8363 0.323 101.1 44.6 1997.10 251.1 0.159 & LING
1
NEW ORBITS (ontinuation)
ADS Name P T e 
(2000) 2001 Authors
2000Æ n a i ! Last ob. 2002
7010 A 2551 69.56 1950.27 0.706 121.6 78.1 0.191 MASON &
08486+0237 5.1754 0.165 47.4 103.1 1990.03 80.0 0.189 HARTKOPF
FIN 348 469.61 2443.09 0.706 90.9 320.2 0.179 MASON &
09243-3926 0.7666 0.492 121.3 12.7 1993.0955 318.2 0.187 HARTKOPF
COP 1 33.95 1969.68 0.433 291.0 278.1 0.566 MASON &
09307-4028 10.6038 0.862 58.0 44.3 1997.1176 290.4 0.537 HARTKOPF
7780 HU 879 38.62 1999.15 0.668 41.5 197.9 0.082 MASON &
10279+3642 9.3216 0.363 79.1 29.8 1997.1259 210.3 0.169 HARTKOPF
7846 BU 411 170.14 1948.39 0.765 145.1 310.6 1.337 SCARDIA
10361-2641 2.1159 0.886 128.2 37.9 1998.140 310.2 1.343
8048 A 676 BC 23.23 1995.22 0.119 71.7 269.1 0.301 DOCOBO
11047-0413 15.4972 0.343 62.6 111.2 1997.2682 279.5 0.266 & LING
COU 100 73.12 2016.11 0.754 196.1 238.8 0.154 MASON &
14459+2344 4.9234 0.297 106.4 79.6 1997.2740 235.5 0.157 HARTKOPF
COU 100 65.94 2013.83 0.653 8.8 229.2 0.149 MANTE
14459+2344 5.4595 0.254 110.3 254.1 1997.449 225.1 0.152
9730 HU 1168 88.79 1984.66 0.620 129.1 305.3 0.436 DOCOBO
15370+6426 4.0545 0.392 121.7 50.7 1997.52 304.0 0.449 & LING
9918 FIN 384 Aa 4.95 1988.94 0.619 147.8 278.3 0.061 MASON &
16057-0617 72.7272 0.071 116.0 76.3 1996.1842 233.4 0.048 HARTKOPF
A 9970 STF 2028 114.0 1992.65 0.570 145.0 129.8 0.12 ALZNER
16128+3922 3.1579 0.380 81.4 212.6 1992.22 132.8 0.15
SEE 271 71.58 1993.89 0.682 256.3 81.3 0.303 MASON &
16193-4240 5.0293 0.383 62.3 71.4 1991.25 83.8 0.324 HARTKOPF
HJ 5014 450.0 1854.7 0.650 85.8 6.7 1.70 ALZNER &
18068-4325 0.8000 2.04 123.1 282.7 1999.79 6.2 1.70 ARGYLE
2
NEW ORBITS (ontinuation)
ADS Name P T e 
(2000) 1998 Authors
2000Æ n a i ! Last ob. 1999
11979 HU 757 BC 115.9 1991.06 0.284 84.6 171.1 0.078 SCARDIA
19021+5216 3.1061 0.234 115.0 217.4 1998.679 160.2 0.081 et al. (*)
11998 A 2992 99.00 1951.17 0.835 125.9 68.4 0.223 DOCOBO
19039+2642 3.6364 0.256 114.5 255.0 1997.471 67.3 0.221 & LING
12144 A 1391 138.1 1979.71 0.396 64.4 345.6 0.15 SCARDIA
19106+5429 2.6068 0.251 50.2 175.7 1998.679 349.8 0.15 et al. (*)
12515 A 1653 245.7 1875.18 0.017 170.0 166.1 0.22 SCARDIA
19296+1224 1.4652 0.215 178.0 179.7 1998.673 164.7 0.22 et al. (*)
FIN 358 50.11 1976.55 0.828 178.2 118.4 0.143 MASON &
21536-1019 7.1842 0.089 31.5 117.1 1996.5348 119.7 0.144 HARTKOPF
11296 HO 566 93.91 1970.51 0.785 159.8 144.6 0.470 MASON &
18236-2610 3.8330 0.386 106.4 236.9 1991.3927 144.2 0.469 HARTKOPF
(*) SCARDIA, PRIEUR, KOECHLIN and ARISTIDI
ANNOUNCEMENT
The Ramon Mara Aller Observatory at the University of Santiago de Compostela,
Spain, has ompleted its rst Catalogue of Orbits and Ephemerides of Visual Double
Stars. At the International Workshop held in Santiago de Compostela in 1996 it was
announed that this Catalogue would be heir to the ephemerides atalogues edited at the
Nie Observatory by Muller, Meyer, and Couteau, Morel and Fulonis; however, it has
been extended to inlude orbits, and now lists orbits up to the end of the year 2000.
In our orbital seletion, it has been our basi riterion to not replae any early orbit
exept for those reasonably improved by subsequent one. We believe that it will make a
welome ompanion to the USNO 5th Orbit Catalog, of interest to both Commission 26
members and astronomers in general.
3
In all, the new Catalogue ontains 1545 orbits for 1208 systems. Eah binary has been
assigned a letter (A, B or C) indiating its urrent status as regards the possibility of
alulating a reliable orbit. This lassiation has been arried out on the basis of the ar
desribed, the number and nature of the available observations, and/or whether losely
similar orbits have been alulated independently by dierent authors. Notes indiate the
existene of other omponents of the system, whether it is also a spetrosopi binary,
whether it has an astrometri orbit, et.
The elements of eah orbit are aompanied by a referene to the original publiation,
the ephemerides will be predited within the next few years, and letters indiating suh
information as the equinox to whih the node is referred, or whether the elements of the
orbit as originally published were awed by typographial errors. New orbits will be in-
luded as they beome available.
The Catalogue may be onsulted on-line via internet at http://www.us.es/astro/atalog
J. A. Doobo, J. F. Ling, C. Prieto, J. M. Costa, M. T. Costado & P. Magdalena
Observatorio Astronomio Ramon Mara Aller
Universidade de Santiago de Compostela
Spain
***********************************************************************
The deadline for ontributions to Information Cirular No. 145 is:
Otober 15th 2001
J. A. Doobo (oadoous.es)
J. F. Ling (oafanaus.es)
Tel. (81) 59 27 47
Fax: (81) 59 70 54
Observatorio Astronomio R. M. Aller
P. O. Box 197
http://www.us.es/astro
Universidade de Santiago de Compostela
SPAIN
ISSN: 1024-7769
4


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Eléments orbitaux d'étoiles doubles: ADS 11979, ADS 12144 et ADS 12515

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