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Doubles in session


Current system
17104-1544
BU 1118 AB
Sabik


Nearby doubles
16' : 17113-1537
RST3968

24' : 17120-1547
FOX 18AB

26' : 17100-1604
FOX 197

28' : 17104-1611
FOX 198

34' : 17106-1617
KNP 5

40' : 17117-1619
KPP1320

46' : 17101-1458
RST3967

48' : 17071-1549
KPP 751

48' : 17136-1534
LSC 71

49' : 17115-1630
HU 169

77' : 17156-1558
FOX 19AB

80' : 17136-1648
TDT 267

87' : 17159-1511
RST3970

100' : 17153-1435
BU 282

104' : 17037-1506
KPP 388

106' : 17058-1422
HU 165

111' : 17086-1356
KPP 392

120' : 17093-1345
LSC 69AB

121' : 17105-1343
HDS2425

121' : 17082-1347
NSN 140

122' : 17065-1356
STF2119

122' : 17120-1344
KPP2766

125' : 17186-1622
ARA 87AB

126' : 17167-1709
STN 34

126' : 17108-1748
GWP2697

134' : 17196-1603
ARA 6



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

17104-1544 BU 1118 AB (Sabik)

 
 
17h 10m 22.66s -15° 43' 30.5" P.A. 222.00 sep 0.3 mag 3.05,3.27 Sp A1IV+A1IV dist. 27.09 pc (88.37 l.y.)
 
 
Coord 2000 17104-1544 Discov num BU 1118 Comp AB Coord arcsec 2000 17 10 22.66 -15 43 30.5
Date first 1889 Date last 2023 Obs 252
Pa first 274 Pa last 221.5 P.A. Now (θ) 33° (calc)
Sep first 0.4 Sep last 0.25 Sep. Now (ρ) 0.275" (calc)
Mag pri 3.05 Mag sec 3.27 delta mag (ΔM) 0.22 Spectral class A1IV+A1IV (white/white)
Pri motion ra +045 Sec motion ra
Pri motion dec +064 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
17104-1544 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Sabik 160332 17 10 23 -15 43 30 BU 1118 AB 2023 252 222 0.3 3.05 3.27 0.22 Y <===
Show Eta Oph 160332 17 10 23 -15 43 30 BU 1118 AB,C 2012 6 148 99.8 2.42 12.34 9.92
Show Sabik 160332 17 10 23 -15 43 30 BU 1118 AD 2012 8 281 101.2 2.42 11.20 8.78
Show Sabik 160332 17 10 23 -15 43 30 DAL 52 AE 2012 2 317 62.7 2.42 11.10 8.68

0 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Sabik Constellation Ophiuchus SAO 160332 HIP 84012
Tycho2 6232-01333-1 HD 155125 HR 6378 GC 23158
ADS 10374 BD BD-15 4467 Bayer Eta Ophiuchi Bayer name Eta Oph
Flamsteed 35 Ophiuchi Flamsteed name 35 Oph Distance 27.09 Distance ly 88.37
Bayer greek η Oph
 
 
ORBITAL ELEMENTS
 
 
Period (P)87.76y± 1.1 Periastron (T)2024.47y± 0.15 Semi-major axis (a)1.307a± 0.105
Eccentricity (e)0.942± 0.021 Inclination (i)95.6°± 1 Longitude of periastron (ω)275.3°± 1
Node (Ω)39.2°± 1 Notesn ReferenceDoc2023c
Equinox2000 Last observation2023 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 242.0 0.542
2001 241.2 0.549
2002 240.5 0.556
2003 239.7 0.563
2004 239.0 0.569
2005 238.3 0.574
2006 237.6 0.578
2007 237.0 0.582
2008 236.3 0.585
2009 235.6 0.587
2010 235.0 0.587
2011 234.3 0.587
2012 233.6 0.585
2013 232.9 0.582
2014 232.3 0.576
2015 231.6 0.569
2016 230.8 0.559
2017 230.1 0.546
2018 229.3 0.530
2019 228.4 0.509
2020 227.5 0.481
2021 226.4 0.445
2022 225.1 0.395
2023 223.4 0.320
2024 219.6 0.174
2025 37.3 0.180
2026 33.0 0.275
2027 30.4 0.315
2028 28.2 0.335
2029 26.2 0.346
2030 24.3 0.351
2031 22.5 0.352
2032 20.6 0.351
2033 18.7 0.347
2034 16.8 0.342
2035 14.8 0.336
2036 12.7 0.329
2037 10.6 0.321
2038 8.3 0.313
2039 5.9 0.304
2040 3.3 0.296
2041 0.6 0.287
2042 357.8 0.279
2043 354.7 0.271
2044 351.5 0.264
2045 348.1 0.257
2046 344.5 0.250
2047 340.8 0.244
2048 336.9 0.239
2049 332.8 0.235
2050 328.6 0.232


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds17104-1544d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS 17104-1544 BU 1118 AB (Sabik) : NOTES
 
 
discov_num notes refcode
BU 1118 eta Oph = 35 Oph = Sabik.
Smyth notes an additional wide companion (1833.61, 260.5deg, 269") Smy1844
Measure of 1989.388 made by MAPPIT. This measure had an identification Han1989
error, position error, or misprint in the publication, which has been
corrected. Measure of 1990.37 also made by MAPPIT. Rbt1991
Difficult a/e correlation, needs 20 more years of speckle observations Sod1999
Spectral types and masses of components assigned by ten Brummelaar TtB2000
et al.
AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 7.05 +/- 0.51, 3.61, and 4.58 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Doc2023c orb - Docobo, J.A., Campo, P., Mendez, R.A., & Costa, E. 2023IAUDS.211....1D
Doc2023c Inf. Circ. 211, 1, 2023
Han1989 Sa j Haniff, C.A., Buscher, D.F., Christou, J.C., & Ridgway, S.T. 1989MNRAS.241P..51H
Han1989 MNRAS 241, 51P-56P, 1989
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Rbt1991 Sa - Robertson, J.G., Bedding, T.R., Marson, R.G., Gillingham, P.R., Frater, R.H., .
Rbt1991 O'Sullivan, J.D., & Norris, R.P.
Rbt1991 Proc. ASA, 9, 162-163, 1991
Smy1844 Ma - Smyth, W.H. 1844QB43.S66.......
Smy1844 Cycle of Celestial Objects 2, 1844
Sod1999 orb - Soderhjelm, S. 1999A&A...341..121S
Sod1999 A&A 341, 121, 1999
TtB2000 Ac j ten Brummelaar, T.A., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr., 2000AJ....119.2403T
TtB2000 Turner, N.H., Hartkopf, W.I., & Bagnuolo, W.G., Jr.
TtB2000 AJ 119, 2403, 2000 (magnitude differences from Mt. Wilson AO)
 
 
DISCOVERER
 
 
discov author
BU Burnham, S.W. (BU 1 - 81)
DOC Docobo, J.A., Andrade, M., Ling, J.F., Prieto, C., Tamazian, V.S., Balega, Yu.Yu.,
DOC Blanco, J., Maximov, A.F., et al.
DOC Docobo, J.A., Tamazian, V.S., Andrade, M., Ling, J.F., Balega, Y.Y.,
DOC Lahulla, J.F., & Maximov, A.
DOC Docobo, J.A., Tamazian, V.S., Balega, Y.Y., Andrade, M., Schertl, D., Weigelt, G.,
DOC Campo, P., & Palacios, M.
DOC Docobo, J.A., Tamazian, V.S., Andrade, M., Ling, J.F., Balega, Y.Y.,
DOC Lahulla, J.F., & Maximov, A.
DOC Highlights of Spanish Astrophysics V, Ap&SS Proc. (Springer-Verlag, Berlin),
DOC p 491, 2010 (no data)
RBT Robertson, J.G., Bedding, T.R., Marson, R.G., Gillingham, P.R., Frater, R.H.,
RBT O'Sullivan, J.D., & Norris, R.P.
TTB ten Brummelaar, T.A., Mason, B.D., Bagnuolo, W.G., Jr., Hartkopf, W.,
TTB McAlister, H.A., & Turner, N.H.
TTB ten Brummelaar, T.A., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr.,
TTB Turner, N.H., Hartkopf, W.I., & Bagnuolo, W.G., Jr.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
17104-1544 BU 1118 AB 2008 245 240 0.6 3.05 3.27 A1IV+A1IV -15 4467 NOD 171022.66-154330.5
17104-1544 BU 1118 AB 2009 257 235 0.6 3.05 3.27 A1IV+A1IV -15 4467 NOD 171022.66-154330.5
17104-1544 BU 1118 AB 2010 257 235 0.6 3.05 3.27 A1IV A1IV -15 4467 NO 171022.66-154330.5
17104-1544 BU 1118 AB 2014 222 232 0.6 3.05 3.27 A1IV A1IV -15 4467 NO 171022.66-154330.5
17104-1544 BU 1118 AB 2016 225 231 0.6 3.05 3.27 A1IV+A1IV -15 4467 NO 171022.66-154330.5
17104-1544 BU 1118 AB 2017 229 230 0.5 3.05 3.27 A1IV+A1IV -15 4467 NO 171022.66-154330.5
17104-1544 BU 1118 AB 2018 232 229 0.5 3.05 3.27 A1IV+A1IV -15 4467 NO 171022.66-154330.5
17104-1544 BU 1118 AB 2019 242 228 0.5 3.05 3.27 A1IV+A1IV -15 4467 NO 171022.66-154330.5
17104-1544 BU 1118 AB 2021 246 225 0.4 3.05 3.27 A1IV+A1IV -15 4467 NO 171022.66-154330.5
17104-1544 BU 1118 AB 2023 252 222 0.3 3.05 3.27 A1IV+A1IV -15 4467 NO 171022.66-154330.5

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 17104-1544 BU 1118 AB (Sabik) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17104-1544 BU 1118 AB (Sabik) : MEASURES
 
 
No records found.

 
 
WDS 17104-1544 (Sabik) : VIRTUAL EYEPIECE
 
 

17104-1544 BU 1118A mag 3.05 Sp A1IV 17104-1544 BU 1118B sep 0.2 P.A. 221.50 mag 3.27 Sp A1IV 17104-1544 BU 1118C sep 99.8 P.A. 148.00 mag 12.34 Sp A1IV 17104-1544 BU 1118D sep 101.2 P.A. 281.00 mag 11.2 17104-1544 DAL 52E sep 62.7 P.A. 316.50 mag 11.1 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 17104-1544 (Sabik) : ALADIN DSS IMAGE @ 17h 10m 22.66s -15° 43' 30.5"
 
 
 
 
WDS 17104-1544 BU 1118 AB (Sabik) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17104-1544 BU 1118AB (Sabik) distance=0' 17113-1537 RST3968 distance=16' 17120-1547 FOX 18CD distance=24' 17120-1547 FOX 18AB distance=24' 17120-1547 FOX 18AB,C distance=24' 17100-1604 FOX 197 distance=26' 17104-1611 FOX 198 distance=28' 17106-1617 KNP 5 distance=34' 17117-1619 KPP1320 distance=40' 17101-1458 RST3967 distance=46' 17071-1549 KPP 751 distance=48' 17136-1534 LSC 71 distance=48' 17115-1630 HU 169 distance=49' 17139-1536 GKM9370Aa,Ab distance=53' 17139-1536 GKM9370Aa,B distance=53' 17156-1558 FOX 19AB distance=77' 17156-1558 FOX 19AC distance=77' 17136-1648 TDT 267 distance=80' 17159-1511 RST3970 distance=87' 17153-1435 BU 282 distance=100' 17037-1506 KPP 388 distance=104' 17058-1422 HU 165 distance=106' 17086-1356 KPP 392 distance=111' 17093-1345 LSC 69AB distance=120' 17105-1343 HDS2425 distance=121' 17082-1347 NSN 140 distance=121' 17065-1356 STF2119 distance=122' 17120-1344 KPP2766 distance=122' 17186-1622 ARA 87AB distance=125' 17167-1709 STN 34 distance=126' 17108-1748 GWP2697 distance=126' 17196-1603 ARA 6 distance=134' 17100-1801 HU 168 distance=138' 17126-1759 LSC 70 distance=140' 17156-1343 KPP 394 distance=142' 17008-1613 UC 3273 distance=142' 17030-1719 RST3063 distance=143' 17080-1802 HO 650 distance=143' 17161-1744 FEN 22 distance=146' 17111-1809 TDT 256 distance=147' 17198-1449 BRT2742 distance=147' 17040-1742 RST3066 distance=150' 17138-1807 ARA 247 distance=152' 17091-1815 HJ 4923 distance=153' 17159-1330 HDS2441 distance=157' 17001-1639 HDS2406 distance=158' 17014-1715 RST3061 distance=159' 17056-1807 ARA 245 distance=159' 17217-1542 FOX 199BC distance=164' 17217-1542 FOX 199AB distance=164' 17217-1542 FOX 199AC distance=164' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show Sabik 17104-1544 BU 1118 AB 222 0.3 0
Show Sabik 17104-1544 BU 1118 AD 281 101.2 0
Show 17104-1544 BU 1118 AB,C 148 99.8 0
Show Sabik 17104-1544 DAL 52 AE 317 62.7 0
Show 17113-1537 RST3968 285 0.5 16
Show 17120-1547 FOX 18 CD 248 13.8 24
Show 17120-1547 FOX 18 AB 50 2.1 24
Show 17120-1547 FOX 18 AB,C 340 115.9 24
Show 17100-1604 FOX 197 112 14.5 26
Show 17104-1611 FOX 198 184 9.4 28
Show 17106-1617 KNP 5 40 2.1 34
Show 17117-1619 KPP1320 236 10.0 40
Show 17101-1458 RST3967 194 0.6 46
Show 17071-1549 KPP 751 97 6.6 48
Show 17136-1534 LSC 71 92 0.7 48
Show 17115-1630 HU 169 174 0.2 49
Show 17139-1536 GKM9370 Aa,Ab 289 0.1 53
Show 17139-1536 GKM9370 Aa,B 127 0.7 53
Show 17156-1558 FOX 19 AB 118 1.1 77
Show 17156-1558 FOX 19 AC 227 20.0 77
Show 17136-1648 TDT 267 341 4.9 80
Show 17159-1511 RST3970 279 0.1 87
Show 17153-1435 BU 282 151 4.2 100
Show 17037-1506 KPP 388 222 3.9 104
Show 17058-1422 HU 165 90 0.5 106
Show 17086-1356 KPP 392 27 3.9 111
Show 17093-1345 LSC 69 AB 206 0.6 120
Show 17105-1343 HDS2425 9 0.2 121
Show 17082-1347 NSN 140 252 1.3 121
Show 17065-1356 STF2119 184 2.4 122
Show 17120-1344 KPP2766 346 1.7 122
Show 17186-1622 ARA 87 AB 69 15.8 125
Show 17167-1709 STN 34 289 17.2 126
Show 17108-1748 GWP2697 57 19.7 126
Show 17196-1603 ARA 6 64 6.8 134
Show 17100-1801 HU 168 90 0.3 138
Show 17126-1759 LSC 70 10 0.4 140
Show 17156-1343 KPP 394 132 3.3 142
Show 17008-1613 UC 3273 200 23.9 142
Show 17030-1719 RST3063 162 1.1 143
Show 17080-1802 HO 650 224 7.5 143
Show 17161-1744 FEN 22 281 5.7 146
Show 17111-1809 TDT 256 102 0.4 147
Show 17198-1449 BRT2742 246 4.3 147
Show 17040-1742 RST3066 103 0.5 150
Show 17138-1807 ARA 247 236 6.0 152
Show 17091-1815 HJ 4923 147 16.3 153
Show 17159-1330 HDS2441 236 12.6 157
Show 17001-1639 HDS2406 171 0.2 158
Show 17014-1715 RST3061 181 0.4 159
Show 17056-1807 ARA 245 32 6.7 159

 
 
WDS 17104-1544 : COMPONENTS
 
 
  A B C D
B pa=221.5°
sep=0.25"
 
C pa=148.0°
sep=99.75"
pa=147.9°
sep=99.68"
 
D pa=281.0°
sep=101.21"
pa=281.1°
sep=101.08"
pa=304.3°
sep=184.29"
 
E pa=316.5°
sep=62.73"
pa=316.7°
sep=62.75"
pa=323.6°
sep=161.70"
pa=65.0°
sep=61.98"
 
 
17104-1544 A
 
 
Common name Sabik Coord arcsec 2000 171022.66-154330.5 Mag 3.05 Spectral class A1IV (white)
PmRA 45.00 PmDE 64.0 SAO 185105 HIP 84012
Tycho2 6232-01333-1 HD 155125 HR 6378 GC 23158
BD BD-15 4467 Bayer Eta Ophiuchi Bayer name eta Oph Flamsteed 35 Ophiuchi
Flamsteed name 35 Oph
Tycho2
Tycho2 6232-01333-1 Pflag X RAmdeg DEmdeg
PmRA PmDE E RAmdeg E DEmdeg
E pmRA E pmDE EpRAm EpDEm
Num Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 2.597 E BTmag 0.014 VTmag 2.477
E VTmag 0.009 Prox 8 TYC T HIP 84012
CCDM A RAdeg 257.59438917 DEdeg -15.72515972 EpRA 1990 1.73
EpDE 1990 1.31 E RAdeg 3.2 E DEdeg 3.4 Posflg D
Corr 0.2
SAO
SAO 185105 DelFlag RA1950 PmRA1950 -0.0098
DE1950 PmDE1950 -0.069 Vmag 9.4 SpType G5
Double code Source 25 CatNum 11862 DM CD-2211879
DMcomp BDsup HD M HD
GC RA1950rad 4.48326547 DE1950rad -0.39491205 PmRA2000 -0.0098
PmDE2000 -0.068
Hipparcos
Catalog H HIP 84012 Proxy H RAhms 17 10 22.66
DEdms -15 43 30.5 Vmag 2.43 VarFlag R Vmag G
RAdeg 257.594 DEdeg -15.7251 AstroRef A Plx 38.77
CCDM 41.16 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 251 Rho 0.466 HD BD BD-15 4467
CD CP Dm number -15 4467 VIred 0.06
SpType A2.5Va R SpType Coord arcsec 2000 171022.66-154330.5
Hipparcos 2
HIP 84012 Sn 17 So 3 Nc 2
RArad 4.4958708926 DErad -0.2744556024 Plx 36.91 PmRA 40.13
PmDE 99.17 E RArad 0.97 E DErad 0.37 E Plx 0.8
E pmRA 1.06 E pmDE 0.39 Hpmag E Hpmag 0.0008
SHp 0.004 VA 0 BV 0.059 E BV 0.01
VI 0.06
CCDM
Ccdm 17104-1544 RComp Comp A Note1
Note2 Discov num DRAs -1.33 DDEs 30.3
R dRAs 10 Year Theta Rho
Obs 4 Vmag 3.1 Sp A2 PmNote *
PmRA 36 PmDE 92 Dm number -15 4467 Cat1 BD
Name2 Cat2 HD 155125 M HD
ADS BDS A10374 M ADS BDS N IDS IDS 17046S1536A
HIC 84012
 
 
17104-1544 B
 
 
Coord arcsec 2000 171022.65-154330.7 Mag 3.27 Spectral class A1IV (white) Delta magnitude 0.22
Coordinate calculated yes
CCDM
Ccdm 17104-1544 RComp Comp B Note1 *
Note2 Discov num BU 1118 DRAs DDEs
R dRAs Year 1889 Theta Rho
Obs 99 Vmag 3.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10374 M ADS BDS N IDS IDS 17046S1536B
HIC 84012
 
 
17104-1544 C
 
 
Coord arcsec 2000 171026.32-154455.1 Mag 12.34 Spectral class A1IV (white) PmRA 2.00
PmDE -9.0 SAO 208494 Delta magnitude 9.29 Coordinate calculated yes
SAO
SAO 208494 DelFlag RA1950 PmRA1950 0.0008
DE1950 PmDE1950 0.001 Vmag 9.2 SpType A0
Double code Source 40 CatNum 9033 DM CD-3311780
DMcomp BDsup HD 155016 M HD 0
GC RA1950rad 4.48192999 DE1950rad -0.58959027 PmRA2000 0.0007
PmDE2000 0.002
CCDM
Ccdm 17104-1544 RComp Comp C Note1
Note2 Discov num BU 1118 DRAs DDEs
R dRAs Year 1911 Theta 143 Rho 94.6
Obs 2 Vmag 12.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10374 M ADS BDS N IDS IDS 17046S1536C
HIC
 
 
17104-1544 D
 
 
Coord arcsec 2000 171015.78-154311.2 Mag 11.2 PmRA -16.00 PmDE -4.0
SAO 208494 DM CD-3311780 Delta magnitude 8.15 Coordinate calculated yes
SAO
SAO 208494 DelFlag RA1950 PmRA1950 0.0008
DE1950 PmDE1950 0.001 Vmag 9.2 SpType A0
Double code Source 40 CatNum 9033 DM CD-3311780
DMcomp BDsup HD 155016 M HD 0
GC RA1950rad 4.48192999 DE1950rad -0.58959027 PmRA2000 0.0007
PmDE2000 0.002
CCDM
Ccdm 17104-1544 RComp Comp D Note1
Note2 Discov num BU 1118 DRAs DDEs
R dRAs Year 1898 Theta 288 Rho 100.0
Obs 3 Vmag 10.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10374 M ADS BDS N IDS IDS 17046S1536D
HIC
 
 
17104-1544 E
 
 
Coord arcsec 2000 171019.67-154245.0 Mag 11.1 Delta magnitude 8.05 Coordinate calculated yes