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Doubles in session


Current system
19169+6312
STF 2509
HD 181566


Nearby doubles
5' : 19174+6310
ES 2677

22' : 19162+6333
MOT 2

25' : 19132+6312
AG 228

33' : 19144+6341
UC 3859

35' : 19219+6306
MLR 50

43' : 19230+6323
STI 894

44' : 19150+6354
MOT 1AB

46' : 19143+6230
MLR 10

55' : 19213+6227
STI 887

56' : 19148+6220
STI 883

57' : 19202+6404
LDS2433

60' : 19210+6405
STI 888

61' : 19222+6403
STI 892

63' : 19205+6214
LDS2763

64' : 19110+6224
HU 943

65' : 19135+6212
TOI1464

66' : 19191+6416
MLR 64

67' : 19213+6412
STI 890

70' : 19069+6320
LDS2759

73' : 19184+6159
MLR 139

73' : 19169+6200
ES 1845

74' : 19198+6423
BUP 188

74' : 19260+6353
DAL 26

79' : 19242+6414
LDS2434

82' : 19285+6335
LDS2437

85' : 19212+6433
ES 194



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.

19169+6312 STF 2509 (HD 181566)

 
 
19h 16m 53.09s +63° 12' 27.0" P.A. 328.00 sep 1.8 mag 7.44,8.17 Sp F6V dist. 78.25 pc (255.25 l.y.)
 
 
Coord 2000 19169+6312 Discov num STF2509 Comp Coord arcsec 2000 19 16 53.09 +63 12 27.0
Date first 1831 Date last 2018 Obs 119
Pa first 351 Pa last 328.4 P.A. Now (θ) 328.4°
Sep first 0.5 Sep last 1.838 Sep. Now (ρ) 1.838"
Mag pri 7.44 Mag sec 8.17 delta mag (ΔM) 0.73 Spectral class F6V (yellow-white)
Pri motion ra +028 Sec motion ra +028
Pri motion dec -021 Sec motion dec -021
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 181566 Constellation Draco SAO 18257 HIP 94760
Tycho2 4221-00314-1 Gaia DR2 2252520509199021696 HD 181566 GC 26632
ADS 12296 BD BD+62 1702 Distance 78.25 Distance ly 255.25
 
 
ORBITAL ELEMENTS
 
 
Period (P)627y Periastron (T)1737y Semi-major axis (a)1.345a
Eccentricity (e)0.75 Inclination (i)101.2° Longitude of periastron (ω)325.4°
Node (Ω)139.6° Notes ReferenceZir2014a
Equinox2000 Last observation2011 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 329.2 1.771
2001 329.1 1.775
2002 329.1 1.780
2003 329.0 1.784
2004 329.0 1.788
2005 329.0 1.793
2006 328.9 1.797
2007 328.9 1.801
2008 328.8 1.806
2009 328.8 1.810
2010 328.7 1.814
2011 328.7 1.818
2012 328.7 1.822
2013 328.6 1.826
2014 328.6 1.831
2015 328.5 1.835
2016 328.5 1.839
2017 328.5 1.843
2018 328.4 1.846
2019 328.4 1.850
2020 328.4 1.854
2021 328.3 1.858
2022 328.3 1.862
2023 328.2 1.865
2024 328.2 1.869
2025 328.2 1.873
2026 328.1 1.877
2027 328.1 1.880
2028 328.0 1.884
2029 328.0 1.887
2030 328.0 1.891


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds19169%2B6312a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 19169+6312 STF 2509 (HD 181566) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Zir2014a orb - Zirm, H. 2014IAUDS.182....1Z
Zir2014a Inf. Circ. 182, 1, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19169+6312 STF2509 2005 110 329 1.8 7.44 8.17 F6V D 191653.09+631227.0
19169+6312 STF2509 2010 115 328 1.8 7.44 8.17 F6V D 191653.09+631227.0
19169+6312 STF2509 2011 117 328 1.8 7.44 8.17 F6V OD 191653.09+631227.0
19169+6312 STF2509 2016 116 328 1.9 7.44 8.17 F6V O 191653.09+631227.0
19169+6312 STF2509 2018 119 329 1.8 7.44 8.17 F6V O 191653.09+631227.0

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

 
 
WDS 19169+6312 STF 2509 (HD 181566) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19169+6312 STF 2509 (HD 181566) : MEASURES
 
 
No records found.

 
 
WDS 19169+6312 (HD 181566) : VIRTUAL EYEPIECE
 
 

19169+6312 STF2509A mag 7.44 Sp F6V 19169+6312 STF2509B sep 1.6 P.A. 344.50 mag 8.17 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 19169+6312 (HD 181566) : ALADIN DSS IMAGE @ 19h 16m 53.09s +63° 12' 27.0"
 
 
 
 
WDS 19169+6312 STF 2509 (HD 181566) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19169+6312 STF2509 distance=0' 19174+6310 ES 2677 distance=5' 19162+6333 MOT 2 distance=22' 19132+6312 AG 228 distance=25' 19144+6341 UC 3859 distance=33' 19219+6306 MLR 50 distance=35' 19150+6354 TDT1318Ba,Bb distance=43' 19230+6323 STI 894 distance=43' 19150+6354 MOT 1AB distance=44' 19143+6230 MLR 10 distance=46' 19213+6227 STI 887 distance=55' 19148+6220 STI 883 distance=56' 19202+6404 LDS2433 distance=57' 19210+6405 STI 888 distance=60' 19222+6403 STI 892 distance=61' 19205+6214 LDS2763 distance=63' 19110+6224 HU 943 distance=64' 19135+6212 TOI1464 distance=65' 19191+6416 MLR 64 distance=66' 19213+6412 STI 890 distance=67' 19069+6320 LDS2759 distance=70' 19184+6159 MLR 139 distance=73' 19169+6200 ES 1845 distance=73' 19198+6423 BUP 188 distance=74' 19260+6353 DAL 26 distance=74' 19242+6414 LDS2434 distance=79' 19285+6335 LDS2437 distance=82' 19212+6433 ES 194 distance=85' 19045+6248 MLR 8 distance=88' 19299+6324 TDT1500 distance=89' 19045+6245 TDT1211 distance=90' 19299+6300 ES 1847 distance=91' 19301+6342 STI 900 distance=93' 19070+6210 STI 875 distance=93' 19044+6358 UC 3786 distance=95' 19237+6437 ES 1916 distance=95' 19071+6205 UC 3802 distance=96' 19312+6319 STF2549DC distance=96' 19312+6319 GUI 24DE distance=96' 19308+6337 HU 951 distance=97' 19312+6319 BU 655AB distance=97' 19312+6319 STF2549AD distance=97' 19312+6319 STF2549AC distance=97' 19312+6319 GUI 24AE distance=97' 19141+6137 STI 881 distance=98' 19074+6156 UC 3806 distance=101' 19255+6150 ES 1846 distance=102' 19033+6400 JOD 16AB distance=103' 19033+6400 JOD 16AB,C distance=103' 19017+6308 LDS2426 distance=104' 19259+6147 TDT1451Aa,Ab distance=107' 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 19169+6312 STF2509 328 1.8
Show 19174+6310 ES 2677 88 14.4 5
Show 19162+6333 MOT 2 275 25.0 22
Show 19132+6312 AG 228 101 37.1 25
Show 19144+6341 UC 3859 180 47.0 33
Show 19219+6306 MLR 50 347 3.1 35
Show 19150+6354 TDT1318 Ba,Bb 21 1.5 43
Show 19230+6323 STI 894 327 11.0 43
Show 19150+6354 MOT 1 AB 154 79.1 44
Show 19143+6230 MLR 10 333 0.5 46
Show 19213+6227 STI 887 90 7.9 55
Show 19148+6220 STI 883 86 14.3 56
Show 19202+6404 LDS2433 110 2.4 57
Show 19210+6405 STI 888 174 3.9 60
Show 19222+6403 STI 892 189 3.5 61
Show 19205+6214 LDS2763 296 10.5 63
Show 19110+6224 HU 943 111 0.5 64
Show 19135+6212 TOI1464 105 1.5 65
Show 19191+6416 MLR 64 224 0.5 66
Show 19213+6412 STI 890 148 4.9 67
Show 19069+6320 LDS2759 353 146.4 70
Show 19184+6159 MLR 139 10 2.9 73
Show 19169+6200 ES 1845 147 5.3 73
Show 19198+6423 BUP 188 180 114.9 74
Show 19260+6353 DAL 26 302 18.4 74
Show 19242+6414 LDS2434 316 13.0 79
Show 19285+6335 LDS2437 37 32.0 82
Show 19212+6433 ES 194 217 4.6 85
Show 19045+6248 MLR 8 16 0.6 88
Show 19299+6324 TDT1500 289 2.1 89
Show 19045+6245 TDT1211 32 0.8 90
Show 19299+6300 ES 1847 226 3.4 91
Show 19301+6342 STI 900 27 6.5 93
Show 19070+6210 STI 875 13 7.2 93
Show 19044+6358 UC 3786 244 20.4 95
Show 19237+6437 ES 1916 228 6.3 95
Show 19071+6205 UC 3802 128 16.4 96
Show 19312+6319 STF2549 DC 76 29.2 96
Show 19312+6319 GUI 24 DE 226 107.8 96
Show 19308+6337 HU 951 197 0.2 97
Show 19312+6319 BU 655 AB 328 2.1 97
Show 19312+6319 STF2549 AD 269 55.8 97
Show 19312+6319 STF2549 AC 284 28.3 97
Show 19312+6319 GUI 24 AE 241 153.1 97
Show 19141+6137 STI 881 18 10.4 98
Show 19074+6156 UC 3806 6 34.2 101
Show 19255+6150 ES 1846 282 6.8 102
Show 19033+6400 JOD 16 AB 141 0.2 103
Show 19033+6400 JOD 16 AB,C 65 3.6 103
Show 19017+6308 LDS2426 62 4.4 104
Show 19259+6147 TDT1451 Aa,Ab 121 0.7 107

 
 
WDS 19169+6312 : COMPONENTS
 
 
  A
B pa=344.5°
sep=1.62"
 
 
19169+6312 A
 
 
Componente originario normalizzato AB Name HD 181566 Coord arcsec 2000 191653.09+631227.0 Mag 7.44
Spectral class F6V (yellow-white) PmRA 28.00 PmDE -21.0 SAO 18257
HIP 94760 Tycho2 4221-00314-1 HD 181566 GC 26632
BD BD+62 1702
Tycho2
Tycho2 4221-00314-1 Pflag P RAmdeg 289.22119849 DEmdeg 63.20749377
PmRA 27.5 PmDE -21.3 E RAmdeg 5 E DEmdeg 5
E pmRA 2.5 E pmDE 2.6 EpRAm 1991.64 EpDEm 1991.55
Num 5 Q RAmdeg 1.6 Q DEmdeg 2.4 Q pmRA 1.6
Q pmDE 2.5 BTmag 7.981 E BTmag 0.016 VTmag 7.443
E VTmag 0.010 Prox 17 TYC T HIP 94760
CCDM A RAdeg 289.22119528 DEdeg 63.20743833 EpRA 1990 1.70
EpDE 1990 1.60 E RAdeg 4.5 E DEdeg 4.5 Posflg D
Corr 0.0
SAO
SAO 18257 DelFlag RA1950 PmRA1950 0.003
DE1950 PmDE1950 -0.005 Vmag 6.9 SpType F5
Double code Source 70 CatNum 26632 DM BD+62 1702
DMcomp BDsup HD 181566 M HD 0
GC 26632 RA1950rad 5.04573479 DE1950rad 1.10159138 PmRA2000 0.0037
PmDE2000 -0.007
Hipparcos
Catalog H HIP 94760 Proxy H RAhms 19 16 53.08
DEdms +63 12 26.8 Vmag 6.93 VarFlag R Vmag G
RAdeg 289.221 DEdeg 63.2074 AstroRef A Plx 12.21
CCDM 19169+6312 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 329 Rho 1.733 HD 181566 BD BD+62 1702
CD CP Dm number +62 1702 VIred 0.58
SpType F5 R SpType Coord arcsec 2000 191653.08+631226.8
Hipparcos 2
HIP 94760 Sn 15 So 3 Nc 2
RArad 5.0478619971 DErad 1.1031779163 Plx 12.78 PmRA 27.8
PmDE -15.57 E RArad 0.58 E DErad 0.71 E Plx 0.67
E pmRA 0.75 E pmDE 0.88 Hpmag 7.0666 E Hpmag 0.0008
SHp 0.009 VA 0 BV 0.505 E BV 0.016
VI 0.58
CCDM
Ccdm 19169+6312 RComp Comp A Note1
Note2 Discov num DRAs -0.95 DDEs 26.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.2 Sp F5 PmNote *
PmRA 17 PmDE -21 Dm number +62 1702 Cat1 BD
Name2 +63 1017 Cat2 AGK2/3 HD 181566 M HD
ADS BDS A12296 M ADS BDS N IDS IDS 19159N6302A
HIC 94760
 
 
19169+6312 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 191653.03+631228.6 Mag 8.17 PmRA 28.00
PmDE -21.0 Tycho2 4221-00314-2 Calc delta mag 0.73 Calc coord yes
Tycho2
Tycho2 4221-00314-2 Pflag P RAmdeg 289.22119849 DEmdeg 63.20749377
PmRA 27.5 PmDE -21.3 E RAmdeg 5 E DEmdeg 5
E pmRA 2.5 E pmDE 2.6 EpRAm 1991.64 EpDEm 1991.55
Num 5 Q RAmdeg 1.6 Q DEmdeg 2.4 Q pmRA 1.6
Q pmDE 2.5 BTmag 8.722 E BTmag 0.017 VTmag 8.173
E VTmag 0.012 Prox 17 TYC HIP 94760
CCDM B RAdeg 289.22065278 DEdeg 63.20785306 EpRA 1990 1.72
EpDE 1990 1.64 E RAdeg 6.3 E DEdeg 6.1 Posflg D
Corr 0.0
CCDM
Ccdm 19169+6312 RComp Comp B Note1
Note2 Discov num STF2509 DRAs DDEs
R dRAs Year 1959 Theta 330 Rho 1.7
Obs 99 Vmag 8.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A12296 M ADS BDS N IDS IDS 19159N6302B
HIC 94760