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Doubles in session


Current system
11366+5608
STF 1553
HD 100831


Nearby doubles
14' : 11366+5621
RAO 265

17' : 11350+5557
STI2273

18' : 11386+5601
LDS1266

20' : 11342+5602
FYM 621

36' : 11323+5606
STF1546

42' : 11317+5602
CBL 50

42' : 11336+5535
SKF2010

47' : 11417+5627
MLR 552

52' : 11370+5700
HDS1646AB

53' : 11429+5610
CRB 189

54' : 11329+5525
A 1593

54' : 11307+5547
TDS7899

59' : 11431+5546
LDS4137

66' : 11371+5714
KPP3850

68' : 11297+5644
DRS 48

70' : 11304+5654
UC 2156

73' : 11386+5457
AZC 164

76' : 11285+5644
LDS1261

77' : 11282+5540
A 1355

80' : 11409+5719
LDS2608

86' : 11456+5651
LDS2612

93' : 11437+5458
CBL 350

97' : 11272+5513
A 1354

101' : 11258+5527
MLR 601

103' : 11466+5710
STI2276

104' : 11333+5748
KR 39AB



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.

11366+5608 STF 1553 (HD 100831)

 
 
11h 36m 35.69s +56° 08' 07.3" P.A. 165.00 sep 6.2 mag 7.73,8.17 Sp G5+K7V dist. 46.99 pc (153.28 l.y.)
 
 
Coord 2000 11366+5608 Discov num STF1553 Comp Coord arcsec 2000 11 36 35.69 +56 08 07.3
Date first 1828 Date last 2019 Obs 151
Pa first 177 Pa last 165.4 P.A. Now (θ) 165.4°
Sep first 8.0 Sep last 6.194 Sep. Now (ρ) 6.194"
Mag pri 7.73 Mag sec 8.17 delta mag (ΔM) 0.44 Spectral class G5+K7V (yellow/yellow-orange)
Pri motion ra -178 Sec motion ra -175
Pri motion dec -092 Sec motion dec -091
Notes N O V (See Notes, Orbital solution, Proper motion indicates physical)
rPM=0.016 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 100831 Constellation Ursa Major SAO 28071 HIP 56622
Tycho2 3835-00767-1 HD 100831 GC 15910 ADS 8236
BD BD+56 1529 Distance 46.99 Distance ly 153.28
 
 
ORBITAL ELEMENTS
 
 
Period (P)1996y± 315 Periastron (T)1247y± 211 Semi-major axis (a)4.611a± 0.399
Eccentricity (e)0.39± 0.16 Inclination (i)110.4°± 2.4 Longitude of periastron (ω)200°± 36
Node (Ω)165.8°± 7.5 Notesn ReferenceKiy2018a
Equinox Last observation2018 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 166.4 6.129
2001 166.4 6.132
2002 166.3 6.134
2003 166.3 6.137
2004 166.3 6.139
2005 166.2 6.142
2006 166.2 6.144
2007 166.2 6.146
2008 166.1 6.149
2009 166.1 6.151
2010 166.1 6.153
2011 166.0 6.156
2012 166.0 6.158
2013 166.0 6.160
2014 165.9 6.162
2015 165.9 6.165
2016 165.9 6.167
2017 165.8 6.169
2018 165.8 6.171
2019 165.8 6.173
2020 165.7 6.175
2021 165.7 6.177
2022 165.7 6.179
2023 165.6 6.181
2024 165.6 6.183
2025 165.6 6.185
2026 165.5 6.187
2027 165.5 6.189
2028 165.5 6.191
2029 165.4 6.193
2030 165.4 6.195


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


 
  


wds11366%2B5608a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier11366+5608 STF1553 B
coord_arcsec_2000113635.89+560801.5
Period (P)4.627y Periastron (T)1993.048y Semi-major axis (a)23.1m± 2.6
Eccentricity (e)0.648 Inclination (i)86.5°± 5.1 Longitude of periastron (ω)55.4°± 13.9
Node (Ω)203.1°± 3.1 Notes ReferenceKiy2018a
Equinox Last observation2018 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000 28.2 0.022
2001 41.9 0.006
2002 200.2 0.011
2003 23.5 0.023
2004 26.2 0.027
2005 30.2 0.017
2006 151.2 0.002
2007 262.4 0.001
2008 24.6 0.027
2009 27.3 0.024
2010 34.3 0.011
2011 195.0 0.008
2012 22.3 0.017
2013 25.5 0.028
2014 28.7 0.020
2015 51.3 0.004
2016 202.2 0.011
2017 23.9 0.025
2018 26.5 0.026
2019 31.1 0.015
2020 179.7 0.004
2021 18.6 0.007
2022 24.9 0.028
2023 27.7 0.023
2024 36.8 0.008
2025 197.9 0.010
2026 23.0 0.021
2027 25.8 0.028
2028 29.4 0.018
2029 78.0 0.002
2030 204.8 0.008


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


 
  


 
 
 
WDS 11366+5608 STF 1553 (HD 100831) : NOTES
 
 
discov_num notes refcode
STF1553 LDS1265.
B is SB2, P=4.627y Tok2014d
 
 
REFERENCES
 
 
refcode metd author reference
Kiy2018a C - Kiyaeva, O.V. & Izmailov, I.S. 2018AstL...44..787K
Kiy2018a +orb Ast. Lett. 44, 787, 2018
Kiy2018a Note: Published J2000 PA precessed to epoch of observation for consistency.
Tok2014d E2 - Tokovinin, A. 2014AJ....147...86T
Tok2014d AJ 147, 86, 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
11366+5608 STF1553 2006 100 165 5.9 7.73 8.17 G5 N DV 113635.69+560807.3
11366+5608 STF1553 2007 106 166 6.2 7.73 8.17 G5 NVD 113635.69+560807.3
11366+5608 STF1553 2010 117 166 5.5 7.73 8.17 G5+K7V NV 113635.69+560807.3
11366+5608 STF1553 2014 123 166 6.2 7.73 8.17 G5+K7V NV 113635.69+560807.3
11366+5608 STF1553 2017 126 165 6.2 7.73 8.17 G5+K7V NV 113635.69+560807.3
11366+5608 STF1553 2018 142 165 6.2 7.73 8.17 G5+K7V NV 113635.69+560807.3
11366+5608 STF1553 2019 149 165 6.2 7.73 8.17 G5+K7V NO V 113635.69+560807.3

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

 
 
WDS 11366+5608 STF 1553 (HD 100831) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 11366+5608 STF 1553 (HD 100831) : MEASURES
 
 
No records found.

 
 
WDS 11366+5608 (HD 100831) : VIRTUAL EYEPIECE
 
 

11366+5608 STF1553A mag 7.73 Sp G5 11366+5608 STF1553B sep 6.1 P.A. 171.70 mag 8.17 Sp K7V 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 11366+5608 (HD 100831) : ALADIN DSS IMAGE @ 11h 36m 35.69s +56° 08' 07.3"
 
 
 
 
WDS 11366+5608 STF 1553 (HD 100831) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

11366+5608 STF1553 distance=0' 11366+5621 RAO 265 distance=14' 11350+5557 STI2273 distance=17' 11386+5601 LDS1266 distance=18' 11342+5602 FYM 621 distance=20' 11323+5606 STF1546 distance=36' 11317+5602 CBL 50 distance=42' 11336+5535 SKF2010 distance=42' 11417+5627 MLR 552 distance=47' 11370+5700 HDS1646AB distance=52' 11370+5700 GII 176Aa,Ab distance=52' 11429+5610 CRB 189 distance=53' 11329+5525 A 1593 distance=54' 11307+5547 TDS7899 distance=54' 11431+5546 LDS4137 distance=59' 11371+5714 KPP3850 distance=66' 11297+5644 DRS 48 distance=68' 11304+5654 UC 2156 distance=70' 11386+5457 AZC 164 distance=73' 11285+5644 LDS1261 distance=76' 11282+5540 A 1355 distance=77' 11409+5719 LDS2608 distance=80' 11456+5651 LDS2612 distance=86' 11437+5458 CBL 350 distance=93' 11272+5513 A 1354 distance=97' 11258+5527 MLR 601 distance=101' 11466+5710 STI2276 distance=103' 11333+5748 MLR 551Aa,Ab distance=104' 11333+5748 KR 39AB distance=104' 11333+5748 KR 39AC distance=104' 11243+5553 STI2269 distance=105' 11272+5459 MLR 703 distance=107' 11367+5421 LEP 43 distance=108' 11246+5651 STI2270 distance=109' 11231+5602 STI2268 distance=113' 11300+5429 SKF 255 distance=114' 11251+5713 TDS7852 distance=115' 11474+5458 BVD 95 distance=116' 11360+5804 STI2274 distance=116' 11227+5544 MLB 168 distance=120' 11223+5600 UC 2125 distance=120' 11261+5738 TDS7858 distance=124' 11466+5433 CVR1381 distance=128' 11386+5356 WAA 38 distance=133' 11208+5632 TDS7804 distance=134' 11522+5530 CVR1388 distance=138' 11527+5647 ES 1826 distance=139' 11506+5727 TDS8065 distance=140' 11462+5413 CVR 622 distance=142' 11293+5401 MLR 680 distance=143' 11196+5600 LDS2598 distance=143' 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 11366+5608 STF1553 165 6.2
Show 11366+5621 RAO 265 221 3.5 14
Show 11350+5557 STI2273 297 5.1 17
Show 11386+5601 LDS1266 231 53.3 18
Show 11342+5602 FYM 621 66 7.8 20
Show 11323+5606 STF1546 349 11.4 36
Show 11317+5602 CBL 50 220 20.6 42
Show 11336+5535 SKF2010 15 124.5 42
Show 11417+5627 MLR 552 49 1.7 47
Show 11370+5700 HDS1646 AB 65 0.6 52
Show 11370+5700 GII 176 Aa,Ab 125 0.1 52
Show 11429+5610 CRB 189 116 13.7 53
Show 11329+5525 A 1593 254 4.1 54
Show 11307+5547 TDS7899 337 0.5 54
Show 11431+5546 LDS4137 244 6.0 59
Show 11371+5714 KPP3850 282 1.4 66
Show 11297+5644 DRS 48 232 9.2 68
Show 11304+5654 UC 2156 274 51.9 70
Show 11386+5457 AZC 164 328 46.2 73
Show 11285+5644 LDS1261 322 3.1 76
Show 11282+5540 A 1355 359 1.3 77
Show 11409+5719 LDS2608 36 4.7 80
Show 11456+5651 LDS2612 69 2.6 86
Show 11437+5458 CBL 350 176 29.5 93
Show 11272+5513 A 1354 126 1.3 97
Show 11258+5527 MLR 601 56 1.1 101
Show 11466+5710 STI2276 10 11.5 103
Show 11333+5748 MLR 551 Aa,Ab 125 0.9 104
Show 11333+5748 KR 39 AB 152 10.4 104
Show 11333+5748 KR 39 AC 268 19.0 104
Show 11243+5553 STI2269 97 7.8 105
Show 11272+5459 MLR 703 66 0.2 107
Show 11367+5421 LEP 43 354 3.7 108
Show 11246+5651 STI2270 204 13.0 109
Show 11231+5602 STI2268 12 4.1 113
Show 11300+5429 SKF 255 109 1.9 114
Show 11251+5713 TDS7852 74 0.5 115
Show 11474+5458 BVD 95 217 29.1 116
Show 11360+5804 STI2274 23 7.5 116
Show 11227+5544 MLB 168 144 5.9 120
Show 11223+5600 UC 2125 340 57.9 120
Show 11261+5738 TDS7858 214 3.3 124
Show 11466+5433 CVR1381 51 3.6 128
Show 11386+5356 WAA 38 39 1.1 133
Show 11208+5632 TDS7804 268 0.6 134
Show 11522+5530 CVR1388 26 4.3 138
Show 11527+5647 ES 1826 217 5.5 139
Show 11506+5727 TDS8065 91 0.8 140
Show 11462+5413 CVR 622 19 24.1 142
Show 11293+5401 MLR 680 186 4.3 143
Show 11196+5600 LDS2598 76 15.0 143

 
 
WDS 11366+5608 : COMPONENTS
 
 
  A
B pa=171.7°
sep=6.06"
 
 
11366+5608 A
 
 
Componente originario normalizzato AB Name HD 100831 Coord arcsec 2000 113635.69+560807.3 Mag 7.73
Spectral class G5 (yellow) PmRA -178.00 PmDE -92.0 SAO 28071
HIP 56622 Tycho2 3835-00767-1 HD 100831 GC 15910
ADS 8236 BD BD+56 1529
Tycho2
Tycho2 3835-00767-1 Pflag RAmdeg 174.14869951 DEmdeg 56.13535708
PmRA -182.2 PmDE -87.8 E RAmdeg 4 E DEmdeg 5
E pmRA 1.0 E pmDE 1.2 EpRAm 1991.47 EpDEm 1991.30
Num 9 Q RAmdeg 1.5 Q DEmdeg 1.2 Q pmRA 1.4
Q pmDE 1.2 BTmag 8.478 E BTmag 0.015 VTmag 7.732
E VTmag 0.010 Prox 61 TYC T HIP 56622
CCDM A RAdeg 174.14945417 DEdeg 56.13556361 EpRA 1990 1.69
EpDE 1990 1.53 E RAdeg 4.3 E DEdeg 5.1 Posflg
Corr -0.5
SAO
SAO 28071 DelFlag RA1950 PmRA1950 -0.0225
DE1950 PmDE1950 -0.097 Vmag 7.9 SpType G5
Double code Source 70 CatNum 15910 DM BD+56 1529
DMcomp BDsup HD 100831 M HD 0
GC 15910 RA1950rad 3.02756409 DE1950rad 0.98459676 PmRA2000 -0.0221
PmDE2000 -0.092
Hipparcos
Catalog H HIP 56622 Proxy H RAhms 11 36 35.88
DEdms +56 08 08.1 Vmag 7.16 VarFlag R Vmag H
RAdeg 174.15 DEdeg 56.1356 AstroRef A Plx 22.92
CCDM 11366+5608 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 166 Rho 6.108 HD 100831 BD BD+56 1529
CD CP Dm number +56 1529 VIred 0.71
SpType G5... R SpType Coord arcsec 2000 113635.88+560808.1
Hipparcos 2
HIP 56622 Sn 15 So 3 Nc 2
RArad 3.0394821902 DErad 0.9797506004 Plx 21.28 PmRA -179.11
PmDE -90.39 E RArad 0.64 E DErad 0.57 E Plx 0.96
E pmRA 0.87 E pmDE 0.71 Hpmag 7.3046 E Hpmag 0.0013
SHp 0.011 VA 0 BV 0.71 E BV 0.008
VI 0.76
CCDM
Ccdm 11366+5608 RComp Comp A Note1
Note2 Discov num DRAs -0.39 DDEs 6.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.9 Sp G5 PmNote *
PmRA -185 PmDE -97 Dm number +56 1529 Cat1 BD
Name2 28071 Cat2 SAO HD 100831 M HD
ADS BDS A 8236 M ADS BDS N IDS IDS 11311N5642A
HIC 56622
 
 
11366+5608 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 113635.79+560801.3 Mag 8.17 Spectral class K7V (yellow-orange)
PmRA -175.00 PmDE -91.0 Tycho2 3835-01059-1 Calc delta mag 0.44
Calc coord yes
Tycho2
Tycho2 3835-01059-1 Pflag RAmdeg 174.14948556 DEmdeg 56.13371466
PmRA -175.4 PmDE -91.1 E RAmdeg 5 E DEmdeg 6
E pmRA 1.2 E pmDE 1.3 EpRAm 1991.50 EpDEm 1991.29
Num 8 Q RAmdeg 1.0 Q DEmdeg 1.2 Q pmRA 0.9
Q pmDE 1.2 BTmag 9.050 E BTmag 0.017 VTmag 8.172
E VTmag 0.011 Prox 61 TYC T HIP 56622
CCDM B RAdeg 174.15020833 DEdeg 56.13392861 EpRA 1990 1.73
EpDE 1990 1.55 E RAdeg 5.1 E DEdeg 6.3 Posflg
Corr -0.4
CCDM
Ccdm 11366+5608 RComp Comp B Note1
Note2 Discov num STF1553 DRAs DDEs
R dRAs Year 1953 Theta 168 Rho 6.0
Obs 99 Vmag 8.4 Sp PmNote
PmRA -176 PmDE -88 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8236 M ADS BDS N IDS IDS 11311N5642B
HIC 56622