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Doubles in session


Current system
11308+4117
STT 234
HD 100018


Nearby doubles
8' : 11303+4115
ES 1399

26' : 11329+4107
ES 1400

39' : 11281+4055
TDS7870

40' : 11282+4051
BVD 218

50' : 11346+4052
ES 1401

51' : 11294+4206
COU1905

70' : 11248+4128
HJ 2570AB

76' : 11299+4232
CVR1368

80' : 11376+4056
LDS4124

81' : 11371+4040
A 1996

86' : 11298+3953
SLW 610

86' : 11378+4150
LDS5735AB

93' : 11390+4109
STT 237AB

101' : 11391+4042
SKF2631

102' : 11281+3940
UC 2144

103' : 11266+3946
GRV 835

104' : 11310+3934
NSN 615

108' : 11293+3932
SLW 607

115' : 11227+4011
UC 2127

115' : 11371+3948
CVR 119

119' : 11291+3920
STF1543AB

124' : 11358+4308
SKF 832AB

136' : 11238+4307
LDS4093

144' : 11431+4040
UC 2196

148' : 11309+4345
YSC 42AB

152' : 11355-3856
CRC 63



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.

11308+4117 STT 234 (HD 100018)

 
 
11h 30m 49.91s +41° 17' 12.7" P.A. 189.00 sep 0.4 mag 7.45,8.13 Sp F6V dist. 74.79 pc (243.96 l.y.)
 
 
Coord 2000 11308+4117 Discov num STT 234 Comp Coord arcsec 2000 11 30 49.91 +41 17 12.7
Date first 1843 Date last 2021 Obs 272
Pa first 180 Pa last 189.4 P.A. Now (θ) 194.9°
Sep first 0.3 Sep last 0.4 Sep. Now (ρ) 0.357"
Mag pri 7.45 Mag sec 8.13 delta mag (ΔM) 0.68 Spectral class F6V (yellow-white)
Pri motion ra +092 Sec motion ra +092
Pri motion dec -098 Sec motion dec -098
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 100018 Constellation Ursa Major SAO 43789 HIP 56165
Tycho2 3015-02226-1 HD 100018 GC 15787 ADS 8189
BD BD+42 2214 Distance 74.79 Distance ly 243.96
 
 
ORBITAL ELEMENTS
 
 
Period (P)86.86y± 3 Periastron (T)1967.89y± 0.5 Semi-major axis (a)0.381a± 0.015
Eccentricity (e)0.356± 0.015 Inclination (i)56.6°± 1.5 Longitude of periastron (ω)29.8°± 4
Node (Ω)336.4°± 2 Notesn ReferenceDoc2009g
Equinox2000 Last observation2000 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 159.2 0.490
2001 160.5 0.493
2002 161.8 0.495
2003 163.1 0.496
2004 164.3 0.496
2005 165.6 0.495
2006 166.8 0.493
2007 168.1 0.490
2008 169.4 0.487
2009 170.7 0.483
2010 172.1 0.478
2011 173.5 0.472
2012 174.9 0.466
2013 176.3 0.459
2014 177.8 0.451
2015 179.4 0.442
2016 181.0 0.433
2017 182.7 0.424
2018 184.4 0.414
2019 186.3 0.403
2020 188.2 0.392
2021 190.3 0.381
2022 192.5 0.369
2023 194.9 0.357
2024 197.4 0.344
2025 200.1 0.332
2026 203.0 0.319
2027 206.2 0.307
2028 209.6 0.294
2029 213.3 0.282
2030 217.4 0.270


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


 
  


wds11308%2B4117b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 11308+4117 STT 234 (HD 100018) : NOTES
 
 
discov_num notes refcode
STT 234 One component is SB P = 7.40 d, and the lines of all three stars
appear in the spectrum. The close pair is very probably the visual
primary; the ascending node is identified on that assumption.
 
 
REFERENCES
 
 
refcode metd author reference
Doc2009g orb - Docobo, J.A. & Ling, J.F. 2009AJ....138.1159D
Doc2009g AJ 138, 1159, 2009
 
 
DISCOVERER
 
 
idgroup discov author
1 STT Struve, O.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
11308+4117 STT 234 2006 252 166 0.5 7.45 8.13 F6V NOD 113049.91+411712.7
11308+4117 STT 234 2007 254 168 0.5 7.45 8.13 F6V NOD 113049.91+411712.7
11308+4117 STT 234 2010 255 172 0.5 7.45 8.13 F6V NOD 113049.91+411712.7
11308+4117 STT 234 2012 257 175 0.5 7.45 8.13 F6V NO 113049.91+411712.7
11308+4117 STT 234 2017 258 181 0.4 7.45 8.13 F6V NO 113049.91+411712.7
11308+4117 STT 234 2019 265 182 0.4 7.45 8.13 F6V NO 113049.91+411712.7
11308+4117 STT 234 2021 272 189 0.4 7.45 8.13 F6V NO 113049.91+411712.7

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

 
 
WDS 11308+4117 STT 234 (HD 100018) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 11308+4117 STT 234 (HD 100018) : MEASURES
 
 
No records found.

 
 
WDS 11308+4117 (HD 100018) : VIRTUAL EYEPIECE
 
 

11308+4117 STT 234A mag 7.45 Sp F6V 11308+4117 STT 234B sep 0.4 P.A. 187.10 mag 8.13 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 11308+4117 (HD 100018) : ALADIN DSS IMAGE @ 11h 30m 49.91s +41° 17' 12.7"
 
 
 
 
WDS 11308+4117 STT 234 (HD 100018) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

11308+4117 STT 234 distance=0' 11303+4115 ES 1399 distance=8' 11329+4107 ES 1400 distance=26' 11281+4055 TDS7870 distance=39' 11282+4051 BVD 218 distance=40' 11346+4052 ES 1401 distance=50' 11294+4206 COU1905 distance=51' 11248+4128 HJ 2570AB distance=70' 11248+4128 HJ 2570AC distance=70' 11299+4232 CVR1368 distance=76' 11376+4056 LDS4124 distance=80' 11371+4040 A 1996 distance=81' 11298+3953 SLW 610 distance=86' 11378+4150 LDS5735AB distance=86' 11378+4150 DAL 24AC distance=86' 11390+4109 STT 237AB distance=93' 11390+4109 HJL1065AC distance=93' 11391+4042 SKF2631 distance=101' 11281+3940 UC 2144 distance=102' 11266+3946 GRV 835 distance=103' 11310+3934 NSN 615 distance=104' 11293+3932 SLW 607 distance=108' 11227+4011 UC 2127 distance=115' 11371+3948 CVR 119 distance=115' 11291+3920 STF1543AB distance=119' 11291+3920 STF1543AC distance=119' 11291+3920 STF1543AD distance=119' 11291+3920 KZA 17AG distance=119' 11291+3920 STF1543DE distance=122' 11291+3920 STF1543DF distance=122' 11291+3920 STF1543EF distance=124' 11358+4308 SKF 832AB distance=124' 11238+4307 LDS4093 distance=136' 11431+4040 UC 2196 distance=144' 11309+4345 YSC 42AB distance=148' 11309+4345 TOK 547AC distance=148' 11355-3856 CRC 63 distance=152' 11234+3910 CVR 609 distance=153' 11174+4146 A 2158 distance=154' 11175+4201 CVR 601 distance=156' 11388+3910 HJ 506 distance=157' 11223+3912 TDS7827 distance=159' 11443+4032 OSO 43 distance=160' 11303+3835 ES 1643 distance=163' 11422+3940 HJ 508AB distance=163' 11383+4338 TOK 549 distance=164' 11424+3934 GRV 841 distance=168' 11412+3920 OSO 42AB distance=168' 11412+3920 LDS4135AC distance=168' 11166+4215 HJ 2564 distance=169' 11180+3951 LDS4081 distance=170' 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 11308+4117 STT 234 189 0.4
Show 11303+4115 ES 1399 123 3.2 8
Show 11329+4107 ES 1400 183 5.8 26
Show 11281+4055 TDS7870 151 0.7 39
Show 11282+4051 BVD 218 195 7.5 40
Show 11346+4052 ES 1401 327 6.5 50
Show 11294+4206 COU1905 188 0.5 51
Show 11248+4128 HJ 2570 AB 279 17.5 70
Show 11248+4128 HJ 2570 AC 211 46.1 70
Show 11299+4232 CVR1368 39 3.9 76
Show 11376+4056 LDS4124 154 150.9 80
Show 11371+4040 A 1996 189 2.0 81
Show 11298+3953 SLW 610 187 128.6 86
Show 11378+4150 LDS5735 AB 340 28.6 86
Show 11378+4150 DAL 24 AC 175 5.9 86
Show 11390+4109 STT 237 AB 244 1.9 93
Show 11390+4109 HJL1065 AC 4 132.3 93
Show 11391+4042 SKF2631 43 11.0 101
Show 11281+3940 UC 2144 92 26.0 102
Show 11266+3946 GRV 835 293 24.5 103
Show 11310+3934 NSN 615 211 2.7 104
Show 11293+3932 SLW 607 276 14.7 108
Show 11227+4011 UC 2127 34 43.8 115
Show 11371+3948 CVR 119 147 23.2 115
Show 11291+3920 STF1543 AB 354 5.5 119
Show 11291+3920 STF1543 AC 11 220.2 119
Show 11291+3920 STF1543 AD 252 344.0 119
Show 11291+3920 KZA 17 AG 204 330.2 119
Show 11291+3920 STF1543 DE 184 99.3 122
Show 11291+3920 STF1543 DF 168 129.6 122
Show 11291+3920 STF1543 EF 129 43.7 124
Show 11358+4308 SKF 832 AB 252 29.5 124
Show 11238+4307 LDS4093 343 60.7 136
Show 11431+4040 UC 2196 114 20.3 144
Show 11309+4345 YSC 42 AB 127 0.1 148
Show 11309+4345 TOK 547 AC 319 999.9 148
Show 11355-3856 CRC 63 66 0.3 152
Show 11234+3910 CVR 609 130 24.2 153
Show 11174+4146 A 2158 0.4 154
Show 11175+4201 CVR 601 318 28.6 156
Show 11388+3910 HJ 506 142 30.9 157
Show 11223+3912 TDS7827 326 0.6 159
Show 11443+4032 OSO 43 275 18.7 160
Show 11303+3835 ES 1643 56 8.2 163
Show 11422+3940 HJ 508 AB 129 11.6 163
Show 11383+4338 TOK 549 10 528.0 164
Show 11424+3934 GRV 841 203 64.5 168
Show 11412+3920 OSO 42 AB 153 4.8 168
Show 11412+3920 LDS4135 AC 283 360.0 168
Show 11166+4215 HJ 2564 135 32.0 169
Show 11180+3951 LDS4081 76 328.9 170

 
 
WDS 11308+4117 : COMPONENTS
 
 
  A
B pa=187.1°
sep=0.40"
 
 
11308+4117 A
 
 
Componente originario normalizzato AB Name HD 100018 Coord arcsec 2000 113049.91+411712.7 Mag 7.45
Spectral class F6V (yellow-white) PmRA 92.00 PmDE -98.0 SAO 43789
HIP 56165 Tycho2 3015-02226-1 HD 100018 GC 15787
BD BD+42 2214
Tycho2
Tycho2 3015-02226-1 Pflag RAmdeg 172.70798642 DEmdeg 41.28683193
PmRA 92.2 PmDE -98.3 E RAmdeg 4 E DEmdeg 4
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.41 EpDEm 1991.42
Num 10 Q RAmdeg 1.5 Q DEmdeg 1.0 Q pmRA 1.6
Q pmDE 1.1 BTmag 7.515 E BTmag 0.016 VTmag 7.034
E VTmag 0.010 Prox 999 TYC T HIP 56165
CCDM AB RAdeg 172.70770139 DEdeg 41.28706028 EpRA 1990 1.63
EpDE 1990 1.64 E RAdeg 4.4 E DEdeg 4.4 Posflg P
Corr 0.1
SAO
SAO 43789 DelFlag RA1950 PmRA1950 0.0082
DE1950 PmDE1950 -0.09 Vmag 7 SpType F5
Double code Source 70 CatNum 15787 DM BD+42 2214
DMcomp BDsup HD 100018 M HD 0
GC 15787 RA1950rad 3.00254168 DE1950rad 0.72543147 PmRA2000 0.0083
PmDE2000 -0.085
Hipparcos
Catalog H HIP 56165 Proxy H RAhms 11 30 49.84
DEdms +41 17 13.6 Vmag 6.95 VarFlag 1 R Vmag G
RAdeg 172.708 DEdeg 41.2871 AstroRef A Plx 12.77
CCDM 11308+4117 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 147 Rho 0.423 HD 100018 BD BD+42 2214
CD CP Dm number +42 2214 VIred 0.53
SpType F5 R SpType Coord arcsec 2000 113049.84+411713.6
Hipparcos 2
HIP 56165 Sn 15 So 3 Nc 2
RArad 3.0143171499 DErad 0.7205959903 Plx 13.37 PmRA 95.18
PmDE -92.33 E RArad 0.65 E DErad 0.83 E Plx 0.97
E pmRA 0.75 E pmDE 1.03 Hpmag 7.0493 E Hpmag 0.0017
SHp 0.01 VA 2 BV 0.456 E BV 0.012
VI 0.53
CCDM
Ccdm 11308+4117 RComp Comp A Note1
Note2 Discov num DRAs 1.81 DDEs 12.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.6 Sp F5 PmNote *
PmRA 74 PmDE -104 Dm number +42 2214 Cat1 BD
Name2 +41 1055 Cat2 AGK2/3 HD 100018 M HD
ADS BDS A 8189 M ADS BDS N IDS IDS 11254N4150A
HIC 56165
 
 
11308+4117 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 113049.91+411712.3 Mag 8.13 PmRA 92.00
PmDE -98.0 Calc delta mag 0.68 Calc coord yes
CCDM
Ccdm 11308+4117 RComp Comp B Note1 *
Note2 Discov num STT 234 DRAs DDEs
R dRAs Year 1844 Theta Rho
Obs 99 Vmag 8.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 8189 M ADS BDS N IDS IDS 11254N4150B
HIC 56165