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Current system
15108+4651
STF 1920
HD 134942


Nearby doubles
7' : 15108+4640
ARG 27

22' : 15129+4650
ES 624AB

37' : 15077+4632
COU1761

52' : 15060+4637
SKF 719

62' : 15167+4702
KPP1863

63' : 15155+4610
UC 2972

70' : 15105+4800
HDS2131AB

70' : 15126+4544
MCT 8

78' : 15173+4731
GRV1207

79' : 15169+4604
KPP3950

82' : 15178+4611
ES 1252

87' : 15038+4739
STF1909

92' : 15119+4520
SLW1069

96' : 15054+4809
BU 1086

100' : 15175+4804
COU1762

101' : 15144+4518
CBL 60

101' : 15025+4745
H 6 53AB

101' : 15206+4656
HDS2155AB

102' : 15027+4554
ES 1086

105' : 15087+4508
HJ 2768

106' : 15127+4835
ES 2648AB

106' : 15200+4603
A 1631AB

107' : 15145+4831
LDS4539

107' : 15006+4717
STT 291

108' : 15194+4550
HJ 2776AB

116' : 15194+4536
GIC 125



Selections
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Binary Systems
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

15108+4651 STF 1920 (HD 134942)

 
 
15h 10m 48.36s +46° 51' 00.6" P.A. 109.00 sep 18.7 mag 9.92,9.98 Sp K0+K0 dist. 73.1 pc (238.45 l.y.)
 
 
Coord 2000 15108+4651 Discov num STF1920 Comp Coord arcsec 2000 15 10 48.36 +46 51 00.6
Date first 1830 Date last 2021 Obs 33
Pa first 112 Pa last 109.4 P.A. Now (θ) 109.4°
Sep first 20.0 Sep last 18.683 Sep. Now (ρ) 18.683"
Mag pri 9.92 Mag sec 9.98 delta mag (ΔM) 0.06 Spectral class K0+K0 (yellow-orange/yellow-orange)
Pri motion ra -094 Sec motion ra -095
Pri motion dec +029 Sec motion dec +029
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.01 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 134942 Constellation Bootes SAO 45416 HIP 74278
Tycho2 3481-00763-1 Gaia DR2 1587869754592585984 HD 134942 GC 20429
BD BD+47 2207 Distance 73.1 Distance ly 238.45
 
 
WDS 15108+4651 STF 1920 (HD 134942) : NOTES
 
 
discov_num notes refcode
STF1920 HJL 212. HJL1986
SHY 664. Bayesian analysis by Shaya & Olling (2011) indicates very Shy2011
high (near 100%) probability pair is physical.
 
 
REFERENCES
 
 
refcode metd author reference
HJL1986 Pa - Halbwachs, J.L. 1986A&AS...66..131H
HJL1986 A&AS 66, 131, 1986
HJL1986 (Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added
HJL1986 only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113)
Shy2011 - Shaya, E.J. & Olling, R. 2011ApJS..192....2S
Shy2011 ApJS 192, 2, 2011
Shy2011 (Statistical analysis of probability that wide Hipparcos pairs are physical. Pairs
Shy2011 added to WDS only if probability 90% or greater.)
 
 
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
15108+4651 STF1920 2004 21 110 18.8 9.92 9.98 K0 K0 ZDV 151048.36+465100.6
15108+4651 STF1920 2015 23 124 18.9 9.92 9.98 K0+K0 NZ V 151048.36+465100.6
15108+4651 STF1920 2020 31 109 18.6 9.92 9.98 K0+K0 NV 151048.36+465100.6
15108+4651 STF1920 2021 32 109 18.7 9.92 9.98 K0+K0 NV 151048.36+465100.6

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

 
 
WDS 15108+4651 STF 1920 (HD 134942) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15108+4651 STF 1920 (HD 134942) : MEASURES
 
 
No records found.

 
 
WDS 15108+4651 (HD 134942) : VIRTUAL EYEPIECE
 
 

15108+4651 STF1920A mag 9.92 Sp K0 15108+4651 STF1920B sep 13.6 P.A. 117.20 mag 9.98 Sp K0 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 15108+4651 (HD 134942) : ALADIN DSS IMAGE @ 15h 10m 48.36s +46° 51' 00.6"
 
 
 
 
WDS 15108+4651 STF 1920 (HD 134942) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15108+4651 STF1920 distance=0' 15108+4640 ARG 27 distance=7' 15129+4650 ES 624BC distance=22' 15129+4650 ES 624AB distance=22' 15129+4650 HJ 2770AC distance=22' 15077+4632 COU1761 distance=37' 15060+4637 SKF 719 distance=52' 15167+4702 KPP1863 distance=62' 15155+4610 UC 2972 distance=63' 15105+4800 HDS2131AB distance=70' 15105+4800 HDS2131AC distance=70' 15126+4544 MCT 8 distance=70' 15173+4731 GRV1207 distance=78' 15169+4604 KPP3950 distance=79' 15178+4611 ES 1252 distance=82' 15038+4739 STF1909 distance=87' 15119+4520 SLW1069 distance=92' 15054+4809 BU 1086 distance=96' 15175+4804 COU1762 distance=100' 15144+4518 CBL 60 distance=101' 15025+4745 H 6 53AB distance=101' 15025+4745 L 9001AC distance=101' 15206+4656 HDS2155AB distance=101' 15206+4656 GII 220Aa,Ab distance=101' 15027+4554 ES 1086 distance=102' 15087+4508 HJ 2768 distance=105' 15127+4835 ES 2648AB distance=106' 15127+4835 POP1220AC distance=106' 15127+4835 CTT 14AD distance=106' 15200+4603 A 1631AB distance=106' 15200+4603 ES 75AB,C distance=106' 15145+4831 LDS4539 distance=107' 15006+4717 STT 291 distance=107' 15194+4550 HJ 2776AB distance=108' 15194+4550 BU 1446AC distance=108' 15194+4536 GIC 125 distance=116' 14595+4658 WSP 113AB distance=117' 14593+4649 COU1760 distance=118' 15003+4740 ZHN 28 distance=118' 15208+4756 LDS4545 distance=121' 15010+4543 HDS2119 distance=122' 15209+4540 HDS2157 distance=127' 15157+4451 HJ 2772 distance=131' 15009+4526 HDS2118AB distance=134' 15009+4526 GII 214Aa,Ab distance=134' 15016+4513 BRT 338 distance=137' 14595+4528 DAM 30 distance=144' 15233+4544 SLW1088 distance=146' 15204+4840 CVR 784 distance=146' 15111+4424 SKF 10 distance=147' 15145+4427 UC 2969 distance=150' 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 15108+4651 STF1920 109 18.7
Show 15108+4640 ARG 27 45 18.5 7
Show 15129+4650 ES 624 BC 119 19.9 22
Show 15129+4650 ES 624 AB 227 3.0 22
Show 15129+4650 HJ 2770 AC 127 19.2 22
Show 15077+4632 COU1761 268 1.2 37
Show 15060+4637 SKF 719 89 1.8 52
Show 15167+4702 KPP1863 114 14.4 62
Show 15155+4610 UC 2972 180 30.6 63
Show 15105+4800 HDS2131 AB 135 0.2 70
Show 15105+4800 HDS2131 AC 60 3.5 70
Show 15126+4544 MCT 8 220 0.5 70
Show 15173+4731 GRV1207 159 18.9 78
Show 15169+4604 KPP3950 106 1.8 79
Show 15178+4611 ES 1252 16 1.6 82
Show 15038+4739 STF1909 138 0.2 87
Show 15119+4520 SLW1069 66 160.4 92
Show 15054+4809 BU 1086 253 6.8 96
Show 15175+4804 COU1762 72 1.1 100
Show 15144+4518 CBL 60 160 11.0 101
Show 15025+4745 H 6 53 AB 358 87.1 101
Show 15025+4745 L 9001 AC 72 10.8 101
Show 15206+4656 HDS2155 AB 195 1.0 101
Show 15206+4656 GII 220 Aa,Ab 123 0.2 101
Show 15027+4554 ES 1086 266 2.4 102
Show 15087+4508 HJ 2768 119 22.8 105
Show 15127+4835 ES 2648 AB 339 25.9 106
Show 15127+4835 POP1220 AC 305 0.7 106
Show 15127+4835 CTT 14 AD 60 110.8 106
Show 15200+4603 A 1631 AB 252 0.7 106
Show 15200+4603 ES 75 AB,C 35 4.5 106
Show 15145+4831 LDS4539 11 367.9 107
Show 15006+4717 STT 291 156 35.7 107
Show 15194+4550 HJ 2776 AB 311 14.2 108
Show 15194+4550 BU 1446 AC 13 170.6 108
Show 15194+4536 GIC 125 210 19.6 116
Show 14595+4658 WSP 113 AB 290 2.4 117
Show 14593+4649 COU1760 249 0.2 118
Show 15003+4740 ZHN 28 203 4.2 118
Show 15208+4756 LDS4545 238 158.8 121
Show 15010+4543 HDS2119 129 0.2 122
Show 15209+4540 HDS2157 281 0.7 127
Show 15157+4451 HJ 2772 315 9.0 131
Show 15009+4526 HDS2118 AB 165 2.0 134
Show 15009+4526 GII 214 Aa,Ab 108 0.1 134
Show 15016+4513 BRT 338 186 2.9 137
Show 14595+4528 DAM 30 203 63.1 144
Show 15233+4544 SLW1088 169 80.0 146
Show 15204+4840 CVR 784 155 7.9 146
Show 15111+4424 SKF 10 279 12.8 147
Show 15145+4427 UC 2969 336 61.6 150

 
 
WDS 15108+4651 : COMPONENTS
 
 
  A
B pa=117.2°
sep=13.56"
 
 
15108+4651 A
 
 
Componente originario normalizzato AB Name HD 134942 Coord arcsec 2000 151048.36+465100.6 Mag 9.92
Spectral class K0 (yellow-orange) PmRA -94.00 PmDE 29.0 SAO 45416
HIP 74278 Tycho2 3481-00763-1 HD 134942 GC 20429
DM BD+47 2207
Tycho2
Tycho2 3481-00763-1 Pflag RAmdeg 227.70149712 DEmdeg 46.85017677
PmRA -97.9 PmDE 31.7 E RAmdeg 18 E DEmdeg 19
E pmRA 1.9 E pmDE 1.9 EpRAm 1990.59 EpDEm 1990.47
Num 3 Q RAmdeg 0.8 Q DEmdeg 1.2 Q pmRA 0.8
Q pmDE 1.2 BTmag 10.442 E BTmag 0.034 VTmag 9.922
E VTmag 0.029 Prox 187 TYC T HIP 74278
CCDM B RAdeg 227.70183250 DEdeg 46.85010278 EpRA 1990 1.56
EpDE 1990 1.59 E RAdeg 18.3 E DEdeg 19.2 Posflg
Corr 0.0
SAO
SAO 45416 DelFlag RA1950 PmRA1950 -0.0087
DE1950 PmDE1950 0.031 Vmag 8.8 SpType K0
Double code Source 70 CatNum 20429 DM BD+47 2207
DMcomp A BDsup HD 134942 M HD 1
GC 20429 RA1950rad 3.96694934 DE1950rad 0.82093413 PmRA2000 -0.0082
PmDE2000 0.034
Hipparcos
Catalog H HIP 74278 Proxy RAhms 15 10 48.44
DEdms +46 51 00.4 Vmag 9.85 VarFlag R Vmag H
RAdeg 227.702 DEdeg 46.8501 AstroRef B Plx 8.53
CCDM 15108+4651 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual A M HIP
Theta Rho HD 134942 BD
CD CP Dm number VIred 1.14
SpType K0 R SpType Coord arcsec 2000 151048.44+465100.4
Hipparcos 2
HIP 74278 Sn 95 So 3 Nc 1
RArad 3.9741468402 DErad 0.8176885099 Plx 13.68 PmRA -78.4
PmDE 12.35 E RArad 4.44 E DErad 4.39 E Plx 5.46
E pmRA 6.12 E pmDE 5.04 Hpmag 9.9682 E Hpmag 0.0363
SHp 0.199 VA 0 BV 0.582 E BV 0.044
VI 0.65
CCDM
Ccdm 15108+4651 RComp Comp A Note1
Note2 Discov num DRAs 2.15 DDEs -5.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.6 Sp K0 PmNote *
PmRA -91 PmDE 26 Dm number +47 2207 Cat1 BD
Name2 +47 1097 Cat2 AGK2/3 HD 134942 M HD ?
ADS BDS B 7158 M ADS BDS N IDS IDS 15071N4714A
HIC 74281
 
 
15108+4651 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 151049.53+465054.4 Mag 9.98 Spectral class K0 (yellow-orange)
PmRA -95.00 PmDE 29.0 HIP 74281 Tycho2 3481-00713-1
BD BD+47 2207 Calc delta mag 0.06 Calc coord yes
Tycho2
Tycho2 3481-00713-1 Pflag RAmdeg 227.70867447 DEmdeg 46.84843520
PmRA -94.9 PmDE 27.4 E RAmdeg 21 E DEmdeg 22
E pmRA 2.1 E pmDE 2.0 EpRAm 1990.41 EpDEm 1990.24
Num 3 Q RAmdeg 0.6 Q DEmdeg 3.3 Q pmRA 0.6
Q pmDE 3.3 BTmag 10.808 E BTmag 0.043 VTmag 9.983
E VTmag 0.030 Prox 187 TYC T HIP 74281
CCDM A RAdeg 227.70899972 DEdeg 46.84837139 EpRA 1990 1.56
EpDE 1990 1.61 E RAdeg 21.4 E DEdeg 22.1 Posflg
Corr 0.0
Hipparcos
Catalog H HIP 74281 Proxy RAhms 15 10 50.16
DEdms +46 50 54.1 Vmag 9.94 VarFlag R Vmag H
RAdeg 227.709 DEdeg 46.8484 AstroRef A Plx 7.39
CCDM 15108+4651 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source I Qual A M HIP
Theta Rho HD 134942 BD BD+47 2207
CD CP Dm number +47 2207 VIred 1.14
SpType K0 R SpType Coord arcsec 2000 151050.16+465054.1
Hipparcos 2
HIP 74281 Sn 95 So 3 Nc 1
RArad 3.9742715235 DErad 0.8176583197 Plx 12.8 PmRA -84.79
PmDE 22.35 E RArad 3.5 E DErad 3.59 E Plx 4.23
E pmRA 4.92 E pmDE 4.47 Hpmag 10.0515 E Hpmag 0.0378
SHp 0 VA 0 BV 0.755 E BV 0.044
VI 0.8
CCDM
Ccdm 15108+4651 RComp Comp B Note1
Note2 Discov num STF1920 DRAs 0.44 DDEs 0.8
R dRAs 10 Year 1830 Theta 291 Rho 18.9
Obs 6 Vmag 9.6 Sp K0 PmNote *
PmRA -90 PmDE 25 Dm number Cat1
Name2 +47 1096 Cat2 AGK2/3 HD M HD
ADS BDS B 7158 M ADS BDS N IDS IDS 15071N4714B
HIC 74278