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Current system
18113+6915
STF 2307
HD 167855


Nearby doubles
27' : 18099+6941
ARR 1

30' : 18145+6851
LDS1463

43' : 18055+6945
TDT 673

45' : 18161+6839
LDS1464

60' : 18216+6855
A 1169

61' : 18225+6924
UC 239

64' : 18168+7011
TDT 771AB

64' : 18054+6820
TDT 671

71' : 18006+6833
LDS1460

74' : 18164+7023
KPP4097

81' : 17571+6849
LDS1459

95' : 18276+7000
LDS1886

96' : 18186+7042
SKF2737

99' : 18128+6737
UC 237

104' : 18196+6743
MLB 413

107' : 17535+7009
A 1373

110' : 18058+7101
TDS 904

114' : 18114+6721
LDS1462

135' : 18208+7120
STT 353AB

138' : 18072+7131
A 1168

139' : 17552+6729
HU 925

146' : 18263+7119
TDT 867

151' : 18211+7137
GIC9022

155' : 18212+6651
KPP4105

163' : 18022+7151
UC 235

169' : 18312+7131
WIS 328



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.

18113+6915 STF 2307 (HD 167855)

 
 
18h 11m 15.24s +69° 14' 59.8" P.A. 205.00 sep 4.4 mag 9.07,9.12 Sp G0 dist. 152.67 pc (498.01 l.y.)
 
 
Coord 2000 18113+6915 Discov num STF2307 Comp Coord arcsec 2000 18 11 15.24 +69 14 59.8
Date first 1832 Date last 2018 Obs 35
Pa first 205 Pa last 205.1 P.A. Now (θ) 205.1°
Sep first 4.3 Sep last 4.377 Sep. Now (ρ) 4.377"
Mag pri 9.07 Mag sec 9.12 delta mag (ΔM) 0.05 Spectral class G0 (yellow)
Pri motion ra +011 Sec motion ra +011
Pri motion dec +030 Sec motion dec +027
Notes
rPM=0.094 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 167855 Constellation Draco SAO 17810 HIP 89113
Tycho2 4429-02059-1 Gaia DR2 2260001448874494080 HD 167855 GC 24879
BD BD+69 970 Distance 152.67 Distance ly 498.01
 
 
WDS 18113+6915 STF 2307 (HD 167855) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
STFA (F. Struve DD - Appendix list #1) ...................
STFB (F. Struve DD - Appendix list #2) ...................
StF1833A Ma - Struve, F.G.W. 1833MmRAS...5...13H
StF1833A +Mc cited by Herschel (MemRAS 5, 13, 1833)
StF1833B Ma - Struve, F.G.W. 1833AN.....10..389B
StF1833B cited by Bessel (AN 10, 389, 1833)
StF1837 Ma - Struve, F.G.W. 1837AN.....14...249
StF1837 Stellarum duplicium et multiplicium mensurae micrometricae...
StF1837 (Dorpat, Academiae scientiarum caesareae petropolitaneifique), 1837
StF1844A Ma - Struve, F.G.W. 1844QB43.S66.......
StF1844A cited by Smyth (Cycle of Celestial Objects 2, 1844)
StF1852A Ma - Struve, F.G.W. .
StF1852A cited by Bishop (Bishop Obs. Astron. Observations 1852)
StF1865A Ma - Struve, F.G.W. 1865AN.....64...81E
StF1865A cited by Engelmann (AN 64, 81, #1518, 1865)
StF1875A Ma - Struve, F.G.W. 1875AN.....85..323D
StF1875A cited by Doberck, 1875 (see Dob1875b,f,g,h)
StF1878 Ma - Struve, F.G.W. .
StF1878 Pulkova Observations 9, 1878
StF1878B Ma - Struve, F.G.W. 1878Obs.....2..239G
StF1878B cited by Gledhill (Obs 2, 239, 1878)
StF1880A Ma - Struve, F.G.W. 1880Obs.....3..535G
StF1880A cited by Gledhill (Obs 3, 535, 1880)
StF1906A Ma - Struve, F.G.W. 1906QB821.B972.....
StF1906A cited in BDS (Burnham Double Star Cat.), 1906
StF1906B Ma - Struve, F.G.W. 1906MmRAS..56....1L
StF1906B cited by Lewis (MemRAS 56, 1, 1906)
StF1922A Ma - Struve, F.G.W. 1922AN....216...49R
StF1922A cited by Rabe (AN 216, 49, 1922)
StF1932A Ma - Struve, F.G.W. 1932QB821.A43......
StF1932A cited in ADS (Aitken Double Star Cat.), 1932
StF2002 - - Weis, J.
StF2002 F. G. W. Struve's double stars : the Dorpat catalogue; the Pulkovo catalogue
StF2002 USNO Library : QB 821 .S8 W49 2002
StF2022 - - email note from Jan Weis: 6 July 2022
StF9999 Ma - Struve, F.G.W. ...................
StF9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18113+6915 STF2307 1999 28 205 4.2 9.07 9.12 G0 D 181115.24+691459.8
18113+6915 STF2307 2009 29 205 4.3 9.07 9.12 G0 D 181115.24+691459.8
18113+6915 STF2307 2015 32 206 4.4 9.07 9.12 G0 181115.24+691459.8
18113+6915 STF2307 2018 33 206 4.4 9.07 9.12 G0 181115.24+691459.8

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

 
 
WDS 18113+6915 STF 2307 (HD 167855) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18113+6915 STF 2307 (HD 167855) : MEASURES
 
 
No records found.

 
 
WDS 18113+6915 (HD 167855) : VIRTUAL EYEPIECE
 
 

18113+6915 STF2307A mag 9.07 Sp G0 18113+6915 STF2307B sep 4.0 P.A. 189.40 mag 9.12 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 18113+6915 (HD 167855) : ALADIN DSS IMAGE @ 18h 11m 15.24s +69° 14' 59.8"
 
 
 
 
WDS 18113+6915 STF 2307 (HD 167855) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18113+6915 STF2307 distance=0' 18099+6941 ARR 1 distance=27' 18145+6851 LDS1463 distance=30' 18055+6945 TDT 673 distance=43' 18161+6839 LDS1464 distance=45' 18216+6855 A 1169 distance=60' 18225+6924 UC 239 distance=61' 18168+7011 TDT 771AB distance=64' 18054+6820 TDT 671 distance=64' 18006+6833 LDS1460 distance=71' 18164+7023 KPP4097 distance=74' 17571+6849 LDS1459 distance=81' 18276+7000 LDS1886 distance=95' 18186+7042 SKF2737 distance=96' 18128+6737 UC 237 distance=99' 18196+6743 MLB 413 distance=104' 17535+7009 A 1373 distance=107' 18058+7101 TDS 904 distance=110' 18114+6721 LDS1462 distance=114' 18208+7120 STT 353AB distance=135' 18208+7120 STT 353AB,C distance=135' 18072+7131 A 1168 distance=138' 17552+6729 HU 925 distance=139' 18263+7119 TDT 867 distance=146' 18211+7137 GIC9022 distance=151' 18212+6651 KPP4105 distance=155' 18022+7151 UC 235 distance=163' 18312+7131 WIS 328 distance=169' 17528+6700 BRD 3BC distance=170' 17528+6700 BRD 3AB distance=170' 17528+6700 BRD 3AC distance=170' 17528+6700 ABH 91AD distance=170' 17528+6700 ABH 91AE distance=170' 18053+7217 TDT 668 distance=185' 18241+6619 TDT 832 distance=191' 18241+7220 BVD 127 distance=196' 18014+6557 STF2284 distance=206' 18118+7248 UC 3528 distance=213' 18211+7244 LAB 5Aa,Ab distance=215' 18211+7244 BUP 182AB distance=215' 18063+6543 LDS1461 distance=215' 18211+7244 BUP 182BC distance=218' 18312+6608 ES 1911 distance=219' 18260+6534 UC 3580 (Fafnir) distance=237' 17527+6540 SLW1215 distance=241' 18040+6516 SLW1217 distance=244' 18045+7316 HDS2544 distance=244' 17537+6528 GIC9021 distance=249' 18020+6508 CVR 867 distance=253' 18275+7316 TOI2253 distance=254' 18312+6526 KUI 86 distance=257' 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 18113+6915 STF2307 205 4.4
Show 18099+6941 ARR 1 53 1.2 27
Show 18145+6851 LDS1463 346 15.0 30
Show 18055+6945 TDT 673 241 2.0 43
Show 18161+6839 LDS1464 32 110.2 45
Show 18216+6855 A 1169 304 1.0 60
Show 18225+6924 UC 239 264 23.8 61
Show 18168+7011 TDT 771 AB 55 0.6 64
Show 18054+6820 TDT 671 90 0.6 64
Show 18006+6833 LDS1460 171 30.6 71
Show 18164+7023 KPP4097 323 5.5 74
Show 17571+6849 LDS1459 141 17.4 81
Show 18276+7000 LDS1886 44 96.0 95
Show 18186+7042 SKF2737 265 29.7 96
Show 18128+6737 UC 237 172 57.0 99
Show 18196+6743 MLB 413 147 2.6 104
Show 17535+7009 A 1373 334 2.8 107
Show 18058+7101 TDS 904 108 0.9 110
Show 18114+6721 LDS1462 237 119.1 114
Show 18208+7120 STT 353 AB 262 0.5 135
Show 18208+7120 STT 353 AB,C 117 72.5 135
Show 18072+7131 A 1168 327 0.7 138
Show 17552+6729 HU 925 327 1.9 139
Show 18263+7119 TDT 867 303 1.8 146
Show 18211+7137 GIC9022 318 2.0 151
Show 18212+6651 KPP4105 151 1.5 155
Show 18022+7151 UC 235 353 32.8 163
Show 18312+7131 WIS 328 182 940.0 169
Show 17528+6700 BRD 3 BC 152 10.6 170
Show 17528+6700 BRD 3 AB 325 20.0 170
Show 17528+6700 BRD 3 AC 317 9.5 170
Show 17528+6700 ABH 91 AD 239 75.8 170
Show 17528+6700 ABH 91 AE 233 79.2 170
Show 18053+7217 TDT 668 43 2.0 185
Show 18241+6619 TDT 832 131 2.3 191
Show 18241+7220 BVD 127 327 19.8 196
Show 18014+6557 STF2284 192 3.6 206
Show 18118+7248 UC 3528 177 37.8 213
Show 18211+7244 LAB 5 Aa,Ab 220 0.1 215
Show 18211+7244 BUP 182 AB 357 177.8 215
Show 18063+6543 LDS1461 203 4.7 215
Show 18211+7244 BUP 182 BC 303 9.1 218
Show 18312+6608 ES 1911 293 5.7 219
Show Fafnir 18260+6534 UC 3580 208 24.4 237
Show 17527+6540 SLW1215 256 9.5 241
Show 18040+6516 SLW1217 182 66.3 244
Show 18045+7316 HDS2544 29 6.9 244
Show 17537+6528 GIC9021 303 1.2 249
Show 18020+6508 CVR 867 253 14.7 253
Show 18275+7316 TOI2253 291 26.3 254
Show 18312+6526 KUI 86 44 23.0 257

 
 
WDS 18113+6915 : COMPONENTS
 
 
  A
B pa=189.4°
sep=4.02"
 
 
18113+6915 A
 
 
Componente originario normalizzato AB Name HD 167855 Coord arcsec 2000 181115.24+691459.8 Mag 9.07
Spectral class G0 (yellow) PmRA 11.00 PmDE 30.0 SAO 17810
HIP 89113 Tycho2 4429-02059-1 HD 167855 GC 24879
BD BD+69 970
Tycho2
Tycho2 4429-02059-1 Pflag RAmdeg 272.81350575 DEmdeg 69.24993605
PmRA 10.5 PmDE 31.0 E RAmdeg 11 E DEmdeg 14
E pmRA 1.4 E pmDE 1.3 EpRAm 1991.08 EpDEm 1990.40
Num 5 Q RAmdeg 2.0 Q DEmdeg 0.6 Q pmRA 1.9
Q pmDE 0.5 BTmag 9.645 E BTmag 0.025 VTmag 9.075
E VTmag 0.020 Prox 44 TYC T HIP 89113
CCDM A RAdeg 272.81343778 DEdeg 69.24986333 EpRA 1990 1.76
EpDE 1990 1.57 E RAdeg 10.6 E DEdeg 13.6 Posflg
Corr 0.1
SAO
SAO 17810 DelFlag RA1950 PmRA1950 -0.003
DE1950 PmDE1950 0.034 Vmag 8.8 SpType G0
Double code Source 70 CatNum 24879 DM BD+69 970
DMcomp A BDsup HD 167855 M HD 1
GC 24879 RA1950rad 4.76305952 DE1950rad 1.20837007 PmRA2000 -0.0019
PmDE2000 0.033
Hipparcos
Catalog H HIP 89113 Proxy H RAhms 18 11 15.22
DEdms +69 14 59.5 Vmag 8.33 VarFlag R Vmag H
RAdeg 272.813 DEdeg 69.2499 AstroRef A Plx 6.85
CCDM 18112+6915 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 205 Rho 4.348 HD 167855 BD BD+69 970
CD CP Dm number +69 970 VIred 0.76
SpType G0 R SpType Coord arcsec 2000 181115.22+691459.5
Hipparcos 2
HIP 89113 Sn 15 So 3 Nc 2
RArad 4.7614924018 DErad 1.2086381446 Plx 6.55 PmRA 11.51
PmDE 29.62 E RArad 1.3 E DErad 1.48 E Plx 1.18
E pmRA 1.44 E pmDE 1.83 Hpmag 8.4434 E Hpmag 0.0019
SHp 0.016 VA 0 BV 0.521 E BV 0.029
VI 0.59
 
 
18113+6915 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 181115.12+691455.8 Mag 9.12 PmRA 11.00
PmDE 27.0 HIP 89113 Tycho2 4429-02059-2 Calc delta mag 0.05
Calc coord yes
Tycho2
Tycho2 4429-02059-2 Pflag RAmdeg 272.81205376 DEmdeg 69.24883914
PmRA 10.4 PmDE 30.1 E RAmdeg 11 E DEmdeg 14
E pmRA 1.3 E pmDE 1.3 EpRAm 1990.97 EpDEm 1990.17
Num 6 Q RAmdeg 1.9 Q DEmdeg 1.4 Q pmRA 1.9
Q pmDE 1.4 BTmag 9.656 E BTmag 0.025 VTmag 9.119
E VTmag 0.020 Prox 44 TYC T HIP 89113
CCDM B RAdeg 272.81198667 DEdeg 69.24876778 EpRA 1990 1.74
EpDE 1990 1.48 E RAdeg 10.9 E DEdeg 13.7 Posflg
Corr 0.1
Hipparcos
Catalog H HIP 89113 Proxy H RAhms 18 11 15.22
DEdms +69 14 59.5 Vmag 8.33 VarFlag R Vmag H
RAdeg 272.813 DEdeg 69.2499 AstroRef A Plx 6.85
CCDM 18112+6915 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 205 Rho 4.348 HD 167855 BD BD+69 970
CD CP Dm number +69 970 VIred 0.76
SpType G0 R SpType Coord arcsec 2000 181115.22+691459.5
Hipparcos 2
HIP 89113 Sn 15 So 3 Nc 2
RArad 4.7614924018 DErad 1.2086381446 Plx 6.55 PmRA 11.51
PmDE 29.62 E RArad 1.3 E DErad 1.48 E Plx 1.18
E pmRA 1.44 E pmDE 1.83 Hpmag 8.4434 E Hpmag 0.0019
SHp 0.016 VA 0 BV 0.521 E BV 0.029
VI 0.59