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Doubles in session


Current system
09270+6421
STF 1345
HD 81161


Nearby doubles
26' : 09251+6358
CBL 277

33' : 09317+6432
TDS6622

44' : 09314+6348
LDS2578

47' : 09200+6412
SKF2454

52' : 09256+6329
JNN 275

53' : 09188+6424
LDS2308

61' : 09352+6449
TDS6664

69' : 09166+6410
BVD 310

73' : 09171+6349
SLW 343

74' : 09380+6406
TDS6702

76' : 09307+6532
HDS1366

78' : 09385+6441
DAM1679

81' : 09391+6440
TDS6718

82' : 09156+6456
LDS1224

83' : 09315+6304
STF1351AB

87' : 09230+6544
TDS6520

90' : 09311+6546
TDS6617

95' : 09127+6442
MMA 37

95' : 09226+6251
MLB 203AB

99' : 09119+6436
CVR 87

99' : 09156+6526
LDS2576

101' : 09424+6422
CBL 288

101' : 09257+6240
CVR1222

102' : 09162+6536
LDS2306

102' : 09418+6457
TDS6752

105' : 09115+6453
SKF2571



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.

09270+6421 STF 1345 (HD 81161)

 
 
09h 26m 57.20s +64° 20' 35.7" P.A. 85.00 sep 2.9 mag 8.84,10.27 Sp A2 dist. 289.86 pc (945.52 l.y.)
 
 
Coord 2000 09270+6421 Discov num STF1345 Comp Coord arcsec 2000 09 26 57.20 +64 20 35.7
Date first 1832 Date last 2016 Obs 24
Pa first 88 Pa last 85.3 P.A. Now (θ) 85.3°
Sep first 2.0 Sep last 2.858 Sep. Now (ρ) 2.858"
Mag pri 8.84 Mag sec 10.27 delta mag (ΔM) 1.43 Spectral class A2 (white)
Pri motion ra -020 Sec motion ra -005
Pri motion dec +006 Sec motion dec +006
Notes
rPM=0.718
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 81161 Constellation Ursa Major SAO 14877 HIP 46347
Tycho2 4138-01154-1 Gaia DR2 1064494175299512704 HD 81161 GC 12993
BD BD+64 735 Distance 289.86 Distance ly 945.52
 
 
WDS 09270+6421 STF 1345 (HD 81161) : 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
09270+6421 STF1345 2001 18 86 2.9 8.84 10.27 A2 092657.20+642035.7
09270+6421 STF1345 2003 19 85 2.8 8.84 10.27 A2 092657.20+642035.7
09270+6421 STF1345 2012 20 86 2.7 8.84 10.27 A2 092657.20+642035.7
09270+6421 STF1345 2015 21 85 2.9 8.84 10.27 A2 092657.20+642035.7
09270+6421 STF1345 2016 24 85 2.9 8.84 10.27 A2 092657.20+642035.7

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

 
 
WDS 09270+6421 STF 1345 (HD 81161) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 09270+6421 STF 1345 (HD 81161) : MEASURES
 
 
No records found.

 
 
WDS 09270+6421 (HD 81161) : VIRTUAL EYEPIECE
 
 

09270+6421 STF1345A mag 8.84 Sp A2 09270+6421 STF1345B sep 1.3 P.A. 79.20 mag 10.27 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 09270+6421 (HD 81161) : ALADIN DSS IMAGE @ 09h 26m 57.20s +64° 20' 35.7"
 
 
 
 
WDS 09270+6421 STF 1345 (HD 81161) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

09270+6421 STF1345 distance=0' 09251+6358 CBL 277 distance=26' 09317+6432 TDS6622 distance=33' 09314+6348 LDS2578 distance=44' 09200+6412 SKF2454 distance=47' 09256+6329 JNN 275 distance=52' 09188+6424 LDS2308 distance=53' 09352+6449 TDS6664 distance=61' 09166+6410 BVD 310 distance=69' 09171+6349 SLW 343 distance=73' 09380+6406 TDS6702 distance=74' 09307+6532 HDS1366 distance=76' 09385+6441 DAM1679 distance=78' 09391+6440 TDS6718 distance=81' 09156+6456 LDS1224 distance=82' 09315+6304 STF1351AB distance=83' 09315+6304 STF1351AC distance=83' 09230+6544 TDS6520 distance=87' 09311+6546 TDS6617 distance=90' 09127+6442 MMA 37 distance=95' 09226+6251 MLB 203AB distance=95' 09226+6251 UC 1781AC distance=95' 09119+6436 CVR 87 distance=99' 09156+6526 LDS2576 distance=99' 09424+6422 CBL 288 distance=101' 09257+6240 CVR1222 distance=101' 09162+6536 LDS2306 distance=102' 09418+6457 TDS6752 distance=102' 09115+6453 SKF2571 distance=105' 09173+6547 LDS2307 distance=106' 09103+6506 LDS2304 distance=117' 09109+6331 H 5 73AB distance=117' 09109+6331 STU 7AC distance=117' 09381+6249 ES 1902 distance=119' 09089+6406 LDS2303 distance=119' 09446+6459 CHR 176 distance=120' 09379+6241 PKO 9 distance=125' 09077+6459 STF1303 distance=130' 09411+6250 TDS6738 distance=131' 09459+6339 KUI 43 distance=132' 09336+6216 HU 228 distance=132' 09083+6517 HU 1126 distance=133' 09135+6237 TDS6404 distance=138' 09228+6638 TDS6517 distance=141' 09467+6530 TDS6800 distance=144' 09194+6203 RAO 569 distance=147' 09322+6157 TDS6632 distance=148' 09162+6633 CVR 526 distance=149' 09343+6648 STF1350BC distance=154' 09343+6648 STF1350AB distance=155' 09343+6648 STF1350AC distance=155' 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 09270+6421 STF1345 85 2.9
Show 09251+6358 CBL 277 296 14.1 26
Show 09317+6432 TDS6622 269 0.5 33
Show 09314+6348 LDS2578 9 49.2 44
Show 09200+6412 SKF2454 239 15.0 47
Show 09256+6329 JNN 275 93 0.1 52
Show 09188+6424 LDS2308 195 17.8 53
Show 09352+6449 TDS6664 51 0.6 61
Show 09166+6410 BVD 310 318 37.3 69
Show 09171+6349 SLW 343 219 86.5 73
Show 09380+6406 TDS6702 245 0.5 74
Show 09307+6532 HDS1366 77 0.2 76
Show 09385+6441 DAM1679 23 3.5 78
Show 09391+6440 TDS6718 356 0.4 81
Show 09156+6456 LDS1224 309 6.0 82
Show 09315+6304 STF1351 AB 267 22.7 83
Show 09315+6304 STF1351 AC 232 107.4 83
Show 09230+6544 TDS6520 158 1.4 87
Show 09311+6546 TDS6617 170 0.6 90
Show 09127+6442 MMA 37 155 13.5 95
Show 09226+6251 MLB 203 AB 92 7.6 95
Show 09226+6251 UC 1781 AC 245 109.3 95
Show 09119+6436 CVR 87 304 106.0 99
Show 09156+6526 LDS2576 314 9.6 99
Show 09424+6422 CBL 288 277 14.8 101
Show 09257+6240 CVR1222 121 3.8 101
Show 09162+6536 LDS2306 128 4.0 102
Show 09418+6457 TDS6752 123 0.8 102
Show 09115+6453 SKF2571 346 9.9 105
Show 09173+6547 LDS2307 45 73.1 106
Show 09103+6506 LDS2304 129 4.7 117
Show 09109+6331 H 5 73 AB 36 51.6 117
Show 09109+6331 STU 7 AC 7 126.5 117
Show 09381+6249 ES 1902 269 9.1 119
Show 09089+6406 LDS2303 122 126.1 119
Show 09446+6459 CHR 176 212 0.1 120
Show 09379+6241 PKO 9 286 6.8 125
Show 09077+6459 STF1303 282 2.8 130
Show 09411+6250 TDS6738 9 0.5 131
Show 09459+6339 KUI 43 25 6.2 132
Show 09336+6216 HU 228 73 0.6 132
Show 09083+6517 HU 1126 36 3.9 133
Show 09135+6237 TDS6404 241 0.5 138
Show 09228+6638 TDS6517 185 0.5 141
Show 09467+6530 TDS6800 19 0.6 144
Show 09194+6203 RAO 569 189 0.8 147
Show 09322+6157 TDS6632 74 0.5 148
Show 09162+6633 CVR 526 105 9.2 149
Show 09343+6648 STF1350 BC 213 122.6 154
Show 09343+6648 STF1350 AB 249 10.2 155
Show 09343+6648 STF1350 AC 216 131.0 155

 
 
WDS 09270+6421 : COMPONENTS
 
 
  A
B pa=79.2°
sep=1.26"
 
 
09270+6421 A
 
 
Componente originario normalizzato AB Name HD 81161 Coord arcsec 2000 092657.20+642035.7 Mag 8.84
Spectral class A2 (white) PmRA -20.00 PmDE 6.0 SAO 14877
HIP 46347 Tycho2 4138-01154-1 HD 81161 GC 12993
BD BD+64 735
Tycho2
Tycho2 4138-01154-1 Pflag P RAmdeg 141.73831534 DEmdeg 64.34323854
PmRA -9.3 PmDE 11.4 E RAmdeg 18 E DEmdeg 20
E pmRA 2.0 E pmDE 2.0 EpRAm 1990.69 EpDEm 1990.40
Num 5 Q RAmdeg 1.8 Q DEmdeg 0.9 Q pmRA 1.9
Q pmDE 0.9 BTmag 9.040 E BTmag 0.016 VTmag 8.837
E VTmag 0.013 Prox 28 TYC T HIP 46347
CCDM A RAdeg 141.73816278 DEdeg 64.34320500 EpRA 1990 1.71
EpDE 1990 1.68 E RAdeg 6.0 E DEdeg 6.2 Posflg D
Corr -0.1
SAO
SAO 14877 DelFlag RA1950 PmRA1950 -0.0019
DE1950 PmDE1950 0.009 Vmag 8.3 SpType A2
Double code Source 70 CatNum 12993 DM BD+64 735
DMcomp BDsup HD 81161 M HD 0
GC 12993 RA1950rad 2.4562535 DE1950rad 1.12678863 PmRA2000 -0.0018
PmDE2000 0.012
Hipparcos
Catalog H HIP 46347 Proxy H RAhms 09 26 57.16
DEdms +64 20 35.5 Vmag 8.52 VarFlag R Vmag H
RAdeg 141.738 DEdeg 64.3432 AstroRef A Plx 5.62
CCDM 09270+6421 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 86 Rho 2.841 HD 81161 BD BD+64 735
CD CP Dm number +64 735 VIred 0.34
SpType A2 R SpType Coord arcsec 2000 092657.16+642035.5
Hipparcos 2
HIP 46347 Sn 15 So 3 Nc 2
RArad 2.4737976873 DErad 1.1230007526 Plx 3.45 PmRA -6.28
PmDE 6.79 E RArad 0.74 E DErad 0.66 E Plx 1.16
E pmRA 0.87 E pmDE 0.78 Hpmag 8.592 E Hpmag 0.0015
SHp 0.022 VA 0 BV 0.296 E BV 0.015
VI 0.34
CCDM
Ccdm 09270+6421 RComp Comp A Note1
Note2 Discov num DRAs -2.78 DDEs -24.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.4 Sp A2 PmNote *
PmRA -11 PmDE 3 Dm number +64 735 Cat1 BD
Name2 +64 466 Cat2 AGK2/3 HD 81161 M HD
ADS BDS A 7364 M ADS BDS N IDS IDS 09189N6446A
HIC 46347
 
 
09270+6421 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 092657.39+642035.9 Mag 10.27 PmRA -5.00
PmDE 6.0 Tycho2 4138-01154-2 Calc delta mag 1.43 Calc coord yes
Tycho2
Tycho2 4138-01154-2 Pflag P RAmdeg 141.73831534 DEmdeg 64.34323854
PmRA -9.3 PmDE 11.4 E RAmdeg 18 E DEmdeg 20
E pmRA 2.0 E pmDE 2.0 EpRAm 1990.69 EpDEm 1990.40
Num 5 Q RAmdeg 1.8 Q DEmdeg 0.9 Q pmRA 1.9
Q pmDE 0.9 BTmag 10.680 E BTmag 0.032 VTmag 10.269
E VTmag 0.029 Prox 28 TYC T HIP 46347
CCDM B RAdeg 141.73997250 DEdeg 64.34327028 EpRA 1990 1.72
EpDE 1990 1.65 E RAdeg 18.2 E DEdeg 19.6 Posflg D
Corr -0.1
CCDM
Ccdm 09270+6421 RComp Comp B Note1
Note2 Discov num STF1345 DRAs DDEs
R dRAs Year 1832 Theta 085 Rho 2.7
Obs 9 Vmag 10.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 7364 M ADS BDS N IDS IDS 09189N6446B
HIC 46347