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Doubles in session


Current system
17317+3019
STF 2181 AB
HD 159118


Nearby doubles
12' : 17313+3008
RAO 375

22' : 17301+3025
TDT 383

28' : 17300+3035
GRV 957

29' : 17299+3035
SLE 29

39' : 17341+2959
ES 468

43' : 17346+2958
MAB 1AB

48' : 17321+3106
LDS4750

52' : 17277+3024
HO 416AB

52' : 17284+2950
ARY 13

58' : 17348+3100
LDS4756

64' : 17293+2924
A 351AB

67' : 17269+2957
KPP1455

70' : 17296+2916
LDS4744

75' : 17305+3132
KPP2117

77' : 17338+3131
TDT 415

77' : 17319+2902
TDT 397

79' : 17377+3017
HDS2490

79' : 17267+3105
LDS 995

81' : 17302+2901
GRV 959

83' : 17300+3138
LDS4746

89' : 17262+2927
STF2165AB

89' : 17274+3128
HJL1093

92' : 17324+2848
A 352AB

92' : 17249+3045
B 2544

93' : 17248+3044
BU 1250

94' : 17383+3059
TDT 445



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

17317+3019 STF 2181 AB (HD 159118)

 
 
17h 31m 42.54s +30° 19' 05.3" P.A. 328.00 sep 33.0 mag 7.04,10.54 Sp K0
 
 
Coord 2000 17317+3019 Discov num STF2181 Comp AB Coord arcsec 2000 17 31 42.54 +30 19 05.3
Date first 1902 Date last 2015 Obs 31
Pa first 306 Pa last 328 P.A. Now (θ) 328°
Sep first 26.8 Sep last 33.023 Sep. Now (ρ) 33.023"
Mag pri 7.04 Mag sec 10.54 delta mag (ΔM) 3.5 Spectral class K0 (yellow-orange)
Pri motion ra -005 Sec motion ra +030
Pri motion dec -120 Sec motion dec -018
Notes N L U (See Notes, Linear solution, Proper motion indicates non-physical)
rPM=0.898
This double is not physical.
 
 
17317+3019 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 159118 66109 17 31 43 +30 19 05 STF 2181 AB 2015 31 328 33.0 7.04 10.54 3.50 <===
Show 66109 17 31 43 +30 19 05 STF 2181 AC 2015 19 218 37.7 7.04 12.55 5.51
Show 66109 17 31 43 +30 19 05 SLE 27 AD 2015 10 25 164.5 7.04 12.49 5.45
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 159118 Constellation Hercules SAO 66109 HIP 85778
Tycho2 2605-01489-1 Gaia DR2 4599180727226159872 HD 159118 GC 23750
BD BD+30 3013
 
 
WDS 17317+3019 STF 2181 AB (HD 159118) : NOTES
 
 
discov_num notes refcode
STF2181 AB and AC: Optical pairs, based on study of relative motion of the
components using the method of apparent motion parameters. Kiy2008
AB, AC: Rectilinear solutions by Hurowitz et al. (2014). USN2014a
 
 
REFERENCES
 
 
refcode metd author reference
Kiy2008 - Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. 2008SvAL...32..405K
Kiy2008 SvAL 34, 405, 2008
USN2014a lin - Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D. 2014IAUDS.182....1H
USN2014a Inf. Circ. 182, 1, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 SLE Soulie, G.
20 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
17317+3019 STF2181 AB 2007 18 326 32.6 7.04 10.54 K0 N D 173142.54+301905.3
17317+3019 STF2181 AB 2015 20 328 32.9 7.04 10.54 K0 NL U 173142.54+301905.3

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

 
 
WDS 17317+3019 STF 2181 AB (HD 159118) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17317+3019 STF 2181 AB (HD 159118) : MEASURES
 
 
No records found.

 
 
WDS 17317+3019 (HD 159118) : VIRTUAL EYEPIECE
 
 

17317+3019 STF2181A mag 7.04 Sp K0 17317+3019 STF2181B sep 31.8 P.A. 331.70 mag 10.54 17317+3019 STF2181C sep 35.8 P.A. 214.40 mag 12.55 17317+3019 SLE 27D sep 160.6 P.A. 22.20 mag 12.49 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 17317+3019 (HD 159118) : ALADIN DSS IMAGE @ 17h 31m 42.54s +30° 19' 05.3"
 
 
 
 
WDS 17317+3019 STF 2181 AB (HD 159118) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17317+3019 STF2181AB distance=0' 17313+3008 RAO 375 distance=12' 17301+3025 TDT 383 distance=22' 17300+3035 GRV 957 distance=28' 17299+3035 SLE 29 distance=29' 17341+2959 ES 468 distance=39' 17346+2958 MAB 1AB distance=43' 17321+3106 LDS4750 distance=48' 17277+3024 HO 416AB distance=52' 17277+3024 SLE 28AC distance=52' 17284+2950 ARY 13 distance=52' 17348+3100 LDS4756 distance=58' 17293+2924 A 351AB distance=64' 17293+2924 KUI 82AB,C distance=64' 17269+2957 KPP1455 distance=67' 17296+2916 LDS4744 distance=70' 17305+3132 KPP2117 distance=75' 17338+3131 TDT 415 distance=77' 17319+2902 TDT 397 distance=77' 17377+3017 HDS2490 distance=79' 17267+3105 LDS 995 distance=79' 17302+2901 GRV 959 distance=81' 17300+3138 LDS4746 distance=83' 17262+2927 STF2165AB distance=89' 17262+2927 STF2165AC distance=89' 17274+3128 HJL1093 distance=89' 17262+2927 STF2165CD distance=90' 17324+2848 A 352AB distance=92' 17249+3045 B 2544 distance=92' 17248+3044 BU 1250 distance=93' 17383+3059 TDT 445 distance=94' 17372+3124 TDT 435Aa,Ab distance=97' 17372+3124 SEI 544AB distance=97' 17266+3130 UC 3341 distance=97' 17308+3201 ZHN 31 distance=103' 17254+2914 GRV 952 distance=104' 17380+3124 TDT 444 distance=105' 17384+2916 HJ 1301 distance=108' 17359+3205 COU 807 distance=120' 17226+3037 TDT 325 distance=120' 17222+3010 ROE 108 distance=124' 17302+3222 COU 806 distance=125' 17401+2914 STF2192AB distance=127' 17401+2914 FYM 245AC distance=127' 17380+2842 TDS 875 distance=128' 17226+2931 FMR 132 distance=128' 17407+3117 HDS2501Aa,Ab distance=130' 17407+3117 STTA157AB distance=130' 17225+2928 SLW1209 distance=131' 17400+3144 SEI 545 distance=135' 17423+3030 TDT 469 distance=138' 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 17317+3019 STF2181 AB 328 33.0
Show 17317+3019 STF2181 AC 218 37.7
Show 17317+3019 SLE 27 AD 25 164.5
Show 17313+3008 RAO 375 181 0.7 12
Show 17301+3025 TDT 383 242 1.1 22
Show 17300+3035 GRV 957 30 11.5 28
Show 17299+3035 SLE 29 74 37.6 29
Show 17341+2959 ES 468 11 2.3 39
Show 17346+2958 MAB 1 AB 27 0.6 43
Show 17321+3106 LDS4750 19 8.9 48
Show 17277+3024 HO 416 AB 97 4.5 52
Show 17277+3024 SLE 28 AC 275 79.1 52
Show 17284+2950 ARY 13 89 102.9 52
Show 17348+3100 LDS4756 135 135.0 58
Show 17293+2924 A 351 AB 58 0.5 64
Show 17293+2924 KUI 82 AB,C 314 49.9 64
Show 17269+2957 KPP1455 192 10.9 67
Show 17296+2916 LDS4744 162 15.7 70
Show 17305+3132 KPP2117 149 17.2 75
Show 17338+3131 TDT 415 220 0.8 77
Show 17319+2902 TDT 397 354 0.5 77
Show 17377+3017 HDS2490 164 0.2 79
Show 17267+3105 LDS 995 200 68.1 79
Show 17302+2901 GRV 959 356 24.2 81
Show 17300+3138 LDS4746 39 8.5 83
Show 17262+2927 STF2165 AB 62 10.4 89
Show 17262+2927 STF2165 AC 251 94.8 89
Show 17274+3128 HJL1093 326 187.8 89
Show 17262+2927 STF2165 CD 180 52.3 90
Show 17324+2848 A 352 AB 353 0.1 92
Show 17249+3045 B 2544 200 1.2 92
Show 17248+3044 BU 1250 118 1.9 93
Show 17383+3059 TDT 445 176 0.6 94
Show 17372+3124 TDT 435 Aa,Ab 15 0.4 97
Show 17372+3124 SEI 544 AB 276 9.7 97
Show 17266+3130 UC 3341 122 5.5 97
Show 17308+3201 ZHN 31 259 7.1 103
Show 17254+2914 GRV 952 328 22.6 104
Show 17380+3124 TDT 444 212 1.3 105
Show 17384+2916 HJ 1301 102 10.0 108
Show 17359+3205 COU 807 143 0.7 120
Show 17226+3037 TDT 325 126 0.2 120
Show 17222+3010 ROE 108 1 6.0 124
Show 17302+3222 COU 806 102 5.6 125
Show 17401+2914 STF2192 AB 31 16.0 127
Show 17401+2914 FYM 245 AC 156 34.9 127
Show 17380+2842 TDS 875 359 0.9 128
Show 17226+2931 FMR 132 342 31.6 128
Show 17407+3117 HDS2501 Aa,Ab 78 0.8 130
Show 17407+3117 STTA157 AB 106 118.3 130
Show 17225+2928 SLW1209 12 19.0 131

 
 
WDS 17317+3019 : COMPONENTS
 
 
  A B C
B pa=331.7°
sep=31.82"
 
C pa=214.4°
sep=35.78"
pa=185.1°
sep=57.76"
 
D pa=22.2°
sep=160.63"
pa=32.1°
sep=142.53"
pa=24.4°
sep=195.74"
 
 
17317+3019 A
 
 
Name HD 159118 Coord arcsec 2000 173142.54+301905.3 Mag 7.04 Spectral class K0 (yellow-orange)
PmRA -5.00 PmDE -120.0 SAO 66109 HIP 85781
Tycho2 2605-01489-1 HD 159118 GC 23750 BD BD+30 3013
Tycho2
Tycho2 2605-01489-1 Pflag RAmdeg 262.92721923 DEmdeg 30.31783463
PmRA -7.1 PmDE -125.0 E RAmdeg 4 E DEmdeg 4
E pmRA 1.2 E pmDE 1.3 EpRAm 1991.30 EpDEm 1991.45
Num 13 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 0.9
Q pmDE 1.1 BTmag 8.250 E BTmag 0.015 VTmag 7.042
E VTmag 0.010 Prox 314 TYC T HIP 85781
CCDM RAdeg 262.92723889 DEdeg 30.31812278 EpRA 1990 1.58
EpDE 1990 1.69 E RAdeg 4.1 E DEdeg 4.0 Posflg
Corr -0.1
SAO
SAO 66109 DelFlag RA1950 PmRA1950 -0.0005
DE1950 PmDE1950 -0.128 Vmag 7.1 SpType K0
Double code Source 70 CatNum 23750 DM BD+30 3013
DMcomp BDsup HD 159118 M HD 0
GC 23750 RA1950rad 4.58058286 DE1950rad 0.52979417 PmRA2000 -0.0002
PmDE2000 -0.127
Hipparcos
Catalog H HIP 85781 Proxy RAhms 17 31 42.54
DEdms +30 19 05.3 Vmag 6.91 VarFlag R Vmag G
RAdeg 262.927 DEdeg 30.3181 AstroRef Plx 11.92
CCDM 17317+3019 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 159118 BD BD+30 3013
CD CP Dm number +30 3013 VIred 1
SpType K0 R SpType Coord arcsec 2000 173142.54+301905.3
Hipparcos 2
HIP 85781 Sn 5 So 0 Nc 1
RArad 4.5889460381 DErad 0.5291513519 Plx 11.52 PmRA -5.11
PmDE -120.01 E RArad 0.31 E DErad 0.4 E Plx 0.5
E pmRA 0.34 E pmDE 0.48 Hpmag 7.0903 E Hpmag 0.0012
SHp 0.012 VA 0 BV 1.087 E BV 0.197
VI 1
CCDM
Ccdm 17317+3019 RComp Comp A Note1
Note2 Discov num DRAs 0.54 DDEs 4.4
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.2 Sp K0 PmNote *
PmRA -3 PmDE -123 Dm number +30 3013 Cat1 BD
Name2 +30 1607 Cat2 AGK2/3 HD 159118 M HD
ADS BDS B 8059 M ADS BDS N IDS IDS 17279N3024A
HIC 85781
 
 
17317+3019 B
 
 
Coord arcsec 2000 173141.37+301933.3 Mag 10.54 PmRA 30.00 PmDE -18.0
HIP 85778 Calc delta mag 3.5 Calc coord yes
Hipparcos
Catalog H HIP 85778 Proxy RAhms 17 31 41.01
DEdms +30 19 23.8 Vmag 10.41 VarFlag R Vmag H
RAdeg DEdeg AstroRef Plx
CCDM 17317+3019 N CCDM I Nsys 2 Ncomp
MultFlag Source Qual S M HIP
Theta Rho HD BD
CD CP Dm number VIred 0.72
SpType R SpType Coord arcsec 2000 173141.01+301923.8
CCDM
Ccdm 17317+3019 RComp Comp B Note1
Note2 Discov num STF2181 DRAs DDEs
R dRAs Year 1926 Theta 313 Rho 27.2
Obs 3 Vmag 9.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 8059 M ADS BDS N N IDS IDS 17279N3024B
HIC 85778
 
 
17317+3019 C
 
 
Coord arcsec 2000 173140.98+301835.8 Mag 12.55 PmRA -2.00 PmDE 5.0
Calc delta mag 5.51 Calc coord yes
CCDM
Ccdm 17317+3019 RComp Comp C Note1
Note2 Discov num STF2181 DRAs DDEs
R dRAs Year 1926 Theta 210 Rho 47.8
Obs 1 Vmag 10.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 8059 M ADS BDS N IDS IDS 17279N3024C
HIC
 
 
17317+3019 D
 
 
Coord arcsec 2000 173147.23+302134.0 Mag 12.49 PmRA -9.00 PmDE 15.0
Calc delta mag 5.45 Calc coord yes