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Current system
17294-3831
B 342
HD 158156


Nearby doubles
8' : 17293-3839
TOK 792

13' : 17303-3839
I 1325

25' : 17315-3838
ARY 123AB

28' : 17318-3833
RST1965

38' : 17313-3901
HWE 87

43' : 17263-3853
I 1319

59' : 17336-3800
B 913

66' : 17241-3849
KPP4038

67' : 17308-3726
B 912

68' : 17244-3759
RST3092

68' : 17352-3837
RST1973

71' : 17316-3725
TDT 395

72' : 17299-3942
RSS 445

75' : 17232-3821
RST1955

80' : 17254-3727
BRT1717

82' : 17227-3812
I 1317

83' : 17261-3718
RST3096

90' : 17334-3947
RST1968

91' : 17227-3748
B 908AB

93' : 17243-3722
RST3091

94' : 17228-3739
B 909

96' : 17335-3953
WG 209

99' : 17336-3706
SEE 334AB
Shaula

102' : 17237-3948
RST1958

104' : 17232-3946
WG 206AB

105' : 17289-3647
CHR 183



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.

17294-3831 B 342 (HD 158156)

 
 
17h 29m 25.62s -38° 31' 01.0" P.A. 115.00 sep 0.4 mag 6.82,7.57 Sp A2V dist. 117.51 pc (383.32 l.y.)
 
 
Coord 2000 17294-3831 Discov num B   342 Comp Coord arcsec 2000 17 29 25.62 -38 31 01.0
Date first 1925 Date last 2016 Obs 30
Pa first 72 Pa last 115.4 P.A. Now (θ) 115.4°
Sep first 0.4 Sep last 0.41 Sep. Now (ρ) 0.41"
Mag pri 6.82 Mag sec 7.57 delta mag (ΔM) 0.75 Spectral class A2V (white)
Pri motion ra +021 Sec motion ra +021
Pri motion dec +007 Sec motion dec +007
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 158156 Constellation Scorpius SAO 208870 HIP 85589
Tycho2 7883-00469-1 Gaia DR2 5962029684873161088 HD 158156 HR 6503
GC 23673 CD CD-3811927 CP CP-38 6862 Distance 117.51
Distance ly 383.32
 
 
ORBITAL ELEMENTS
 
 
Period (P)1236y Periastron (T)2016y Semi-major axis (a)1.38a
Eccentricity (e)0.68 Inclination (i)73° Longitude of periastron (ω)38°
Node (Ω)103° Notes ReferenceHrt2013c
Equinox2000 Last observation2008 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 104.8 0.468
2001 105.3 0.463
2002 105.9 0.458
2003 106.5 0.452
2004 107.0 0.446
2005 107.6 0.440
2006 108.3 0.434
2007 108.9 0.427
2008 109.6 0.421
2009 110.3 0.413
2010 111.0 0.406
2011 111.7 0.398
2012 112.5 0.391
2013 113.3 0.383
2014 114.1 0.374
2015 115.0 0.366
2016 115.9 0.357
2017 116.8 0.348
2018 117.8 0.339
2019 118.9 0.330
2020 120.0 0.320
2021 121.2 0.311
2022 122.5 0.301
2023 123.8 0.292
2024 125.3 0.282
2025 126.8 0.272
2026 128.5 0.262
2027 130.3 0.253
2028 132.2 0.243
2029 134.3 0.234
2030 136.6 0.224


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


 
  


wds17294-3831a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 17294-3831 B 342 (HD 158156) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hrt2013c orb - Hartkopf, W.I. & Harshaw, R. 2013IAUDS.181Q...1H
Hrt2013c Inf. Circ. 181, 1, 2013
 
 
DISCOVERER
 
 
idgroup discov author
1 B van den Bos, W.H.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17294-3831 B 342 1996 26 99 0.5 6.82 7.57 A2V D 172925.62-383101.0
17294-3831 B 342 2008 28 109 0.4 6.82 7.57 A2V D 172925.62-383101.0
17294-3831 B 342 2009 29 109 0.5 6.82 7.57 A2V O 172925.62-383101.0
17294-3831 B 342 2016 30 115 0.4 6.82 7.57 A2V O 172925.62-383101.0

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

 
 
WDS 17294-3831 B 342 (HD 158156) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17294-3831 B 342 (HD 158156) : MEASURES
 
 
No records found.

 
 
WDS 17294-3831 (HD 158156) : VIRTUAL EYEPIECE
 
 

17294-3831 B 342A mag 6.82 Sp A2V 17294-3831 B 342B sep 0.3 P.A. 121.30 mag 7.57 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 17294-3831 (HD 158156) : ALADIN DSS IMAGE @ 17h 29m 25.62s -38° 31' 01.0"
 
 
 
 
WDS 17294-3831 B 342 (HD 158156) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17294-3831 B 342 distance=0' 17293-3839 TOK 792 distance=8' 17303-3839 I 1325 distance=13' 17315-3838 ARY 123AB distance=25' 17315-3838 ARY 123AC distance=25' 17318-3833 RST1965 distance=28' 17313-3901 HWE 87 distance=38' 17263-3853 I 1319 distance=43' 17336-3800 B 913 distance=59' 17241-3849 KPP4038 distance=66' 17308-3726 B 912 distance=67' 17244-3759 RST3092 distance=68' 17352-3837 RST1973 distance=68' 17316-3725 TDT 395 distance=71' 17299-3942 RSS 445 distance=72' 17232-3821 RST1955 distance=75' 17254-3727 BRT1717 distance=80' 17227-3812 I 1317 distance=82' 17261-3718 RST3096 distance=83' 17334-3947 RST1968 distance=90' 17227-3748 B 908AB distance=91' 17227-3748 B 908AC distance=91' 17243-3722 RST3091 distance=93' 17228-3739 B 909 distance=94' 17335-3953 WG 209 distance=96' 17336-3706 TNG 1Aa,Ab (Shaula) distance=99' 17336-3706 SEE 334AB (Shaula) distance=99' 17336-3706 DUN 218AC (Shaula) distance=99' 17237-3948 RST1958 distance=102' 17232-3946 WG 206AB distance=104' 17232-3946 SHT 31AC distance=104' 17232-3946 SHT 31AD distance=104' 17289-3647 CHR 183 distance=105' 17375-3747 B 915AB distance=105' 17375-3747 COO 216AB,C distance=105' 17280-4016 KPP4040 distance=107' 17383-3807 KPP2059 distance=107' 17379-3752 I 247AB distance=107' 17379-3752 I 247AC distance=107' 17295-4019 I 1004 distance=108' 17229-3713 SEE 327 distance=110' 17286-3638 NSN 383 distance=114' 17385-3755 JSP 720 distance=115' 17255-3647 BRT1718 distance=115' 17324-3642 ARY 94 distance=115' 17247-3649 BRT1716 distance=117' 17208-3932 RST1951 distance=117' 17283-4032 WG 207AB distance=123' 17191-3849 WSI 60 distance=123' 17283-4032 WG 207BC distance=123' 17190-3849 HDS2447BC distance=124' 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 17294-3831 B 342 115 0.4
Show 17293-3839 TOK 792 307 1.6 8
Show 17303-3839 I 1325 77 3.2 13
Show 17315-3838 ARY 123 AB 168 9.1 25
Show 17315-3838 ARY 123 AC 166 43.9 25
Show 17318-3833 RST1965 357 0.5 28
Show 17313-3901 HWE 87 233 3.2 38
Show 17263-3853 I 1319 55 2.3 43
Show 17336-3800 B 913 57 1.1 59
Show 17241-3849 KPP4038 42 1.6 66
Show 17308-3726 B 912 199 0.3 67
Show 17244-3759 RST3092 64 0.3 68
Show 17352-3837 RST1973 116 3.7 68
Show 17316-3725 TDT 395 295 1.9 71
Show 17299-3942 RSS 445 300 9.3 72
Show 17232-3821 RST1955 51 0.4 75
Show 17254-3727 BRT1717 139 3.9 80
Show 17227-3812 I 1317 247 0.3 82
Show 17261-3718 RST3096 106 0.5 83
Show 17334-3947 RST1968 201 2.4 90
Show 17227-3748 B 908 AB 115 2.7 91
Show 17227-3748 B 908 AC 208 9.7 91
Show 17243-3722 RST3091 1 2.4 93
Show 17228-3739 B 909 72 2.9 94
Show 17335-3953 WG 209 140 4.4 96
Show Shaula 17336-3706 TNG 1 Aa,Ab 98 0.0 99
Show Shaula 17336-3706 SEE 334 AB 106 42.4 99
Show Shaula 17336-3706 DUN 218 AC 330 94.4 99
Show 17237-3948 RST1958 353 1.0 102
Show 17232-3946 WG 206 AB 147 4.8 104
Show 17232-3946 SHT 31 AC 265 13.1 104
Show 17232-3946 SHT 31 AD 292 23.9 104
Show 17289-3647 CHR 183 70 0.2 105
Show 17375-3747 B 915 AB 328 0.2 105
Show 17375-3747 COO 216 AB,C 194 13.9 105
Show 17280-4016 KPP4040 105 1.8 107
Show 17383-3807 KPP2059 299 16.5 107
Show 17379-3752 I 247 AB 109 0.3 107
Show 17379-3752 I 247 AC 334 0.2 107
Show 17295-4019 I 1004 256 3.7 108
Show 17229-3713 SEE 327 235 19.4 110
Show 17286-3638 NSN 383 16 1.6 114
Show 17385-3755 JSP 720 342 2.2 115
Show 17255-3647 BRT1718 73 2.4 115
Show 17324-3642 ARY 94 352 44.0 115
Show 17247-3649 BRT1716 321 3.1 117
Show 17208-3932 RST1951 81 0.9 117
Show 17283-4032 WG 207 AB 190 24.4 123
Show 17191-3849 WSI 60 334 1.4 123
Show 17283-4032 WG 207 BC 47 5.9 123
Show 17190-3849 HDS2447 BC 74 4.1 124

 
 
WDS 17294-3831 : COMPONENTS
 
 
  A
B pa=121.3°
sep=0.34"
 
 
17294-3831 A
 
 
Componente originario normalizzato AB Name HD 158156 Coord arcsec 2000 172925.62-383101.0 Mag 6.82
Spectral class A2V (white) PmRA 21.00 PmDE 7.0 SAO 208870
HIP 85589 Tycho2 7883-00469-1 HD 158156 HR 6503
GC 23673 CD CD-3811927 CP CP-38 6862
Tycho2
Tycho2 7883-00469-1 Pflag RAmdeg 262.35678669 DEmdeg -38.51693720
PmRA 20.9 PmDE 6.5 E RAmdeg 4 E DEmdeg 5
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.40 EpDEm 1990.91
Num 13 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 0.9
Q pmDE 1.1 BTmag 6.527 E BTmag 0.015 VTmag 6.415
E VTmag 0.010 Prox 999 TYC T HIP 85589
CCDM AB RAdeg 262.35672500 DEdeg -38.51695278 EpRA 1990 1.72
EpDE 1990 1.37 E RAdeg 3.9 E DEdeg 4.6 Posflg P
Corr 0.1
SAO
SAO 208870 DelFlag RA1950 PmRA1950 0.0027
DE1950 PmDE1950 0.019 Vmag 6.4 SpType A2
Double code Source 70 CatNum 23673 DM CD-3811927
DMcomp BDsup HD 158156 M HD 0
GC 23673 RA1950rad 4.56397401 DE1950rad -0.67156294 PmRA2000 0.0027
PmDE2000 0.02
Hipparcos
Catalog H HIP 85589 Proxy H RAhms 17 29 25.60
DEdms -38 31 01.0 Vmag 6.38 VarFlag R Vmag G
RAdeg 262.357 DEdeg -38.5169 AstroRef A Plx 9.83
CCDM 17294-3831 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 100 Rho 0.503 HD 158156 BD
CD CD-3811927 CP CP-38 6862 Dm number -3811927 VIred 0.1
SpType A1V R SpType Coord arcsec 2000 172925.60-383101.0
Hipparcos 2
HIP 85589 Sn 15 So 3 Nc 2
RArad 4.5789874624 DErad -0.6722474856 Plx 8.51 PmRA 24.27
PmDE 8.81 E RArad 0.73 E DErad 0.47 E Plx 0.79
E pmRA 0.9 E pmDE 0.57 Hpmag 6.4081 E Hpmag 0.001
SHp 0.007 VA 0 BV 0.091 E BV 0.006
VI 0.1
CCDM
Ccdm 17294-3831 RComp Comp A Note1
Note2 Discov num DRAs 1.65 DDEs -1.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.1 Sp A2 PmNote *
PmRA 29 PmDE 5 Dm number -3811927 Cat1 CD
Name2 208870 Cat2 SAO HD 158156 M HD
ADS BDS M ADS BDS N IDS IDS 17226S3826A
HIC 85589
 
 
17294-3831 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 172925.64-383101.2 Mag 7.57 PmRA 21.00
PmDE 7.0 Calc delta mag 0.75 Calc coord yes
CCDM
Ccdm 17294-3831 RComp Comp B Note1
Note2 Discov num B 342 DRAs DDEs
R dRAs Year 1959 Theta 085 Rho 0.4
Obs 14 Vmag 7.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 17226S3826B
HIC 85589