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Doubles in session


Current system
17141-0824
BAR 7
HD 155802


Nearby doubles
7' : 17137-0825
TSN 181

9' : 17137-0831
WRH 8

23' : 17156-0825
BRT 467

54' : 17136-0917
BU 1247AB

58' : 17174-0752
STF2144

75' : 17153-0712
TOK 608

88' : 17157-0949
A 2592AB

91' : 17200-0801
ENG 60AB

100' : 17115-0956
HDS2428

106' : 17208-0902
A 28

116' : 17067-0749
RST3965

116' : 17156-1018
BU 957

120' : 17086-0658
KPP4026

126' : 17207-0706
A 2593AB

126' : 17102-0634
GWP2694

126' : 17057-0839
BRT 466

130' : 17080-0957
RST3966

143' : 17098-1031
TOK 414

147' : 17200-0626
STF2149

150' : 17226-0704
KPP4036

152' : 17102-1044
GWP2695

152' : 17054-0706
STF3109

153' : 17162-1054
LSC 72

155' : 17231-0706
TOK 312

157' : 17240-0921
TOK 179AB

167' : 17085-1049
UC 3295



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.

17141-0824 BAR 7 (HD 155802)

 
 
17h 14m 08.07s -08° 24' 13.8" P.A. 44.00 sep 1.5 mag 8.64,11.69 Sp K3V dist. 30.01 pc (97.89 l.y.)
 
 
Coord 2000 17141-0824 Discov num BAR   7 Comp Coord arcsec 2000 17 14 08.07 -08 24 13.8
Date first 1891 Date last 2018 Obs 18
Pa first 154 Pa last 43.7 P.A. Now (θ) 43.7°
Sep first 2.2 Sep last 1.495 Sep. Now (ρ) 1.495"
Mag pri 8.64 Mag sec 11.69 delta mag (ΔM) 3.05 Spectral class K3V (yellow-orange)
Pri motion ra -108 Sec motion ra -102
Pri motion dec +071 Sec motion dec +070
Notes O (Orbital solution)
rPM=0.047 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 155802 Constellation Ophiuchus SAO 141567 HIP 84303
Tycho2 5645-00112-1 Gaia DR2 4359814876901570688 HD 155802 ADS 10404
BD BD-08 4400 Distance 30.01 Distance ly 97.89
 
 
ORBITAL ELEMENTS
 
 
Period (P)390y Periastron (T)2081.4y Semi-major axis (a)1.878a
Eccentricity (e)0.204 Inclination (i)140.4° Longitude of periastron (ω)206.9°
Node (Ω)177.8° Notes ReferenceTok2021f
Equinox Last observation2018 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 64.6 1.478
2001 63.5 1.478
2002 62.4 1.477
2003 61.2 1.477
2004 60.1 1.478
2005 59.0 1.478
2006 57.9 1.478
2007 56.7 1.479
2008 55.6 1.480
2009 54.5 1.481
2010 53.4 1.482
2011 52.3 1.483
2012 51.1 1.484
2013 50.0 1.486
2014 48.9 1.487
2015 47.8 1.489
2016 46.7 1.490
2017 45.6 1.492
2018 44.5 1.494
2019 43.4 1.496
2020 42.3 1.498
2021 41.2 1.500
2022 40.1 1.502
2023 39.0 1.504
2024 37.9 1.506
2025 36.9 1.508
2026 35.8 1.510
2027 34.7 1.512
2028 33.6 1.514
2029 32.6 1.517
2030 31.5 1.519


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


 
  


wds17141-0824c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 17141-0824 BAR 7 (HD 155802) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Tok2021f orb - Tokovinin, A. 2021IAUDS.204....1T
Tok2021f Inf. Circ. 204, 1, 2021
 
 
DISCOVERER
 
 
idgroup discov author
1 BAR Barnard, E.E.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17141-0824 BAR 7 1997 12 78 1.6 8.64 11.69 K3V O 171408.07-082413.8
17141-0824 BAR 7 2009 13 54 1.5 8.64 11.69 K3V O 171408.07-082413.8
17141-0824 BAR 7 2010 14 52 1.4 8.64 11.69 K3V O 171408.07-082413.8
17141-0824 BAR 7 2013 15 50 1.5 8.64 11.69 K3V O 171408.07-082413.8
17141-0824 BAR 7 2018 16 44 1.5 8.64 11.69 K3V O 171408.07-082413.8

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

 
 
WDS 17141-0824 BAR 7 (HD 155802) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17141-0824 BAR 7 (HD 155802) : MEASURES
 
 
No records found.

 
 
WDS 17141-0824 (HD 155802) : VIRTUAL EYEPIECE
 
 

17141-0824 BAR 7A mag 8.64 Sp K3V 17141-0824 BAR 7B sep 1.5 P.A. 43.40 mag 11.69 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 17141-0824 (HD 155802) : ALADIN DSS IMAGE @ 17h 14m 08.07s -08° 24' 13.8"
 
 
 
 
WDS 17141-0824 BAR 7 (HD 155802) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17141-0824 BAR 7 distance=1' 17137-0825 TSN 181 distance=7' 17137-0831 WRH 8 distance=9' 17156-0825 BRT 467 distance=23' 17136-0917 BU 1247AB distance=54' 17174-0752 STF2144 distance=58' 17153-0712 TOK 608 distance=75' 17157-0949 TOK 53Ba,Bb distance=88' 17157-0949 A 2592AB distance=88' 17200-0801 CHR 151Aa,Ab distance=91' 17200-0801 ENG 60AB distance=91' 17115-0956 HDS2428 distance=100' 17208-0902 A 28 distance=106' 17067-0749 RST3965 distance=116' 17156-1018 BU 957 distance=116' 17086-0658 KPP4026 distance=120' 17207-0706 A 2593AB distance=126' 17207-0706 TOK 178AC distance=126' 17102-0634 GWP2694 distance=126' 17057-0839 BRT 466 distance=126' 17080-0957 RST3966 distance=130' 17098-1031 TOK 414 distance=143' 17200-0626 STF2149 distance=147' 17226-0704 KPP4036 distance=150' 17102-1044 GWP2695 distance=152' 17054-0706 STF3109 distance=152' 17162-1054 LSC 72 distance=153' 17231-0706 TOK 312 distance=155' 17240-0921 RST3972Aa,Ab distance=157' 17240-0921 TOK 179AB distance=157' 17085-1049 UC 3295 distance=167' 17250-0913 GWP2710AB distance=169' 17038-0938 UC 3281 distance=170' 17254-0850 HDS2460 distance=170' 17209-1042 RST3971 distance=170' 17200-0555 TOK 311 distance=173' 17250-0931 FOX 201AB distance=175' 17250-0931 FOX 201AC distance=175' 17029-0728 J 2504 distance=177' 17074-0558 BUG 5 distance=178' 17192-1107 REI 1AB distance=180' 17192-1107 KPP4389AC distance=180' 17260-0745 RST3975AB distance=181' 17260-0745 GII 246Aa,Ab distance=181' 17165-0524 GWP2700 distance=185' 17123-1131 YMG 86 distance=189' 17217-1103 HU 173 distance=195' 17199-1121 STF2148 distance=197' 17252-0634 JNN 114 distance=198' 17129-0508 SCE 1 distance=198' 17084-0518 RST4566 distance=206' 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 17141-0824 BAR 7 44 1.5 1
Show 17137-0825 TSN 181 148 0.0 7
Show 17137-0831 WRH 8 340 10.9 9
Show 17156-0825 BRT 467 194 4.4 23
Show 17136-0917 BU 1247 AB 342 1.5 54
Show 17174-0752 STF2144 178 25.9 58
Show 17153-0712 TOK 608 5 368.1 75
Show 17157-0949 TOK 53 Ba,Bb 279 0.0 88
Show 17157-0949 A 2592 AB 70 0.2 88
Show 17200-0801 CHR 151 Aa,Ab 219 0.3 91
Show 17200-0801 ENG 60 AB 232 89.8 91
Show 17115-0956 HDS2428 15 0.3 100
Show 17208-0902 A 28 36 2.0 106
Show 17067-0749 RST3965 299 1.8 116
Show 17156-1018 BU 957 56 0.1 116
Show 17086-0658 KPP4026 194 1.4 120
Show 17207-0706 A 2593 AB 329 0.3 126
Show 17207-0706 TOK 178 AC 109 10.2 126
Show 17102-0634 GWP2694 165 24.1 126
Show 17057-0839 BRT 466 240 3.4 126
Show 17080-0957 RST3966 111 0.5 130
Show 17098-1031 TOK 414 71 0.0 143
Show 17200-0626 STF2149 23 7.3 147
Show 17226-0704 KPP4036 85 1.7 150
Show 17102-1044 GWP2695 357 8.3 152
Show 17054-0706 STF3109 296 5.0 152
Show 17162-1054 LSC 72 153 1.1 153
Show 17231-0706 TOK 312 167 119.8 155
Show 17240-0921 RST3972 Aa,Ab 114 0.1 157
Show 17240-0921 TOK 179 AB 298 18.9 157
Show 17085-1049 UC 3295 43 31.0 167
Show 17250-0913 GWP2710 AB 194 58.5 169
Show 17038-0938 UC 3281 345 4.1 170
Show 17254-0850 HDS2460 341 0.7 170
Show 17209-1042 RST3971 80 8.6 170
Show 17200-0555 TOK 311 350 120.2 173
Show 17250-0931 FOX 201 AB 124 6.0 175
Show 17250-0931 FOX 201 AC 324 7.2 175
Show 17029-0728 J 2504 21 3.7 177
Show 17074-0558 BUG 5 142 1.0 178
Show 17192-1107 REI 1 AB 352 8.7 180
Show 17192-1107 KPP4389 AC 142 48.8 180
Show 17260-0745 RST3975 AB 28 1.0 181
Show 17260-0745 GII 246 Aa,Ab 166 0.2 181
Show 17165-0524 GWP2700 268 6.7 185
Show 17123-1131 YMG 86 78 0.1 189
Show 17217-1103 HU 173 345 0.6 195
Show 17199-1121 STF2148 220 5.6 197
Show 17252-0634 JNN 114 284 0.4 198
Show 17129-0508 SCE 1 351 5.9 198
Show 17084-0518 RST4566 21 0.3 206

 
 
WDS 17141-0824 : COMPONENTS
 
 
  A
B pa=43.4°
sep=1.49"
 
 
17141-0824 A
 
 
Componente originario normalizzato AB Name HD 155802 Coord arcsec 2000 171408.07-082413.8 Mag 8.64
Spectral class K3V (yellow-orange) PmRA -108.00 PmDE 71.0 SAO 141567
HIP 84303 Tycho2 5645-00112-1 HD 155802 ADS 10404
BD BD-08 4400
Tycho2
Tycho2 5645-00112-1 Pflag RAmdeg 258.53362129 DEmdeg -8.40384285
PmRA -107.9 PmDE 70.6 E RAmdeg 10 E DEmdeg 12
E pmRA 1.3 E pmDE 1.3 EpRAm 1989.91 EpDEm 1988.73
Num 9 Q RAmdeg 0.6 Q DEmdeg 1.2 Q pmRA 0.6
Q pmDE 1.2 BTmag 9.688 E BTmag 0.027 VTmag 8.635
E VTmag 0.017 Prox 15 TYC T HIP 84303
CCDM A RAdeg 258.53387417 DEdeg -8.40401389 EpRA 1990 1.64
EpDE 1990 1.33 E RAdeg 9.5 E DEdeg 12.8 Posflg
Corr 0.2
SAO
SAO 141567 DelFlag RA1950 PmRA1950 -0.0065
DE1950 PmDE1950 0.079 Vmag 7.8 SpType K0
Double code Source 26 CatNum 5867 DM BD-08 4400
DMcomp BDsup HD 155802 M HD 0
GC RA1950rad 4.50040629 DE1950rad -0.14569695 PmRA2000 -0.0063
PmDE2000 0.081
Hipparcos
Catalog H HIP 84303 Proxy H RAhms 17 14 08.13
DEdms -08 24 14.4 Vmag 8.49 VarFlag R Vmag G
RAdeg 258.534 DEdeg -8.40401 AstroRef A Plx 34.27
CCDM 17141-0824 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 75 Rho 1.493 HD 155802 BD BD-08 4400
CD CP Dm number -08 4400 VIred 0.97
SpType K3V R SpType Coord arcsec 2000 171408.13-082414.4
Hipparcos 2
HIP 84303 Sn 15 So 3 Nc 2
RArad 4.5122674485 DErad -0.1466776972 Plx 33.32 PmRA -100.2
PmDE 70.24 E RArad 1.03 E DErad 0.63 E Plx 1.19
E pmRA 1.47 E pmDE 0.84 Hpmag 8.6155 E Hpmag 0.0023
SHp 0.02 VA 0 BV 0.925 E BV 0.015
VI 0.97
CCDM
Ccdm 17141-0824 RComp Comp A Note1
Note2 Discov num DRAs 2.13 DDEs -13.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.0 Sp K0 PmNote *
PmRA -96 PmDE 79 Dm number -08 4400 Cat1 BD
Name2 141567 Cat2 SAO HD 155802 M HD
ADS BDS A10404 M ADS BDS N IDS IDS 17087S0817A
HIC 84303
 
 
17141-0824 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 171408.14-082412.7 Mag 11.69 PmRA -102.00
PmDE 70.0 Calc delta mag 3.05 Calc coord yes
CCDM
Ccdm 17141-0824 RComp Comp B Note1
Note2 Discov num BAR 7 DRAs DDEs
R dRAs Year 1923 Theta 145 Rho 1.8
Obs 3 Vmag 11.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10404 M ADS BDS N IDS IDS 17087S0817B
HIC 84303