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Current system
18431-7804
HDS 2650 AB
HD 171043


Nearby doubles
22' : 18497-7759
RST3189

45' : 18548-7740
TOB 348

61' : 18421-7704
LDS 645

62' : 19013-7741
TDT1184

62' : 18243-7746
TDT 840

66' : 19016-7838
RST3201

67' : 18344-7906
UC 3614

70' : 19028-7840
LDS 657

75' : 18538-7911
RST3192

79' : 18574-7701
UC 3739

88' : 18392-7930
KPP2188

94' : 18302-7641
HDS2621

118' : 19012-7623
TDS 958

146' : 18431-7539
KPP1905

147' : 18422-7538
KPP 650

148' : 18351-7539
JSP 775

148' : 18558-7543
UC 3727

149' : 19028-7551
KIR 21

172' : 18582-7521
I 640

199' : 18297-7451
KPP 717

205' : 18590-7447
HDS2692

224' : 18543-7423
LDS 654

239' : 18577-7412
HJ 5061

249' : 18329-7358
HDS2631

251' : 18307-7357
TDT 919

262' : 18545-8224
KPP4128



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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18431-7804 HDS 2650 AB (HD 171043)

 
 
18h 43m 03.23s -78° 03' 58.5" P.A. 171.00 sep 0.6 mag 6.94,9.21 Sp F5IV/V dist. 154.8 pc (504.96 l.y.)
 
 
Coord 2000 18431-7804 Discov num HDS2650 Comp AB Coord arcsec 2000 18 43 03.23 -78 03 58.5
Date first 1991 Date last 2018 Obs 3
Pa first 165 Pa last 170.6 P.A. Now (θ) 170.6°
Sep first 0.5 Sep last 0.606 Sep. Now (ρ) 0.606"
Mag pri 6.94 Mag sec 9.21 delta mag (ΔM) 2.27 Spectral class F5IV/V (yellow-white)
Pri motion ra +022 Sec motion ra +022
Pri motion dec +001 Sec motion dec +001
Notes W
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 171043 Constellation Octans SAO 257615 HIP 91795
Tycho2 9462-00928-1 HD 171043 GC 25468 CP CP-78 1180
Distance 154.8 Distance ly 504.96
 
 
WDS 18431-7804 HDS 2650 AB (HD 171043) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18431-7804 HDS2650 AB 2018 3 171 0.6 6.94 9.21 F5IV/V W 184303.23-780358.5

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

 
 
WDS 18431-7804 HDS 2650 AB (HD 171043) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18431-7804 HDS 2650 AB (HD 171043) : MEASURES
 
 
No records found.

 
 
WDS 18431-7804 (HD 171043) : VIRTUAL EYEPIECE
 
 

18431-7804 HDS2650A mag 6.94 Sp F5IV/V 18431-7804 HDS2650B sep 0.6 P.A. 178.00 mag 9.21 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18431-7804 (HD 171043) : ALADIN DSS IMAGE @ 18h 43m 03.23s -78° 03' 58.5"
 
 
 
 
WDS 18431-7804 HDS 2650 AB (HD 171043) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18431-7804 HDS2650AB distance=1' 18497-7759 RST3189 distance=22' 18548-7740 TOB 348 distance=45' 18421-7704 LDS 645 distance=61' 19013-7741 TDT1184 distance=62' 18243-7746 TDT 840 distance=62' 19016-7838 RST3201 distance=66' 18344-7906 UC 3614 distance=67' 19028-7840 LDS 657 distance=70' 18538-7911 RST3192 distance=75' 18574-7701 UC 3739 distance=79' 18392-7930 KPP2188 distance=88' 18302-7641 HDS2621 distance=94' 19012-7623 TDS 958 distance=118' 18431-7539 KPP1905 distance=146' 18422-7538 KPP 650 distance=147' 18351-7539 JSP 775 distance=148' 18558-7543 UC 3727 distance=148' 19028-7551 KIR 21 distance=149' 18582-7521 I 640 distance=172' 18297-7451 KPP 717 distance=199' 18590-7447 HDS2692 distance=205' 18543-7423 LDS 654 distance=224' 18577-7412 HJ 5061 distance=239' 18329-7358 HDS2631 distance=249' 18307-7357 TDT 919 distance=251' 18545-8224 KPP4128 distance=262' 18487-8240 TDT1065 distance=276' 18509-7329 KPP1085 distance=277' 18492-7321 B 2459 distance=282' 18572-7325 HEI 264 distance=285' 19016-7325 UC 3766 distance=287' 18264-7324 TDT 869 distance=287' 18595-8253 RST3191 distance=293' 18373-7308 B 2452 distance=297' 18232-7310 LDS 634 distance=303' 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 18431-7804 HDS2650 AB 171 0.6 1
Show 18497-7759 RST3189 210 1.2 22
Show 18548-7740 TOB 348 328 31.7 45
Show 18421-7704 LDS 645 231 68.2 61
Show 19013-7741 TDT1184 9 4.7 62
Show 18243-7746 TDT 840 11 0.6 62
Show 19016-7838 RST3201 276 2.9 66
Show 18344-7906 UC 3614 132 11.7 67
Show 19028-7840 LDS 657 131 76.7 70
Show 18538-7911 RST3192 89 2.6 75
Show 18574-7701 UC 3739 216 11.1 79
Show 18392-7930 KPP2188 87 18.0 88
Show 18302-7641 HDS2621 316 0.3 94
Show 19012-7623 TDS 958 161 1.6 118
Show 18431-7539 KPP1905 140 15.0 146
Show 18422-7538 KPP 650 11 5.9 147
Show 18351-7539 JSP 775 153 1.8 148
Show 18558-7543 UC 3727 330 52.6 148
Show 19028-7551 KIR 21 129 20.3 149
Show 18582-7521 I 640 318 2.7 172
Show 18297-7451 KPP 717 120 6.3 199
Show 18590-7447 HDS2692 141 0.6 205
Show 18543-7423 LDS 654 146 6.6 224
Show 18577-7412 HJ 5061 285 6.1 239
Show 18329-7358 HDS2631 81 0.6 249
Show 18307-7357 TDT 919 189 0.6 251
Show 18545-8224 KPP4128 123 1.8 262
Show 18487-8240 TDT1065 285 0.6 276
Show 18509-7329 KPP1085 102 8.6 277
Show 18492-7321 B 2459 37 2.9 282
Show 18572-7325 HEI 264 113 1.0 285
Show 19016-7325 UC 3766 75 56.8 287
Show 18264-7324 TDT 869 183 1.8 287
Show 18595-8253 RST3191 293 2.9 293
Show 18373-7308 B 2452 60 3.0 297
Show 18232-7310 LDS 634 126 54.6 303

 
 
WDS 18431-7804 : COMPONENTS
 
 
  A
B pa=178.0°
sep=0.60"
 
 
18431-7804 A
 
 
Name HD 171043 Coord arcsec 2000 184303.23-780358.5 Mag 6.94 Spectral class F5IV/V (yellow-white)
PmRA 22.00 PmDE 1.0 SAO 257615 HIP 91795
Tycho2 9462-00928-1 HD 171043 GC 25468 CP CP-78 1180
Tycho2
Tycho2 9462-00928-1 Pflag RAmdeg 280.76346121 DEmdeg -78.06626900
PmRA 21.6 PmDE 0.5 E RAmdeg 4 E DEmdeg 4
E pmRA 1.4 E pmDE 1.3 EpRAm 1991.39 EpDEm 1991.48
Num 12 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 1.1
Q pmDE 0.9 BTmag 7.313 E BTmag 0.015 VTmag 6.830
E VTmag 0.010 Prox 999 TYC T HIP 91795
CCDM AB RAdeg 280.76321861 DEdeg -78.06627028 EpRA 1990 1.66
EpDE 1990 1.74 E RAdeg 3.7 E DEdeg 3.6 Posflg P
Corr 0.1
SAO
SAO 257615 DelFlag RA1950 PmRA1950 0.0091
DE1950 PmDE1950 0.02 Vmag 6.8 SpType F5
Double code Source 70 CatNum 25468 DM CP-78 1180
DMcomp BDsup HD 171043 M HD 0
GC 25468 RA1950rad 4.86634254 DE1950rad -1.3633377 PmRA2000 0.0059
PmDE2000 0.016
Hipparcos
Catalog H HIP 91795 Proxy H RAhms 18 43 03.17
DEdms -78 03 58.5 Vmag 6.77 VarFlag R Vmag H
RAdeg 280.763 DEdeg -78.0663 AstroRef A Plx 6.78
CCDM 18431-7804 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 165 Rho 0.491 HD 171043 BD
CD CP CP-78 1180 Dm number -78 1180 VIred 0.54
SpType F5IV/V R SpType Coord arcsec 2000 184303.17-780358.5
Hipparcos 2
HIP 91795 Sn 15 So 3 Nc 2
RArad 4.9002423213 DErad -1.3625133165 Plx 6.46 PmRA 22.4
PmDE 1.39 E RArad 0.33 E DErad 0.43 E Plx 0.52
E pmRA 0.35 E pmDE 0.48 Hpmag 6.8763 E Hpmag 0.0006
SHp 0.01 VA 0 BV 0.458 E BV 0.005
VI 0.53
CCDM
Ccdm 18431-7804 RComp Comp A Note1
Note2 Discov num DRAs -2.77 DDEs 1.5
R dRAs 82 Year Theta Rho
Obs 2 Vmag 7.0 Sp F5 PmNote *
PmRA 22 PmDE 2 Dm number -78 1180 Cat1 CPD
Name2 257615 Cat2 SAO HD 171043 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 91795
 
 
18431-7804 B
 
 
Coord arcsec 2000 184303.24-780359.1 Mag 9.21 PmRA 22.00 PmDE 1.0
Calc delta mag 2.27 Calc coord yes
CCDM
Ccdm 18431-7804 RComp Comp B Note1
Note2 Discov num HDS DRAs -2.73 DDEs 1.0
R dRAs 82 Year 1991 Theta 165 Rho 0.5
Obs 1 Vmag 9.8 Sp PmNote *
PmRA 22 PmDE 2 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 91795