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Doubles in session


Current system
18250+2724
HO 84 DE


Nearby doubles
22' : 18233+2731
HO 83

23' : 18265+2721
BU 264

31' : 18251+2654
AG 361

36' : 18259+2652
UC 3578

37' : 18230+2742
HJ 1322

38' : 18257+2649
DAM1237

42' : 18253+2805
HO 85AB

43' : 18271+2754
TDS 921

45' : 18265+2645
TDT 870

46' : 18280+2708
ES 475

46' : 18238+2808
GRV1261

47' : 18257+2639
COU 815

50' : 18235+2810
JOD 15

51' : 18280+2655
TDT 893

54' : 18249+2817
RAO 391

54' : 18208+2732
BU 640

55' : 18242+2818
A 244

62' : 18220+2812
UC 3562

62' : 18223+2633
TDT 819

63' : 18267+2627
BU 1326AB

65' : 18257+2828
TDT 858

74' : 18270+2832
MLB 648

74' : 18296+2647
A 245

75' : 18212+2820
STF2312

75' : 18224+2617
NSN 704

81' : 18265+2842
HJ 1324



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.
 
 
WDS 18250+2724 : COMPONENTS
 
 
  A B C D
B pa=119.4°
sep=0.53"
 
C pa=77.1°
sep=40.06"
pa=76.6°
sep=39.67"
 
D pa=290.0°
sep=117.46"
pa=290.0°
sep=117.98"
pa=281.8°
sep=152.65"
 
E pa=291.1°
sep=120.95"
pa=291.1°
sep=121.48"
pa=282.8°
sep=155.77"
pa=325.0°
sep=4.24"
 
 
18250+2724 A
 
 
Name HD 169718 Coord arcsec 2000 182458.46+272341.3 Mag 6.57 Spectral class A0V (white)
PmRA 3.00 PmDE -12.0 SAO 86019 HIP 90256
Tycho2 2101-02501-1 HD 169718 HR 6904 GC 25147
BD BD+27 3016
Tycho2
Tycho2 2101-02501-1 Pflag RAmdeg 276.24362667 DEmdeg 27.39476954
PmRA 2.8 PmDE -11.5 E RAmdeg 4 E DEmdeg 4
E pmRA 1.4 E pmDE 1.3 EpRAm 1991.43 EpDEm 1991.49
Num 9 Q RAmdeg 0.8 Q DEmdeg 1.5 Q pmRA 0.6
Q pmDE 1.4 BTmag 6.400 E BTmag 0.014 VTmag 6.339
E VTmag 0.010 Prox 999 TYC T HIP 90256
CCDM AB RAdeg 276.24361917 DEdeg 27.39479611 EpRA 1990 1.55
EpDE 1990 1.64 E RAdeg 3.5 E DEdeg 3.5 Posflg P
Corr 0.1
SAO
SAO 86019 DelFlag RA1950 PmRA1950 0
DE1950 PmDE1950 0.009 Vmag 6.2 SpType A0
Double code Source 70 CatNum 25147 DM BD+27 3016
DMcomp BDsup HD 169718 M HD 0
GC 25147 RA1950rad 4.81267848 DE1950rad 0.47762895 PmRA2000 0.0002
PmDE2000 0.008
Hipparcos
Catalog H HIP 90256 Proxy H RAhms 18 24 58.46
DEdms +27 23 41.3 Vmag 6.27 VarFlag R Vmag H
RAdeg 276.244 DEdeg 27.3948 AstroRef A Plx 8.41
CCDM 18250+2724 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 127 Rho 0.653 HD 169718 BD BD+27 3016
CD CP Dm number +27 3016 VIred 0.06
SpType A2Vn R SpType Coord arcsec 2000 182458.46+272341.3
Hipparcos 2
HIP 90256 Sn 15 So 3 Nc 2
RArad 4.8213600866 DErad 0.4781297772 Plx 8.51 PmRA 1.77
PmDE -15.19 E RArad 0.43 E DErad 0.43 E Plx 0.62
E pmRA 0.63 E pmDE 0.54 Hpmag 6.2919 E Hpmag 0.0006
SHp 0.008 VA 0 BV 0.053 E BV 0.005
VI 0.07
CCDM
Ccdm 18250+2724 RComp Comp A Note1
Note2 Discov num DRAs -1.50 DDEs -20.0
R dRAs 10 Year Theta Rho
Obs 3 Vmag 6.6 Sp A0 PmNote *
PmRA 8 PmDE -28 Dm number +27 3016 Cat1 BD
Name2 +27 1755 Cat2 AGK2/3 HD 169718 M HD
ADS BDS A11334 M ADS BDS N IDS IDS 18210N2720A
HIC 90256
 
 
18250+2724 B
 
 
Coord arcsec 2000 182458.49+272341.0 Mag 7.77 Spectral class A4V (white) PmRA 3.00
PmDE -12.0 Calc delta mag 1.2 Calc coord yes
CCDM
Ccdm 18250+2724 RComp Comp B Note1 *
Note2 Discov num STF2315 DRAs DDEs
R dRAs Year 1830 Theta Rho
Obs 99 Vmag 7.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11334 M ADS BDS N IDS IDS 18210N2720B
HIC 90256
 
 
18250+2724 C
 
 
Coord arcsec 2000 182501.39+272350.2 Mag 13.9 PmRA 12.00 PmDE 3.0
Calc delta mag 7.33 Calc coord yes
CCDM
Ccdm 18250+2724 RComp Comp C Note1
Note2 Discov num STF2315 DRAs DDEs
R dRAs Year 1934 Theta 080 Rho 44.9
Obs 2 Vmag 13.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11334 M ADS BDS N N IDS IDS 18210N2720C
HIC
 
 
18250+2724 D
 
 
Coord arcsec 2000 182450.17+272421.4 Coord calc 182450.17+272421.4 Mag 11.4 PmRA 6.00
PmDE -19.0 Calc delta mag 4.83
 
 
18250+2724 E
 
 
Coord arcsec 2000 182449.99+272424.9 Mag 13.4 Calc delta mag 6.83 Calc coord yes