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Doubles in session


Current system
18356+0456
STF 2342 AC


Nearby doubles
8' : 18360+0452
J 2138

12' : 18357+0507
GRV 234

13' : 18360+0506
A 354

14' : 18365+0457
HJ 864

23' : 18363+0516
A 355

33' : 18327+0504
BAL3014AB

37' : 18379+0451
LDS5241

40' : 18341+0530
J 1833

41' : 18348+0534
CRT 28AB

42' : 18337+0426
GWP2786

43' : 18379+0432
BAL2932

44' : 18385+0504
BAL2933

46' : 18387+0451
STT 360

49' : 18388+0446
RAO 395

55' : 18344+0405
TDT 940

55' : 18322+0514
GWP2781

59' : 18329+0539
SLE 495

61' : 18382+0410
TDT 968

62' : 18349+0556
TDT 945AB

64' : 18350+0559
GWP2788

65' : 18391+0535
GWP2789AB

73' : 18379+0352
KPP 421

77' : 18342+0341
ABT9001

78' : 18307+0431
STTA170

80' : 18314+0545
TDT 925

83' : 18334+0341
HJ 861



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 18356+0456 : COMPONENTS
 
 
  A B C
B pa=324.6°
sep=13.69"
 
C pa=0.4°
sep=33.63"
pa=20.0°
sep=23.91"
 
D pa=323.0°
sep=35.20"
pa=322.0°
sep=21.52"
pa=255.6°
sep=22.12"
 
 
18356+0456 A
 
 
Var name FR Ser Coord arcsec 2000 183536.48+045609.8 Mag 6.46 Spectral class A1V (white)
PmRA 30.00 PmDE -30.0 SAO 123673 HIP 91142
Tycho2 0454-01578-1 HD 171586 GC 25401 BD BD+04 3801
Tycho2
Tycho2 0454-01578-1 Pflag RAmdeg 278.90205240 DEmdeg 4.93598924
PmRA 29.4 PmDE -29.3 E RAmdeg 4 E DEmdeg 4
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.64 EpDEm 1991.52
Num 13 Q RAmdeg 0.2 Q DEmdeg 0.8 Q pmRA 0.3
Q pmDE 0.7 BTmag 6.571 E BTmag 0.015 VTmag 6.465
E VTmag 0.010 Prox 327 TYC T HIP 91142
CCDM RAdeg 278.90198528 DEdeg 4.93605694 EpRA 1990 1.82
EpDE 1990 1.70 E RAdeg 3.6 E DEdeg 3.9 Posflg
Corr -0.4
SAO
SAO 123673 DelFlag RA1950 PmRA1950 0.0016
DE1950 PmDE1950 -0.035 Vmag 6.7 SpType A0
Double code Source 70 CatNum 25401 DM BD+04 3801
DMcomp BDsup HD 171586 M HD 0
GC 25401 RA1950rad 4.85697967 DE1950rad 0.08542824 PmRA2000 0.0018
PmDE2000 -0.036
Hipparcos
Catalog H HIP 91142 Proxy RAhms 18 35 36.48
DEdms +04 56 09.8 Vmag 6.47 VarFlag R Vmag G
RAdeg 278.902 DEdeg 4.93606 AstroRef Plx 9.74
CCDM 18356+0456 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 171586 BD BD+04 3801
CD CP Dm number +04 3801 VIred 0.09
SpType A2pvar R SpType Coord arcsec 2000 183536.48+045609.8
Hipparcos 2
HIP 91142 Sn 5 So 0 Nc 1
RArad 4.8677578768 DErad 0.0861505193 Plx 9.07 PmRA 29.73
PmDE -29.77 E RArad 0.36 E DErad 0.25 E Plx 0.48
E pmRA 0.4 E pmDE 0.36 Hpmag 6.4959 E Hpmag 0.0008
SHp 0.009 VA 0 BV 0.075 E BV 0.004
VI 0.09
CCDM
Ccdm 18356+0456 RComp Comp A Note1
Note2 Discov num DRAs 0.47 DDEs 9.7
R dRAs 10 Year Theta Rho
Obs 3 Vmag 6.7 Sp A0 PmNote *
PmRA 23 PmDE -21 Dm number +04 3801 Cat1 BD
Name2 +04 2358 Cat2 AGK2/3 HD 171586 M HD
ADS BDS A11477 M ADS BDS N IDS IDS 18307N0451A
HIC 91142
 
 
18356+0456 B
 
 
Coord arcsec 2000 183535.95+045621.0 Mag 12.5 PmRA -174.00 PmDE 274.0
Calc delta mag 6.04 Calc coord yes
CCDM
Ccdm 18356+0456 RComp Comp B Note1
Note2 Discov num BU 643 DRAs DDEs
R dRAs Year 1924 Theta 330 Rho 10.5
Obs 9 Vmag 12.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11477 M ADS BDS N IDS IDS 18307N0451B
HIC
 
 
18356+0456 C
 
 
Coord arcsec 2000 183536.50+045643.4 Mag 9.63 PmRA 5.00 PmDE 12.0
Calc delta mag 3.17 Calc coord yes
CCDM
Ccdm 18356+0456 RComp Comp C Note1
Note2 Discov num STF2342 DRAs 0.45 DDEs 41.6
R dRAs 10 Year 1930 Theta 005 Rho 30.5
Obs 20 Vmag 9.3 Sp PmNote *
PmRA -16 PmDE -4 Dm number +04 3802 Cat1 BD
Name2 +04 2359 Cat2 AGK2/3 HD M HD
ADS BDS A11477 M ADS BDS N IDS IDS 18307N0451C
HIC
 
 
18356+0456 D
 
 
Coord arcsec 2000 183535.06+045637.9 Mag 13.9 Calc delta mag 7.44 Calc coord yes