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Doubles in session


Current system
18011-1804
A 2256 AB


Nearby doubles
32' : 17590-1754
TDS 894

34' : 17590-1820
ARA 449

42' : 17584-1747
RST3140

44' : 18007-1721
SKF 86

47' : 17594-1724
RST3144

50' : 18039-1832
ARA 450

53' : 17574-1804
A 2254

54' : 18009-1858
HJ 2815

61' : 18023-1903
ARA 722

66' : 18036-1859
TSN 185

74' : 17590-1658
ARA 97

75' : 18025-1916
BHA 22

79' : 18047-1903
B 2852

79' : 18048-1902
OCC 536

80' : 18004-1923
OCC 526

80' : 18039-1913
B 2431

81' : 18046-1702
HU 194

82' : 18033-1919
BRT1512

83' : 17582-1916
CHR 66

83' : 17569-1903
FEN 25

83' : 17571-1906
ARA 719

86' : 17551-1818
ARA 448

88' : 18055-1906
ARA 727

89' : 17579-1921
RST5097

89' : 17554-1843
RST3136

92' : 18041-1644
RST3993



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 18011-1804 : COMPONENTS
 
 
  A B C D
B pa=161.6°
sep=0.25"
 
C pa=3.6°
sep=6.83"
pa=2.9°
sep=7.06"
 
D pa=129.7°
sep=6.99"
pa=128.6°
sep=6.78"
pa=156.3°
sep=12.32"
 
E pa=125.2°
sep=21.16"
pa=124.8°
sep=20.96"
pa=138.4°
sep=25.41"
pa=122.9°
sep=14.20"
 
 
18011-1804 A
 
 
Coord arcsec 2000 180103.14-180424.3 Mag 8.8 Spectral class B9V (blue-white) PmRA -2.00
PmDE -2.0 SAO 160994 Tycho2 6255-01015-1 HD 164261
GC 24507 DM BD-18 4757
Tycho2
Tycho2 6255-01015-1 Pflag RAmdeg 270.26310032 DEmdeg -18.07343068
PmRA -2.0 PmDE -2.1 E RAmdeg 6 E DEmdeg 8
E pmRA 1.3 E pmDE 1.5 EpRAm 1991.27 EpDEm 1991.05
Num 11 Q RAmdeg 1.0 Q DEmdeg 1.1 Q pmRA 1.0
Q pmDE 1.1 BTmag 8.541 E BTmag 0.017 VTmag 8.402
E VTmag 0.014 Prox 973 TYC T HIP
CCDM RAdeg 270.26310556 DEdeg -18.07342583 EpRA 1990 1.82
EpDE 1990 1.78 E RAdeg 5.9 E DEdeg 7.5 Posflg
Corr 0.1
SAO
SAO 160994 DelFlag RA1950 PmRA1950 -0.0005
DE1950 PmDE1950 0.002 Vmag 8.8 SpType A0
Double code Source 70 CatNum 24507 DM BD-18 4757
DMcomp BDsup HD 164261 M HD 0
GC 24507 RA1950rad 4.70421135 DE1950rad -0.31542975 PmRA2000 -0.0004
PmDE2000 0.004
CCDM
Ccdm 18011-1804 RComp Comp A Note1
Note2 Discov num DRAs -2.87 DDEs -23.6
R dRAs 10 Year Theta Rho
Obs 5 Vmag 9.2 Sp A0 PmNote *
PmRA -6 PmDE 3 Dm number -18 4757 Cat1 BD
Name2 160994 Cat2 SAO HD 164261 M HD
ADS BDS A10967 M ADS BDS N IDS IDS 17552S1804A
HIC
 
 
18011-1804 B
 
 
Coord arcsec 2000 180103.15-180424.5 Mag 9.8 Calc delta mag 1 Calc coord yes
CCDM
Ccdm 18011-1804 RComp Comp B Note1
Note2 Discov num A 2256 DRAs DDEs
R dRAs Year 1910 Theta 148 Rho 0.4
Obs 4 Vmag 10.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10967 M ADS BDS N IDS IDS 17552S1804B
HIC
 
 
18011-1804 C
 
 
Coord arcsec 2000 180103.17-180417.5 Mag 13.9 Calc delta mag 5.1 Calc coord yes
CCDM
Ccdm 18011-1804 RComp Comp C Note1
Note2 Discov num A 2256 DRAs DDEs
R dRAs Year 1917 Theta 004 Rho 6.8
Obs 1 Vmag 14.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10967 M ADS BDS N IDS IDS 17552S1804C
HIC
 
 
18011-1804 D
 
 
Coord arcsec 2000 180103.52-180428.8 Mag 13 Calc delta mag 4.2 Calc coord yes
CCDM
Ccdm 18011-1804 RComp Comp D Note1
Note2 Discov num A 2256 DRAs DDEs
R dRAs Year 1910 Theta 129 Rho 7.3
Obs 3 Vmag 13.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10967 M ADS BDS N IDS IDS 17552S1804D
HIC
 
 
18011-1804 E
 
 
Coord arcsec 2000 180104.35-180436.5 Mag 12.4 PmRA 5.00 PmDE -21.0
Calc delta mag 3.6 Calc coord yes
CCDM
Ccdm 18011-1804 RComp Comp E Note1
Note2 Discov num A 2256 DRAs DDEs
R dRAs Year 1926 Theta 124 Rho 22.4
Obs 1 Vmag 13.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10967 M ADS BDS N IDS IDS 17552S1804E
HIC