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Doubles in session


Current system
18081+0213
BU 636 AD


Nearby doubles
6' : 18083+0209
BAL1954

10' : 18080+0222
WLY 9

10' : 18083+0230
BAL1953AB

14' : 18076+0224
BAL1952

18' : 18074+0227
BAL1951

21' : 18079+0153
OSO 93AB

24' : 18069+0159
BAL1498

34' : 18103+0209
DAL 18AB

39' : 18104+0232
STF2288

40' : 18103+0235
STF2287AB

42' : 18097+0247
BAL1955

44' : 18055+0230
STF2272AB

51' : 18052+0238
BAL1950

55' : 18061+0127
BAL1497

56' : 18117+0200
BAL1499

61' : 18121+0207
BAL1957

61' : 18099+0307
BU 637AB

62' : 18076+0314
SLE 85

63' : 18090+0315
BAL2477

65' : 18077+0317
AG 216

66' : 18040+0150
TOK 695

66' : 18123+0154
A 2260AB

70' : 18046+0258
BAL1949

71' : 18055+0311
HEI 257

72' : 18084+0325
BAL2475

73' : 18034+0231
A 2191



Selections
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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 18081+0213 : COMPONENTS
 
 
  A Ab B C
Ab pa=168.1°
sep=0.11"
 
B pa=119.8°
sep=1.44"
pa=116.3°
sep=1.37"
 
C pa=93.0°
sep=11.71"
pa=92.5°
sep=11.68"
pa=89.4°
sep=10.44"
 
D pa=347.6°
sep=40.75"
pa=347.6°
sep=40.86"
pa=346.1°
sep=41.73"
pa=333.2°
sep=45.28"
 
 
18081+0213 A
 
 
Name HD 165887 Coord arcsec 2000 180807.24+021307.2 Mag 6.64 Spectral class A4V (white)
PmRA 12.00 PmDE -8.0 SAO 123156 HIP 88841
Tycho2 0435-04738-1 HD 165887 GC 24712 BD BD+02 3498
Tycho2
Tycho2 0435-04738-1 Pflag RAmdeg 272.03018598 DEmdeg 2.21865552
PmRA 10.0 PmDE -6.8 E RAmdeg 4 E DEmdeg 4
E pmRA 1.3 E pmDE 1.3 EpRAm 1991.59 EpDEm 1991.55
Num 12 Q RAmdeg 0.8 Q DEmdeg 0.8 Q pmRA 0.8
Q pmDE 0.7 BTmag 6.817 E BTmag 0.015 VTmag 6.639
E VTmag 0.010 Prox 398 TYC T HIP 88841
CCDM RAdeg 272.03016278 DEdeg 2.21867111 EpRA 1990 1.74
EpDE 1990 1.69 E RAdeg 3.9 E DEdeg 4.2 Posflg
Corr 0.0
SAO
SAO 123156 DelFlag RA1950 PmRA1950 0.0007
DE1950 PmDE1950 -0.009 Vmag 6.5 SpType A2
Double code Source 70 CatNum 24712 DM BD+02 3498
DMcomp BDsup HD 165887 M HD 0
GC 24712 RA1950rad 4.73682414 DE1950rad 0.03857711 PmRA2000 0.0009
PmDE2000 -0.009
Hipparcos
Catalog H HIP 88841 Proxy RAhms 18 08 07.24
DEdms +02 13 07.2 Vmag 6.61 VarFlag R Vmag H
RAdeg 272.03 DEdeg 2.21867 AstroRef Plx 7.24
CCDM 18081+0213 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 165887 BD BD+02 3498
CD CP Dm number +02 3498 VIred 0.16
SpType A2 R SpType Coord arcsec 2000 180807.24+021307.2
Hipparcos 2
HIP 88841 Sn 5 So 0 Nc 1
RArad 4.7478219469 DErad 0.0387231135 Plx 7.42 PmRA 11.81
PmDE -7.29 E RArad 0.4 E DErad 0.34 E Plx 0.47
E pmRA 0.5 E pmDE 0.41 Hpmag 6.6742 E Hpmag 0.0012
SHp 0.008 VA 0 BV 0.178 E BV 0.007
VI 0.2
CCDM
Ccdm 18081+0213 RComp Comp A Note1
Note2 Discov num DRAs 1.25 DDEs 7.0
R dRAs 10 Year Theta Rho
Obs 4 Vmag 6.5 Sp A2 PmNote *
PmRA 9 PmDE -13 Dm number +02 3498 Cat1 BD
Name2 +02 2208 Cat2 AGK2/3 HD 165887 M HD
ADS BDS A11088 M ADS BDS N IDS IDS 18031N0212A
HIC 88841
 
 
18081+0213 Ab
 
 
Coord arcsec 2000 180807.24+021307.1 Mag 7.4 Calc coord yes
 
 
18081+0213 B
 
 
Coord arcsec 2000 180807.32+021306.5 Mag 11.8 Calc delta mag 4.4 Calc coord yes
CCDM
Ccdm 18081+0213 RComp Comp B Note1
Note2 Discov num BU 636 DRAs DDEs
R dRAs Year 1878 Theta 127 Rho 4.6
Obs 9 Vmag 11.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11088 M ADS BDS N IDS IDS 18031N0212B
HIC 88841
 
 
18081+0213 C
 
 
Coord arcsec 2000 180808.02+021306.6 Mag 13.6 Calc delta mag 6.2 Calc coord yes
CCDM
Ccdm 18081+0213 RComp Comp C Note1
Note2 Discov num BU 636 DRAs DDEs
R dRAs Year 1920 Theta 100 Rho 13.6
Obs 3 Vmag 13.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11088 M ADS BDS N IDS IDS 18031N0212C
HIC 88841
 
 
18081+0213 D
 
 
Coord arcsec 2000 180806.66+021347.0 Mag 11.12 PmRA 5.00 PmDE -3.0
Calc delta mag 3.72 Calc coord yes
CCDM
Ccdm 18081+0213 RComp Comp D Note1
Note2 Discov num BU 636 DRAs DDEs
R dRAs Year 1923 Theta 349 Rho 41.5
Obs 1 Vmag 11.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11088 M ADS BDS N IDS IDS 18031N0212D
HIC