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Current system
20016+3435
COU 1947
HD 189983


Nearby doubles
10' : 20013+3426
SEI 790

14' : 20025+3427
SEI 811

15' : 20004+3434
SEI 779

17' : 20012+3451
SEI 788

18' : 20015+3452
POP 63

19' : 20002+3429
POP 61

19' : 20016+3417
SEI 793

22' : 20001+3423
HU 1308AB

23' : 20025+3450
SEI 812

23' : 19598+3432
LEP 168

23' : 20005+3418
SEI 780

23' : 20031+3421
BKO 525

24' : 20034+3432
TDS1036

25' : 20032+3421
SEI 820

26' : 20020+3411
SEI 800

26' : 20030+3416
BKO 524

27' : 20035+3448
SEI 824

28' : 20034+3420
SEI 823

30' : 20002+3459
SEI 776

33' : 19594+3454
GAT 28

34' : 20043+3431
SEI 836

35' : 19589+3447
TDT1897

36' : 20041+3419
SEI 834

36' : 20016+3358
SEI 794

39' : 19586+3424
SEI 754AB

40' : 20033+3403
SEI 822



Selections
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Binary Systems
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Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.
 
 
WDS 20016+3435 : COMPONENTS
 
 
  A
B pa=91.1°
sep=0.27"
 
 
20016+3435 A
 
 
Componente originario normalizzato AB Name HD 189983 Coord arcsec 2000 200133.86+343459.1 Mag 8.86
Spectral class B8V (blue-white) PmRA 5.00 PmDE 6.0 SAO 69276
HIP 98593 Tycho2 2678-01481-1 HD 189983 BD BD+34 3840
Tycho2
Tycho2 2678-01481-1 Pflag RAmdeg 300.39111388 DEmdeg 34.58309400
PmRA 8.5 PmDE -1.8 E RAmdeg 6 E DEmdeg 6
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.11 EpDEm 1991.33
Num 8 Q RAmdeg 1.3 Q DEmdeg 0.7 Q pmRA 1.3
Q pmDE 0.7 BTmag 8.584 E BTmag 0.016 VTmag 8.538
E VTmag 0.012 Prox 756 TYC T HIP 98593
CCDM AB RAdeg 300.39108944 DEdeg 34.58309833 EpRA 1990 1.57
EpDE 1990 1.78 E RAdeg 6.2 E DEdeg 5.6 Posflg P
Corr 0.1
SAO
SAO 69276 DelFlag RA1950 PmRA1950 0.0009
DE1950 PmDE1950 -0.002 Vmag 8.6 SpType A0
Double code Source 6 CatNum 1964 DM BD+34 3840
DMcomp BDsup HD 189983 M HD 0
GC RA1950rad 5.23451704 DE1950rad 0.60114881 PmRA2000 0.0011
PmDE2000 -0.004
Hipparcos
Catalog H HIP 98593 Proxy H RAhms 20 01 33.86
DEdms +34 34 59.1 Vmag 8.54 VarFlag R Vmag G
RAdeg 300.391 DEdeg 34.5831 AstroRef * Plx 1.87
CCDM 20016+3435 N CCDM M Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 93 Rho 0.269 HD 189983 BD BD+34 3840
CD CP Dm number +34 3840 VIred 0.03
SpType B8V R SpType Coord arcsec 2000 200133.86+343459.1
Hipparcos 2
HIP 98593 Sn 55 So 3 Nc 2
RArad 5.2428135835 DErad 0.6035888843 Plx 3.45 PmRA 7.31
PmDE -3.73 E RArad 0.66 E DErad 0.6 E Plx 0.83
E pmRA 0.72 E pmDE 0.64 Hpmag 8.5452 E Hpmag 0.0015
SHp 0.015 VA 0 BV 0.01 E BV 0.015
VI 0.03
CCDM
Ccdm 20016+3435 RComp Comp A Note1
Note2 Discov num DRAs -2.09 DDEs -0.8
R dRAs 81 Year Theta Rho
Obs 2 Vmag 8.5 Sp A0 PmNote @
PmRA 17 PmDE 0 Dm number +34 3840 Cat1 BD
Name2 +34 1964 Cat2 AGK2/3 HD 189983 M HD
ADS BDS M ADS BDS N IDS IDS 19578N3418A
HIC 98593
 
 
20016+3435 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 200133.88+343459.1 Mag 10.05 Calc delta mag 1.19
Calc coord yes
CCDM
Ccdm 20016+3435 RComp Comp B Note1
Note2 Discov num COU1947 DRAs DDEs
R dRAs Year 1981 Theta 94 Rho 0.3
Obs 1 Vmag 9.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 19578N3418B
HIC 98593