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Doubles in session


Current system
20078+3617
SEI 903
HD 227820


Nearby doubles
4' : 20075+3619
SEI 897

5' : 20075+3618
TOB 167

9' : 20072+3616
SEI 891AB

9' : 20085+3619
SEI 911

11' : 20076+3627
SEI 898AB

11' : 20086+3623
TOB 170

13' : 20086+3610
SEI 914

14' : 20079+3605
SEI 908

14' : 20078+3603
SEI 904

15' : 20068+3611
SEI 884AB

17' : 20068+3628
KPP 804

17' : 20090+3626
SEI 920

18' : 20067+3607
SEI 883AB

18' : 20065+3609
SEI 880AB

22' : 20095+3623
ALI 409

23' : 20094+3630
SEI 928AB

25' : 20081+3554
TDS1043

25' : 20075+3553
SEI 896

26' : 20060+3606
SEI 864

26' : 20074+3553
SEI 894AB

26' : 20098+3629
COU2413

26' : 20070+3554
SEI 887AB

27' : 20073+3553
SEI 892AB

27' : 20064+3558
BUP 204AB

28' : 20101+3617
SEI 939AB

29' : 20097+3600
SEI 936



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 20078+3617 : COMPONENTS
 
 
  A
B pa=187.0°
sep=11.98"
 
 
20078+3617 A
 
 
Name HD 227820 Coord arcsec 2000 200751.30+361746.6 Mag 9.42 Spectral class A1IV (white)
PmRA -2.00 PmDE -1.0
 
 
20078+3617 B
 
 
Coord arcsec 2000 200751.18+361734.7 Mag 10.85 PmRA -3.00 PmDE -7.0
Tycho2 2683-01514-1 HD 227820 Delta magnitude 1.43 Coordinate calculated yes
Tycho2
Tycho2 2683-01514-1 Pflag RAmdeg 301.96375991 DEmdeg 36.29627867
PmRA -2.1 PmDE -1.4 E RAmdeg 12 E DEmdeg 11
E pmRA 1.2 E pmDE 1.3 EpRAm 1990.47 EpDEm 1990.74
Num 6 Q RAmdeg 0.9 Q DEmdeg 1.5 Q pmRA 0.9
Q pmDE 1.5 BTmag 9.659 E BTmag 0.021 VTmag 9.421
E VTmag 0.019 Prox 120 TYC T HIP
CCDM RAdeg 301.96376583 DEdeg 36.29628167 EpRA 1990 1.56
EpDE 1990 1.65 E RAdeg 12.1 E DEdeg 10.8 Posflg
Corr 0.2