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Doubles in session


Current system
21187+2118
HDS 3033 Aa,Ab


Nearby doubles
18' : 21192+2134
TDT2900

21' : 21194+2136
UC 4442

25' : 21174+2135
COU 228

27' : 21169+2129
TDS1122

30' : 21174+2053
KUI 106

33' : 21187+2149
LDS4878

37' : 21162+2128
SLW1235

40' : 21197+2155
TDT2907

42' : 21209+2050
CBL 531

43' : 21157+2128
RAO 450

59' : 21164+2206
AZC 111

60' : 21224+2146
GRV 457

64' : 21146+2147
KPP2406

67' : 21161+2214
KPP4230AB

69' : 21235+2125
SKF 15

70' : 21234+2139
J 2345

71' : 21147+2034
TDT2853

76' : 21161+2011
SLW1234

82' : 21210+2233
COU 229

83' : 21187+2240
UC 4439

84' : 21174+2239
UC 4429

84' : 21133+2041
BRT2493

84' : 21247+2116
HU 370

87' : 21200+1953
GRV 447

87' : 21138+2025
TDT2838

94' : 21211+2244
AZC 112AB



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 21187+2118 : COMPONENTS
 
 
  A Ab
Ab pa=320.9°
sep=0.04"
 
B pa=106.2°
sep=82.47"
pa=106.2°
sep=82.50"
 
 
21187+2118 A
 
 
Name HD 202976 Coord arcsec 2000 211840.58+211747.1 Mag 9.14 Spectral class A0 (white)
PmRA -1.00 PmDE -16.0 HIP 105209 Tycho2 1662-00317-1
BD BD+20 4883
Tycho2
Tycho2 1662-00317-1 Pflag RAmdeg 319.66910058 DEmdeg 21.29640933
PmRA -0.7 PmDE -14.3 E RAmdeg 10 E DEmdeg 10
E pmRA 0.9 E pmDE 0.9 EpRAm 1988.80 EpDEm 1989.06
Num 14 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 1.0
Q pmDE 1.0 BTmag 9.641 E BTmag 0.022 VTmag 9.143
E VTmag 0.017 Prox 897 TYC T HIP 105209
CCDM AB RAdeg 319.66910167 DEdeg 21.29644139 EpRA 1990 1.57
EpDE 1990 1.61 E RAdeg 10.6 E DEdeg 10.8 Posflg P
Corr 0.1
Hipparcos
Catalog H HIP 105209 Proxy H RAhms 21 18 40.58
DEdms +21 17 47.2 Vmag 9.11 VarFlag R Vmag H
RAdeg 319.669 DEdeg 21.2964 AstroRef * Plx 4.79
CCDM 21187+2118 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AB
Theta 349 Rho 0.146 HD BD BD+20 4883
CD CP Dm number +20 4883 VIred 0.52
SpType F2 R SpType Coord arcsec 2000 211840.58+211747.2
Hipparcos 2
HIP 105209 Sn 55 So 3 Nc 2
RArad 5.579278238 DErad 0.3716931274 Plx 4.22 PmRA -1.23
PmDE -16.3 E RArad 0.96 E DErad 0.84 E Plx 1.47
E pmRA 1.35 E pmDE 1.23 Hpmag 9.2127 E Hpmag 0.0022
SHp 0.018 VA 0 BV 0.467 E BV 0.022
VI 0.54
CCDM
Ccdm 21187+2118 RComp Comp A Note1
Note2 Discov num DRAs -1.41 DDEs -13.0
R dRAs 82 Year Theta Rho
Obs 2 Vmag 9.7 Sp F2 PmNote *
PmRA -2 PmDE -17 Dm number +20 4883 Cat1 BD
Name2 +21 2352 Cat2 AGK2/3 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 105209
 
 
21187+2118 Ab
 
 
Coord arcsec 2000 211840.58+211747.1 Mag 10.31 Calc delta mag 0.61 Calc coord yes
 
 
21187+2118 B
 
 
Coord arcsec 2000 211846.25+211724.2 Mag 9.43 PmRA 3.00 PmDE 2.0
SAO 89606 Tycho2 1662-00719-1 HD 202976 DM BD+20 4885
Calc delta mag 0.27 Calc coord yes
Tycho2
Tycho2 1662-00719-1 Pflag RAmdeg 319.69562086 DEmdeg 21.29310099
PmRA 2.9 PmDE 2.3 E RAmdeg 11 E DEmdeg 11
E pmRA 1.1 E pmDE 1.0 EpRAm 1989.97 EpDEm 1990.11
Num 8 Q RAmdeg 0.7 Q DEmdeg 1.1 Q pmRA 0.7
Q pmDE 1.2 BTmag 9.455 E BTmag 0.020 VTmag 9.430
E VTmag 0.021 Prox 897 TYC T HIP
CCDM RAdeg 319.69561306 DEdeg 21.29309556 EpRA 1990 1.59
EpDE 1990 1.64 E RAdeg 10.7 E DEdeg 10.9 Posflg
Corr 0.1
SAO
SAO 89606 DelFlag RA1950 PmRA1950 -0.0001
DE1950 PmDE1950 0.014 Vmag 9 SpType A0
Double code Source 35 CatNum 8170 DM BD+20 4885
DMcomp BDsup HD 202976 M HD 0
GC RA1950rad 5.5697824 DE1950rad 0.3679454 PmRA2000 -0.0001
PmDE2000 0.011
CCDM
Ccdm 21187+2118 RComp Comp B Note1
Note2 Discov num HDS DRAs -1.41 DDEs -12.8
R dRAs 82 Year 1991 Theta 349 Rho 0.2
Obs 1 Vmag 10.3 Sp PmNote *
PmRA -2 PmDE -17 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 105209