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Doubles in session


Current system
20534-4923
SHY 784 AB
HD 198620


Nearby doubles
18' : 20533-4906
TDT2608

19' : 20546-4938
TOK 680AB

55' : 20568-4840
HU 1332

57' : 20529-4826
CPO9297

65' : 20469-4929
CBL 180

70' : 20516-5030
KPP 479

75' : 20458-4920
HDS2956

77' : 21011-4907
SKF 765

79' : 21004-5003
UC 4358

95' : 21014-5019
SKF 379

96' : 20591-4806
RST3273

105' : 20485-4750
TDT2554

105' : 20433-4959
UC 4269

106' : 20450-5029
I 17AB

109' : 20539-5111
CPO 618

112' : 21027-5030
B 2489

116' : 20596-4746
I 1431

116' : 21037-5021
UC 4369

122' : 20421-4825
SKF1167

125' : 21000-5111
I 1432

126' : 21009-5107
RST1079

128' : 20455-5105
HU 1618

128' : 21063-4904
TDT2749

131' : 20469-4730
UC 4285

132' : 21013-5110
KPP2255

132' : 20403-4956
KRW 2



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 20534-4923 : COMPONENTS
 
 
  A B
B pa=133.6°
sep=348.04"
 
C pa=133.8°
sep=350.37"
pa=156.8°
sep=2.53"
 
 
20534-4923 A
 
 
Name HD 198620 Coord arcsec 2000 205325.93-492258.4 Mag 8.79 Spectral class F6V (yellow-white)
PmRA 44.00 PmDE -30.0 SAO 230418 HIP 103107
Tycho2 8416-01162-1 HD 198620 CD CD-4913251 CP CP-4911327
Tycho2
Tycho2 8416-01162-1 Pflag RAmdeg 313.35804257 DEmdeg -49.38289233
PmRA 46.5 PmDE -29.3 E RAmdeg 7 E DEmdeg 9
E pmRA 1.2 E pmDE 1.1 EpRAm 1990.77 EpDEm 1989.88
Num 10 Q RAmdeg 0.6 Q DEmdeg 0.9 Q pmRA 0.6
Q pmDE 0.9 BTmag 9.325 E BTmag 0.019 VTmag 8.791
E VTmag 0.014 Prox 999 TYC T HIP 103107
CCDM RAdeg 313.35787778 DEdeg -49.38282500 EpRA 1990 1.72
EpDE 1990 1.73 E RAdeg 7.3 E DEdeg 8.5 Posflg
Corr 0.0
SAO
SAO 230418 DelFlag RA1950 PmRA1950 0.0046
DE1950 PmDE1950 -0.031 Vmag 8.7 SpType F5
Double code Source 48 CatNum 19050 DM CP-4911327
DMcomp BDsup HD 198620 M HD 0
GC RA1950rad 5.45376575 DE1950rad -0.86519654 PmRA2000 0.0044
PmDE2000 -0.035
Hipparcos
Catalog H HIP 103107 Proxy RAhms 20 53 25.89
DEdms -49 22 58.2 Vmag 8.76 VarFlag R Vmag H
RAdeg 313.358 DEdeg -49.3828 AstroRef Plx 13.74
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 198620 BD
CD CD-4913251 CP CP-4911327 Dm number -4913251 VIred 0.64
SpType F6V R SpType Coord arcsec 2000 205325.89-492258.2
Hipparcos 2
HIP 103107 Sn 5 So 0 Nc 1
RArad 5.4691267636 DErad -0.8618928735 Plx 13.95 PmRA 42.05
PmDE -29.88 E RArad 1.02 E DErad 0.82 E Plx 1.22
E pmRA 1.38 E pmDE 0.87 Hpmag 8.8717 E Hpmag 0.0016
SHp 0.014 VA 0 BV 0.501 E BV 0.016
VI 0.57
 
 
20534-4923 B
 
 
Coord arcsec 2000 205351.75-492658.5 Coord calc 205351.75-492658.5 Mag 9.5 Spectral class G3/5V (yellow)
PmRA 44.00 PmDE -28.0 HIP 103139 Tycho2 8416-00812-1
HD 198675 CD CD-4913254 CP CP-4911328 Calc delta mag 0.71
Tycho2
Tycho2 8416-00812-1 Pflag RAmdeg 313.46563882 DEmdeg -49.44958907
PmRA 42.8 PmDE -26.9 E RAmdeg 13 E DEmdeg 15
E pmRA 1.3 E pmDE 1.3 EpRAm 1988.65 EpDEm 1987.78
Num 4 Q RAmdeg 1.8 Q DEmdeg 0.4 Q pmRA 1.7
Q pmDE 0.4 BTmag 10.306 E BTmag 0.030 VTmag 9.513
E VTmag 0.022 Prox 999 TYC T HIP 103139
CCDM RAdeg 313.46548889 DEdeg -49.44952722 EpRA 1990 1.72
EpDE 1990 1.73 E RAdeg 13.9 E DEdeg 16.4 Posflg
Corr 0.0
Hipparcos
Catalog H HIP 103139 Proxy RAhms 20 53 51.71
DEdms -49 26 58.3 Vmag 9.55 VarFlag R Vmag H
RAdeg 313.465 DEdeg -49.4495 AstroRef Plx 15.66
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 198675 BD
CD CD-4913254 CP CP-4911328 Dm number -4913254 VIred 0.81
SpType G3/G5V R SpType Coord arcsec 2000 205351.71-492658.3
Hipparcos 2
HIP 103139 Sn 5 So 0 Nc 1
RArad 5.4710046474 DErad -0.8630570935 Plx 15.02 PmRA 44.89
PmDE -26.82 E RArad 1.39 E DErad 1.04 E Plx 1.58
E pmRA 1.82 E pmDE 1.14 Hpmag 9.6944 E Hpmag 0.003
SHp 0.026 VA 0 BV 0.731 E BV 0.03
VI 0.78
 
 
20534-4923 C
 
 
Coord arcsec 2000 205351.85-492700.8 Mag 16 PmRA 45.00 PmDE -27.0
Calc delta mag 7.21 Calc coord yes