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Doubles in session


Current system
20486+5029
BU 366 AC


Nearby doubles
15' : 20499+5036
CBL 87

20' : 20496+5047
HDS2968

25' : 20496+5008
ES 94AB

26' : 20483+5054
ES 998

30' : 20457+5040
STT 412AB

32' : 20465+5005
HDS2958

32' : 20466+5004
HDS2959

36' : 20449+5023
SKF2395

45' : 20441+5043
LEP 171

48' : 20457+4951
TDT2521

61' : 20511+5125
BU 155AB

62' : 20422+5020
BU 675AB

65' : 20421+5013
ES 91AB

76' : 20521+4923
ES 811

77' : 20564+5044
BU 1137

80' : 20472+5148
BU 365

83' : 20570+5013
TDT2651

83' : 20434+4923
STJ 111

85' : 20438+4921
HEI 911

86' : 20487+5155
STF2732

90' : 20470+4901
HDS2962

90' : 20418+4929
HEI 910

91' : 20574+5104
ES 999

95' : 20425+4916
ARG 39AB

95' : 20585+5028
STF2741AB

98' : 20383+5023
HU 588AB



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 20486+5029 : COMPONENTS
 
 
  A B C
B pa=143.2°
sep=1.18"
 
C pa=106.1°
sep=51.25"
pa=105.3°
sep=50.31"
 
D pa=104.3°
sep=50.91"
pa=103.4°
sep=49.99"
pa=3.2°
sep=1.67"
 
 
20486+5029 A
 
 
Name HD 198455 Coord arcsec 2000 204834.14+502927.9 Mag 8.7 Spectral class A0 (white)
PmRA 3.00 PmDE 7.0 Tycho2 3582-00369-1 HD 198455
Tycho2
Tycho2 3582-00369-1 Pflag P RAmdeg 312.14227991 DEmdeg 50.49109886
PmRA 3.1 PmDE 7.4 E RAmdeg 8 E DEmdeg 7
E pmRA 1.7 E pmDE 1.7 EpRAm 1991.28 EpDEm 1991.34
Num 6 Q RAmdeg 1.0 Q DEmdeg 1.7 Q pmRA 1.0
Q pmDE 1.8 BTmag 8.813 E BTmag 0.018 VTmag 8.700
E VTmag 0.015 Prox 15 TYC T HIP
CCDM RAdeg 312.14207806 DEdeg 50.49118417 EpRA 1990 1.70
EpDE 1990 1.65 E RAdeg 7.9 E DEdeg 7.4 Posflg D
Corr 0.1
CCDM
Ccdm 20486+5029 RComp Comp A Note1
Note2 Discov num DRAs -1.93 DDEs 26.9
R dRAs 10 Year Theta Rho
Obs 4 Vmag 8.7 Sp A0 PmNote *
PmRA -7 PmDE -6 Dm number +49 3380 Cat1 BD
Name2 +50 1556 Cat2 AGK2/3 HD 198455 M HD
ADS BDS A14331 M ADS BDS N IDS IDS 20454N5007A
HIC
 
 
20486+5029 B
 
 
Coord arcsec 2000 204834.21+502927.0 Mag 8.93 PmRA 3.00 PmDE 7.0
Tycho2 3582-00369-2 Calc delta mag 0.23 Calc coord yes
Tycho2
Tycho2 3582-00369-2 Pflag P RAmdeg 312.14227991 DEmdeg 50.49109886
PmRA 3.1 PmDE 7.4 E RAmdeg 8 E DEmdeg 7
E pmRA 1.7 E pmDE 1.7 EpRAm 1991.28 EpDEm 1991.34
Num 6 Q RAmdeg 1.0 Q DEmdeg 1.7 Q pmRA 1.0
Q pmDE 1.8 BTmag 9.093 E BTmag 0.018 VTmag 8.931
E VTmag 0.016 Prox 15 TYC HIP
CCDM RAdeg 312.14257083 DEdeg 50.49091944 EpRA 1990 1.68
EpDE 1990 1.66 E RAdeg 9.3 E DEdeg 8.6 Posflg D
Corr 0.0
CCDM
Ccdm 20486+5029 RComp Comp B Note1
Note2 Discov num BU 366 DRAs DDEs
R dRAs Year 1876 Theta 128 Rho 1.4
Obs 17 Vmag 9.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14331 M ADS BDS N IDS IDS 20454N5007B
HIC
 
 
20486+5029 C
 
 
Coord arcsec 2000 204839.30+502913.7 Coord calc 204839.30+502913.7 Mag 11 PmRA 8.00
PmDE -7.0 Tycho2 3582-00301-1 Calc delta mag 2.3
Tycho2
Tycho2 3582-00301-1 Pflag RAmdeg 312.16377735 DEmdeg 50.48714453
PmRA 8.4 PmDE -7.2 E RAmdeg 37 E DEmdeg 30
E pmRA 3.2 E pmDE 3.0 EpRAm 1987.20 EpDEm 1987.68
Num 3 Q RAmdeg 0.0 Q DEmdeg 8.1 Q pmRA 0.0
Q pmDE 8.1 BTmag 11.307 E BTmag 0.071 VTmag 10.871
E VTmag 0.071 Prox 504 TYC T HIP
CCDM RAdeg 312.16374611 DEdeg 50.48710639 EpRA 1990 1.67
EpDE 1990 1.71 E RAdeg 49.7 E DEdeg 39.5 Posflg
Corr -0.1
CCDM
Ccdm 20486+5029 RComp Comp C Note1
Note2 Discov num BU 366 DRAs DDEs
R dRAs Year 1876 Theta 106 Rho 50.7
Obs 3 Vmag 10.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14331 M ADS BDS N IDS IDS 20454N5007C
HIC
 
 
20486+5029 D
 
 
Coord arcsec 2000 204839.31+502915.4 Mag 11.52 PmRA 8.00 PmDE -7.0
Calc delta mag 2.82 Calc coord yes
CCDM
Ccdm 20486+5029 RComp C Comp D Note1
Note2 Discov num D 23 DRAs DDEs
R dRAs Year 1876 Theta 007 Rho 1.5
Obs 9 Vmag 11.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14331 M ADS BDS N IDS IDS 20454N5007D
HIC