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Current system
20544+6957
A 1216 CD


Nearby doubles
44' : 21027+7005
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MLB 363

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MLB 303

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STF2771

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A 873

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LDS1945

109' : 21078+7123
HDS3012

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LI 6AB

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MLB 420

117' : 20458+7146
SKF1249

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MLB 299

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KPP4220



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.
 
 
WDS 20544+6957 : COMPONENTS
 
 
  A B C
B pa=347.5°
sep=17.34"
 
C pa=346.8°
sep=38.93"
pa=346.2°
sep=21.60"
 
D pa=347.3°
sep=38.98"
pa=347.0°
sep=21.64"
pa=68.7°
sep=0.32"
 
 
20544+6957 A
 
 
Coord arcsec 2000 205422.42+695651.0 Mag 7.97 Spectral class K0 (yellow-orange) PmRA -3.00
PmDE 11.0 SAO 19093 HIP 103190 Tycho2 4464-00465-1
HD 199660 BD BD+69 1136
Tycho2
Tycho2 4464-00465-1 Pflag RAmdeg 313.59342712 DEmdeg 69.94752403
PmRA -2.0 PmDE 11.1 E RAmdeg 6 E DEmdeg 6
E pmRA 1.1 E pmDE 1.2 EpRAm 1991.05 EpDEm 1991.18
Num 12 Q RAmdeg 0.7 Q DEmdeg 0.7 Q pmRA 0.7
Q pmDE 0.7 BTmag 9.118 E BTmag 0.017 VTmag 7.973
E VTmag 0.011 Prox 391 TYC T HIP 103190
CCDM RAdeg 313.59344000 DEdeg 69.94749833 EpRA 1990 1.79
EpDE 1990 1.72 E RAdeg 5.8 E DEdeg 6.0 Posflg
Corr 0.0
SAO
SAO 19093 DelFlag RA1950 PmRA1950 -0.0017
DE1950 PmDE1950 -0.005 Vmag 8 SpType K0
Double code Source 2 CatNum 877 DM BD+69 1136
DMcomp BDsup HD 199660 M HD 0
GC RA1950rad 5.47165254 DE1950rad 1.21746288 PmRA2000 -0.0012
PmDE2000 -0.01
Hipparcos
Catalog H HIP 103190 Proxy RAhms 20 54 22.42
DEdms +69 56 51.0 Vmag 7.86 VarFlag R Vmag H
RAdeg 313.593 DEdeg 69.9475 AstroRef Plx 3.81
CCDM 20544+6957 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 199660 BD BD+69 1136
CD CP Dm number +69 1136 VIred 0.97
SpType K0 R SpType Coord arcsec 2000 205422.42+695651.0
Hipparcos 2
HIP 103190 Sn 5 So 0 Nc 1
RArad 5.4732379797 DErad 1.2208140709 Plx 3.87 PmRA -2.8
PmDE 10.98 E RArad 0.42 E DErad 0.42 E Plx 0.46
E pmRA 0.52 E pmDE 0.53 Hpmag 8.0253 E Hpmag 0.0017
SHp 0.012 VA 0 BV 0.974 E BV 0.014
VI 0.96
CCDM
Ccdm 20544+6957 RComp Comp A Note1
Note2 Discov num DRAs -1.61 DDEs -9.2
R dRAs 10 Year Theta Rho
Obs 4 Vmag 7.8 Sp K0 PmNote *
PmRA -8 PmDE 11 Dm number +69 1136 Cat1 BD
Name2 +69 877 Cat2 AGK2/3 HD 199660 M HD
ADS BDS A14441 M ADS BDS N IDS IDS 20536N6934A
HIC 103190
 
 
20544+6957 B
 
 
Coord arcsec 2000 205421.69+695707.9 Mag 15 Calc delta mag 7.03 Calc coord yes
CCDM
Ccdm 20544+6957 RComp Comp B Note1
Note2 Discov num A 1216 DRAs DDEs
R dRAs Year 1932 Theta 337 Rho 20.8
Obs 3 Vmag 14.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14441 M ADS BDS N IDS IDS 20536N6934B
HIC
 
 
20544+6957 C
 
 
Coord arcsec 2000 205420.69+695728.9 Coord calc 205420.69+695728.9 Mag 10.61 PmRA -24.00
PmDE -17.0 Calc delta mag 2.64
CCDM
Ccdm 20544+6957 RComp Comp C Note1
Note2 Discov num A 1216 DRAs DDEs
R dRAs Year 1932 Theta 351 Rho 40.9
Obs 3 Vmag 10.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14441 M ADS BDS N IDS IDS 20536N6934C
HIC
 
 
20544+6957 D
 
 
Coord arcsec 2000 205420.75+695729.0 Mag 11.6 Calc delta mag 3.63 Calc coord yes
CCDM
Ccdm 20544+6957 RComp C Comp D Note1
Note2 Discov num A 1216 DRAs DDEs
R dRAs Year 1904 Theta 091 Rho 0.8
Obs 3 Vmag 11.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14441 M ADS BDS N IDS IDS 20536N6934D
HIC