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Doubles in session


Current system
18278-8756
TDT 891
HD 157945


Nearby doubles
53' : 18318-8704
KPP 892

195' : 18252-8442
LDS 623

272' : 18141-8325
RSS 478



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.
 
 
WDS 18278-8756 : COMPONENTS
 
 
  A
B pa=7.5°
sep=0.82"
 
 
18278-8756 A
 
 
Componente originario normalizzato AB Name HD 157945 Coord arcsec 2000 182749.49-875547.6 Mag 10.38
Spectral class F8/G0 (yellow-white) PmRA 3.00 PmDE -25.0 Tycho2 9531-00347-1
HD 157945
Tycho2
Tycho2 9531-00347-1 Pflag P RAmdeg 276.96284204 DEmdeg -87.92981200
PmRA 2.7 PmDE -24.8 E RAmdeg 37 E DEmdeg 36
E pmRA 1.7 E pmDE 1.6 EpRAm 1985.08 EpDEm 1985.12
Num 7 Q RAmdeg 0.9 Q DEmdeg 0.8 Q pmRA 0.9
Q pmDE 0.8 BTmag 10.919 E BTmag 0.043 VTmag 10.377
E VTmag 0.037 Prox 30 TYC T HIP
CCDM RAdeg 276.95602500 DEdeg -87.92982028 EpRA 1990 1.67
EpDE 1990 1.68 E RAdeg 25.0 E DEdeg 24.3 Posflg
Corr 0.1
 
 
18278-8756 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 182749.69-875546.8 Mag 10.89 PmRA 3.00
PmDE -25.0 Tycho2 9531-00347-2 Calc delta mag 0.51 Calc coord yes
Tycho2
Tycho2 9531-00347-2 Pflag P RAmdeg 276.96284204 DEmdeg -87.92981200
PmRA 2.7 PmDE -24.8 E RAmdeg 37 E DEmdeg 36
E pmRA 1.7 E pmDE 1.6 EpRAm 1985.08 EpDEm 1985.12
Num 7 Q RAmdeg 0.9 Q DEmdeg 0.8 Q pmRA 0.9
Q pmDE 0.8 BTmag 11.483 E BTmag 0.064 VTmag 10.888
E VTmag 0.059 Prox 30 TYC T HIP
CCDM RAdeg 276.97808639 DEdeg -87.92959667 EpRA 1990 1.67
EpDE 1990 1.67 E RAdeg 38.9 E DEdeg 38.3 Posflg
Corr 0.1