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Doubles in session


Current system
20493+3923
SEI 1263 AB


Nearby doubles
5' : 20490+3925
TDT2560

7' : 20489+3919
TDT2558

17' : 20480+3917
A 1434AB

22' : 20510+3915
SEI1279AB

24' : 20514+3927
TDT2581

25' : 20498+3900
MLB 983

25' : 20490+3947
STF2731AB

28' : 20478+3944
GRV 381

32' : 20515+3944
DAM 317AB

32' : 20514+3945
MLB 779AB

33' : 20519+3911
SEI1283

34' : 20509+3855
SEI1278

37' : 20498+3958
SEI1267

38' : 20481+3958
CVR 231

39' : 20486+4000
TOB 198

40' : 20528+3925
SEI1290

41' : 20484+4002
SEI1255AB

43' : 20471+3850
HJ 1575

44' : 20457+3917
SEI1241

45' : 20461+3858
CRB 11

47' : 20531+3940
SEI1292

48' : 20478+3840
SEI1251

49' : 20476+3839
SEI1249

51' : 20498+3833
HJ 1582AB

51' : 20511+3837
SEI1281

51' : 20459+3852
COU2294



Selections
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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 20493+3923 : COMPONENTS
 
 
  A B C
B pa=98.4°
sep=23.21"
 
C pa=90.6°
sep=25.83"
pa=42.5°
sep=4.25"
 
D pa=85.5°
sep=28.90"
pa=45.8°
sep=8.16"
pa=49.4°
sep=3.93"
 
 
20493+3923 A
 
 
Coord arcsec 2000 204919.21+392311.3 Mag 11.48 PmRA 8.00 PmDE 5.0
Tycho2 3170-00055-1
Tycho2
Tycho2 3170-00055-1 Pflag RAmdeg 312.33002744 DEmdeg 39.38646412
PmRA 7.1 PmDE 1.5 E RAmdeg 47 E DEmdeg 47
E pmRA 1.5 E pmDE 1.4 EpRAm 1977.89 EpDEm 1976.62
Num 7 Q RAmdeg 1.8 Q DEmdeg 1.6 Q pmRA 1.7
Q pmDE 1.6 BTmag 11.991 E BTmag 0.090 VTmag 11.482
E VTmag 0.086 Prox 231 TYC T HIP
CCDM RAdeg 312.33000111 DEdeg 39.38646111 EpRA 1990 1.65
EpDE 1990 1.74 E RAdeg 51.9 E DEdeg 51.5 Posflg
Corr 0.0
 
 
20493+3923 B
 
 
Coord arcsec 2000 204921.19+392307.9 Coord calc 204921.19+392307.9 Mag 11.6 Spectral class K0 (yellow-orange)
PmRA 28.00 PmDE 8.0 Tycho2 3170-00010-1 Calc delta mag 0.12
Tycho2
Tycho2 3170-00010-1 Pflag RAmdeg 312.33833874 DEmdeg 39.38557262
PmRA 32.2 PmDE 10.2 E RAmdeg 58 E DEmdeg 55
E pmRA 1.8 E pmDE 1.7 EpRAm 1977.41 EpDEm 1976.68
Num 6 Q RAmdeg 1.0 Q DEmdeg 1.2 Q pmRA 1.0
Q pmDE 1.2 BTmag 12.486 E BTmag 0.163 VTmag 11.597
E VTmag 0.101 Prox 231 TYC HIP
CCDM RAdeg 312.33823944 DEdeg 39.38554889 EpRA 1990 1.65
EpDE 1990 1.74 E RAdeg 63.5 E DEdeg 60.9 Posflg
Corr 0.0
 
 
20493+3923 C
 
 
Coord arcsec 2000 204921.44+392311.0 Mag 12.5 Calc delta mag 1.02 Calc coord yes
 
 
20493+3923 D
 
 
Coord arcsec 2000 204921.70+392313.6 Mag 12.4 PmRA 7.00 PmDE 3.0
Calc delta mag 0.92 Calc coord yes