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Current system
21220+2350
COU 132
HD 203484


Nearby doubles
8' : 21216+2344
POU5350

14' : 21229+2346
POU5355

14' : 21211+2343
POU5348

15' : 21210+2354
POU5344

19' : 21210+2403
POU5346

21' : 21233+2401
POU5357

27' : 21240+2352
J 3137

27' : 21200+2353
POU5339

30' : 21198+2343
POU5336

31' : 21217+2420
POU5351

32' : 21241+2340
POU5359

32' : 21230+2322
POU5356

34' : 21213+2421
FYM 537

39' : 21198+2326
POU5335

39' : 21209+2426
POU5343

39' : 21240+2416
HJ 1641AB

40' : 21200+2419
POU5340

42' : 21210+2428
POU5345

44' : 21197+2419
POU5334

45' : 21251+2337
TDT2951

45' : 21248+2327
POU5361

45' : 21251+2401
POU5363

48' : 21210+2435
POU5347

49' : 21248+2321
CVR 900

52' : 21199+2432
POU5337

52' : 21239+2434
POU5358



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 21220+2350 : COMPONENTS
 
 
  A
B pa=199.4°
sep=12.96"
 
 
21220+2350 A
 
 
Componente originario normalizzato AB Name HD 203484 Coord arcsec 2000 212157.90+234930.7 Mag 8.85
Spectral class A3 (white) PmRA 5.00 PmDE -7.0 SAO 89651
HIP 105489 Tycho2 2187-02180-1 HD 203484 GC 29912
BD BD+23 4296
Tycho2
Tycho2 2187-02180-1 Pflag RAmdeg 320.49123447 DEmdeg 23.82519133
PmRA 6.6 PmDE -5.8 E RAmdeg 6 E DEmdeg 7
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.10 EpDEm 1990.76
Num 14 Q RAmdeg 0.7 Q DEmdeg 1.0 Q pmRA 0.8
Q pmDE 1.0 BTmag 9.087 E BTmag 0.016 VTmag 8.852
E VTmag 0.013 Prox 131 TYC T HIP 105489
CCDM A RAdeg 320.49121778 DEdeg 23.82520472 EpRA 1990 1.82
EpDE 1990 1.64 E RAdeg 6.2 E DEdeg 7.2 Posflg
Corr 0.1
SAO
SAO 89651 DelFlag RA1950 PmRA1950 0.0001
DE1950 PmDE1950 0.01 Vmag 8.7 SpType A3
Double code Source 70 CatNum 29912 DM BD+23 4296
DMcomp BDsup HD 203484 M HD 0
GC 29912 RA1950rad 5.58380827 DE1950rad 0.41209981 PmRA2000 0.0001
PmDE2000 0.006
Hipparcos
Catalog H HIP 105489 Proxy RAhms 21 21 57.89
DEdms +23 49 30.7 Vmag 8.85 VarFlag R Vmag G
RAdeg 320.491 DEdeg 23.8252 AstroRef A Plx 2.64
CCDM 21220+2349 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual A M HIP
Theta Rho HD 203484 BD BD+23 4296
CD CP Dm number +23 4296 VIred 0.31
SpType A3 R SpType Coord arcsec 2000 212157.89+234930.7
Hipparcos 2
HIP 105489 Sn 95 So 3 Nc 1
RArad 5.5936269283 DErad 0.4158282743 Plx 7.7 PmRA 5.79
PmDE -8.73 E RArad 1.14 E DErad 1.04 E Plx 1.72
E pmRA 1.43 E pmDE 1.34 Hpmag 8.8945 E Hpmag 0.0069
SHp 0.037 VA 0 BV 0.276 E BV 0.015
VI 0.31
 
 
21220+2350 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212157.59+234918.5 Mag 10.33 PmRA 4.00
PmDE -7.0 HIP 105487 Calc delta mag 1.48 Calc coord yes
Hipparcos
Catalog H HIP 105487 Proxy RAhms 21 21 57.55
DEdms +23 49 18.5 Vmag 10.26 VarFlag R Vmag H
RAdeg 320.49 DEdeg 23.8218 AstroRef B Plx 3.79
CCDM 21220+2349 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source I Qual A M HIP
Theta Rho HD BD
CD CP Dm number VIred 0.71
SpType R SpType Coord arcsec 2000 212157.55+234918.5
Hipparcos 2
HIP 105487 Sn 95 So 3 Nc 1
RArad 5.5936019622 DErad 0.4157690304 Plx 5.37 PmRA 5.58
PmDE -6.95 E RArad 1.94 E DErad 1.71 E Plx 2.85
E pmRA 2.53 E pmDE 2.22 Hpmag 10.3992 E Hpmag 0.0245
SHp 0 VA 0 BV 0.455 E BV 0.062
VI 0.52