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Doubles in session


Current system
20449+1219
STF 2723 AB
HD 197684


Nearby doubles
13' : 20440+1225
HJ 1566AB

14' : 20442+1209
BPM2240

16' : 20444+1205
A 875

18' : 20441+1258
J 1889

23' : 20460+1235
KPP 477

25' : 20446+1154
BPM2251

25' : 20450+1244
BU 64AB

39' : 20439+1255
J 1888

40' : 20440+1256
DAM 218

40' : 20429+1152
BPM2235

41' : 20428+1244
BPM2234

43' : 20426+1244
STF2718AB

44' : 20420+1212
BPM2231

45' : 20457+1302
WFC 258

48' : 20418+1231
STF2715

50' : 20471+1257
BPM2265

52' : 20419+1150
HEI 588

53' : 20465+1131
BPM2258

54' : 20446+1312
TDS1098

54' : 20426+1300
GWP2988

54' : 20486+1223
BPM2273

56' : 20460+1126
TDT2526

56' : 20414+1157
TDT2472

60' : 20410+1206
HEI 587

63' : 20440+1118
UC 4272

64' : 20488+1248
GWP3000



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 20449+1219 : COMPONENTS
 
 
  A Ab B
Ab pa=50.9°
sep=0.11"
 
B pa=140.8°
sep=1.00"
pa=147.1°
sep=1.01"
 
C pa=29.5°
sep=36.75"
pa=29.5°
sep=36.65"
pa=28.1°
sep=37.13"
 
 
20449+1219 A
 
 
Name HD 197684 Coord arcsec 2000 204454.58+121845.6 Mag 7.01 Spectral class A3IV (white)
PmRA 20.00 PmDE 3.0 SAO 106443 HIP 102390
Tycho2 1097-02486-1 HD 197684 GC 28916 BD BD+11 4368
Tycho2
Tycho2 1097-02486-1 Pflag P RAmdeg 311.22748511 DEmdeg 12.31263712
PmRA 20.1 PmDE 2.6 E RAmdeg 4 E DEmdeg 5
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.59 EpDEm 1991.19
Num 10 Q RAmdeg 1.8 Q DEmdeg 1.4 Q pmRA 1.8
Q pmDE 1.4 BTmag 7.180 E BTmag 0.015 VTmag 7.008
E VTmag 0.010 Prox 11 TYC T HIP 102390
CCDM A RAdeg 311.22740389 DEdeg 12.31265667 EpRA 1990 1.76
EpDE 1990 1.48 E RAdeg 3.8 E DEdeg 4.5 Posflg D
Corr 0.0
SAO
SAO 106443 DelFlag RA1950 PmRA1950 0.0019
DE1950 PmDE1950 -0.008 Vmag 6.7 SpType A0
Double code Source 70 CatNum 28916 DM BD+11 4368
DMcomp BDsup HD 197684 M HD 0
GC 28916 RA1950rad 5.42155456 DE1950rad 0.21170704 PmRA2000 0.002
PmDE2000 -0.011
Hipparcos
Catalog H HIP 102390 Proxy H RAhms 20 44 54.58
DEdms +12 18 45.6 Vmag 6.71 VarFlag R Vmag H
RAdeg 311.227 DEdeg 12.3127 AstroRef A Plx 4.81
CCDM 20449+1219 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 128 Rho 1.088 HD 197684 BD BD+11 4368
CD CP Dm number +11 4368 VIred 0.15
SpType A0 R SpType Coord arcsec 2000 204454.58+121845.6
Hipparcos 2
HIP 102390 Sn 15 So 3 Nc 2
RArad 5.4319428562 DErad 0.214896382 Plx 4.78 PmRA 20.43
PmDE 4.05 E RArad 0.57 E DErad 0.46 E Plx 0.71
E pmRA 0.81 E pmDE 0.51 Hpmag 6.7675 E Hpmag 0.0013
SHp 0.009 VA 0 BV 0.17 E BV 0.012
VI 0.19
CCDM
Ccdm 20449+1219 RComp Comp A Note1
Note2 Discov num DRAs 0.61 DDEs -14.5
R dRAs 10 Year Theta Rho
Obs 3 Vmag 6.9 Sp A0 PmNote *
PmRA 17 PmDE 9 Dm number +11 4368 Cat1 BD
Name2 +12 2380 Cat2 AGK2/3 HD 197684 M HD
ADS BDS A14233 M ADS BDS N IDS IDS 20402N1157A
HIC 102390
 
 
20449+1219 Ab
 
 
Coord arcsec 2000 204454.59+121845.7 Calc delta mag 7.01 Calc coord yes
 
 
20449+1219 B
 
 
Coord arcsec 2000 204454.62+121844.8 Mag 8.3 PmRA 20.00 PmDE 3.0
Tycho2 1097-02486-2 Calc delta mag 1.29 Calc coord yes
Tycho2
Tycho2 1097-02486-2 Pflag P RAmdeg 311.22748511 DEmdeg 12.31263712
PmRA 20.1 PmDE 2.6 E RAmdeg 4 E DEmdeg 5
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.59 EpDEm 1991.19
Num 10 Q RAmdeg 1.8 Q DEmdeg 1.4 Q pmRA 1.8
Q pmDE 1.4 BTmag 8.570 E BTmag 0.018 VTmag 8.300
E VTmag 0.013 Prox 11 TYC HIP 102390
CCDM B RAdeg 311.22764722 DEdeg 12.31247472 EpRA 1990 1.73
EpDE 1990 1.44 E RAdeg 5.7 E DEdeg 7.7 Posflg D
Corr 0.0
CCDM
Ccdm 20449+1219 RComp Comp B Note1
Note2 Discov num STF2723 DRAs DDEs
R dRAs Year 1960 Theta 116 Rho 1.2
Obs 99 Vmag 8.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14233 M ADS BDS N IDS IDS 20402N1157B
HIC 102390
 
 
20449+1219 C
 
 
Coord arcsec 2000 204455.82+121917.6 Mag 13 PmRA -2.00 PmDE -2.0
Calc delta mag 5.99 Calc coord yes