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Doubles in session


Current system
20450+1244
BU 64 AB
HD 197683


Nearby doubles
18' : 20460+1235
KPP 477

19' : 20441+1258
J 1889

20' : 20440+1256
DAM 218

20' : 20439+1255
J 1888

22' : 20457+1302
WFC 258

23' : 20440+1225
HJ 1566AB

25' : 20449+1219
STF2723AB

29' : 20446+1312
TDS1098

33' : 20428+1244
BPM2234

34' : 20471+1257
BPM2265

36' : 20426+1244
STF2718AB

37' : 20442+1209
BPM2240

39' : 20426+1300
GWP2988

40' : 20444+1205
A 875

49' : 20418+1231
STF2715

50' : 20438+1330
BPM2238

50' : 20446+1154
BPM2251

50' : 20446+1333
YSC 242AB

55' : 20420+1212
BPM2231

56' : 20488+1248
GWP3000

56' : 20466+1334
GWP2996

56' : 20486+1223
BPM2273

61' : 20429+1152
BPM2235

61' : 20492+1243
GWP3001

63' : 20426+1335
HEI 279AB

65' : 20467+1343
BPM2262



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 20450+1244 : COMPONENTS
 
 
  A B C
B pa=174.2°
sep=0.68"
 
C pa=155.1°
sep=97.16"
pa=154.9°
sep=96.52"
 
D pa=117.6°
sep=63.02"
pa=117.1°
sep=62.65"
pa=14.2°
sep=60.77"
 
 
20450+1244 A
 
 
Name HD 197683 Coord arcsec 2000 204500.23+124336.5 Mag 9.14 Spectral class G (yellow)
PmRA -11.00 PmDE -4.0
 
 
20450+1244 B
 
 
Coord arcsec 2000 204500.23+124335.8 Mag 8.56 PmRA -11.00 PmDE -4.0
SAO 106446 HIP 102398 Tycho2 1097-00941-1 HD 197683
BD BD+12 4452 Calc delta mag 0.58 Calc coord yes
Tycho2
Tycho2 1097-00941-1 Pflag RAmdeg 311.25098508 DEmdeg 12.72682856
PmRA -11.0 PmDE -3.8 E RAmdeg 6 E DEmdeg 7
E pmRA 1.2 E pmDE 1.1 EpRAm 1991.36 EpDEm 1990.81
Num 10 Q RAmdeg 1.0 Q DEmdeg 1.6 Q pmRA 1.0
Q pmDE 1.6 BTmag 8.740 E BTmag 0.018 VTmag 8.219
E VTmag 0.013 Prox 971 TYC T HIP 102398
CCDM AB RAdeg 311.25101083 DEdeg 12.72683750 EpRA 1990 1.75
EpDE 1990 1.57 E RAdeg 6.1 E DEdeg 7.3 Posflg P
Corr 0.0
SAO
SAO 106446 DelFlag RA1950 PmRA1950 -0.0008
DE1950 PmDE1950 0.006 Vmag 8.2 SpType G
Double code Source 29 CatNum 8113 DM BD+12 4452
DMcomp BDsup HD 197683 M HD 0
GC RA1950rad 5.42199671 DE1950rad 0.2189419 PmRA2000 -0.0007
PmDE2000 0.003
Hipparcos
Catalog H HIP 102398 Proxy H RAhms 20 45 00.25
DEdms +12 43 36.3 Vmag 8.06 VarFlag R Vmag H
RAdeg 311.251 DEdeg 12.7267 AstroRef B Plx 13.18
CCDM 20450+1243 N CCDM I Nsys 2 Ncomp 2
MultFlag C Source Qual A M HIP BA
Theta 346 Rho 0.659 HD 197683 BD BD+12 4452
CD CP Dm number +12 4452 VIred 0.52
SpType F6V R SpType Coord arcsec 2000 204500.25+124336.3
Hipparcos 2
HIP 102398 Sn 15 So 3 Nc 2
RArad 5.4323554048 DErad 0.222123661 Plx 9.39 PmRA -7.79
PmDE -2.53 E RArad 1.94 E DErad 2.55 E Plx 3.26
E pmRA 2.37 E pmDE 3.27 Hpmag 8.1631 E Hpmag 0.0016
SHp 0.011 VA 0 BV 0.454 E BV 0.009
VI 0.52
 
 
20450+1244 C
 
 
Coord arcsec 2000 204503.03+124208.4 Coord calc 204503.03+124208.4 Mag 8.17 Spectral class F (yellow-white)
PmRA 28.00 PmDE 5.0 SAO 106447 HIP 102400
Tycho2 1097-01669-1 HD 197704 BD BD+12 4453 Calc delta mag 0.97
Tycho2
Tycho2 1097-01669-1 Pflag RAmdeg 311.26262733 DEmdeg 12.70234808
PmRA 28.7 PmDE 3.5 E RAmdeg 6 E DEmdeg 7
E pmRA 1.2 E pmDE 1.1 EpRAm 1991.30 EpDEm 1990.83
Num 9 Q RAmdeg 1.3 Q DEmdeg 1.3 Q pmRA 1.2
Q pmDE 1.3 BTmag 8.576 E BTmag 0.018 VTmag 8.172
E VTmag 0.013 Prox 971 TYC T HIP 102400
CCDM RAdeg 311.26255944 DEdeg 12.70234028 EpRA 1990 1.78
EpDE 1990 1.55 E RAdeg 5.7 E DEdeg 7.1 Posflg
Corr 0.0
SAO
SAO 106447 DelFlag RA1950 PmRA1950 0.0011
DE1950 PmDE1950 0.009 Vmag 8.2 SpType F
Double code Source 29 CatNum 8114 DM BD+12 4453
DMcomp BDsup HD 197704 M HD 0
GC RA1950rad 5.42218818 DE1950rad 0.21851167 PmRA2000 0.0012
PmDE2000 0.006
Hipparcos
Catalog H HIP 102400 Proxy RAhms 20 45 03.01
DEdms +12 42 08.4 Vmag 8.12 VarFlag R Vmag G
RAdeg 311.263 DEdeg 12.7023 AstroRef Plx 7.27
CCDM 20450+1243 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 197704 BD BD+12 4453
CD CP Dm number +12 4453 VIred 0.45
SpType F R SpType Coord arcsec 2000 204503.01+124208.4
Hipparcos 2
HIP 102400 Sn 5 So 0 Nc 1
RArad 5.4325565029 DErad 0.2216976595 Plx 6.57 PmRA 27.62
PmDE 5.46 E RArad 0.55 E DErad 0.41 E Plx 0.69
E pmRA 0.73 E pmDE 0.45 Hpmag 8.2207 E Hpmag 0.0013
SHp 0.011 VA 0 BV 0.36 E BV 0.042
VI 0.45
 
 
20450+1244 D
 
 
Coord arcsec 2000 204504.05+124307.3 Mag 11.06 PmRA 9.00 PmDE 5.0
Calc delta mag 1.92 Calc coord yes