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Doubles in session


Current system
18383-3241
SKF 2068 AC


Nearby doubles
27' : 18370-3301
JSP 783

34' : 18363-3220
HDS2640

38' : 18407-3219
JSP 941

39' : 18396-3207
PRO 208

40' : 18362-3311
I 637

45' : 18368-3201
TDT 957

53' : 18422-3222
RST2071

54' : 18350-3209
TDT 947

58' : 18338-3248
I 1025

58' : 18338-3230
PRO 204

59' : 18340-3301
OUD 7

66' : 18365-3342
B 940

67' : 18339-3318
BRT1782

69' : 18342-3158
PRO 205

70' : 18437-3229
FAL 63

72' : 18343-3150
RST2064

72' : 18438-3221
SHN 234

73' : 18352-3141
B 9034

74' : 18346-3338
SKF 457

75' : 18432-3323
JAO 6

75' : 18422-3146
KPP 423

81' : 18352-3139
PRO 207

83' : 18358-3357
B 2455

87' : 18354-3122
LDS6328AB

88' : 18335-3140
PRO 203

90' : 18454-3254
GAT 26



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 18383-3241 : COMPONENTS
 
 
  A B
B pa=258.8°
sep=3.93"
 
C pa=213.7°
sep=115.38"
pa=212.3°
sep=112.64"
 
 
18383-3241 A
 
 
Name HD 171840 Coord arcsec 2000 183819.80-324107.8 Mag 7.34 Spectral class F2V (yellow-white)
PmRA 7.00 PmDE -124.0 SAO 210384 HIP 91386
Tycho2 7411-06095-1 HD 171840 GC 25457 CD CD-3214337
CP CP-32 5465
Tycho2
Tycho2 7411-06095-1 Pflag RAmdeg 279.58251126 DEmdeg -32.68581642
PmRA 5.4 PmDE -127.4 E RAmdeg 4 E DEmdeg 5
E pmRA 1.3 E pmDE 1.3 EpRAm 1991.62 EpDEm 1991.45
Num 13 Q RAmdeg 0.5 Q DEmdeg 0.8 Q pmRA 0.6
Q pmDE 0.8 BTmag 7.776 E BTmag 0.015 VTmag 7.340
E VTmag 0.010 Prox 977 TYC T HIP 91386
CCDM RAdeg 279.58249667 DEdeg -32.68552861 EpRA 1990 1.91
EpDE 1990 1.87 E RAdeg 3.7 E DEdeg 4.5 Posflg
Corr -0.1
SAO
SAO 210384 DelFlag RA1950 PmRA1950 0.0017
DE1950 PmDE1950 -0.129 Vmag 7.2 SpType F5
Double code Source 70 CatNum 25457 DM CD-3214337
DMcomp BDsup HD 171840 M HD 0
GC 25457 RA1950rad 4.86537324 DE1950rad -0.57121988 PmRA2000 0.0017
PmDE2000 -0.129
Hipparcos
Catalog H HIP 91386 Proxy RAhms 18 38 19.80
DEdms -32 41 07.8 Vmag 7.29 VarFlag R Vmag H
RAdeg 279.582 DEdeg -32.6855 AstroRef Plx 13.83
CCDM 18383-3241 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 171840 BD
CD CD-3214337 CP CP-32 5465 Dm number -3214337 VIred 0.47
SpType F2V R SpType Coord arcsec 2000 183819.80-324107.8
Hipparcos 2
HIP 91386 Sn 5 So 0 Nc 1
RArad 4.8796350177 DErad -0.5704696969 Plx 14.73 PmRA 3.14
PmDE -127.09 E RArad 0.65 E DErad 0.43 E Plx 0.74
E pmRA 1.01 E pmDE 0.61 Hpmag 7.3841 E Hpmag 0.0012
SHp 0.01 VA 0 BV 0.413 E BV 0.008
VI 0.48
CCDM
Ccdm 18383-3241 RComp Comp A Note1
Note2 Discov num DRAs 1.83 DDEs -8.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.2 Sp F5 PmNote *
PmRA 14 PmDE -125 Dm number -3214337 Cat1 CD
Name2 210384 Cat2 SAO HD 171840 M HD
ADS BDS M ADS BDS N IDS IDS 18318S3246A
HIC 91386
 
 
18383-3241 B
 
 
Coord arcsec 2000 183819.49-324108.6 Mag 12.4 Calc delta mag 5.06 Calc coord yes
CCDM
Ccdm 18383-3241 RComp Comp B Note1
Note2 Discov num FIN 3 DRAs DDEs
R dRAs Year 1926 Theta 268 Rho 4.7
Obs 2 Vmag 14.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 18318S3246B
HIC 91386
 
 
18383-3241 C
 
 
Coord arcsec 2000 183814.73-324243.8 Mag 10.84 PmRA 5.00 PmDE -131.0
Tycho2 7411-05647-1 Calc delta mag 3.5 Calc coord yes
Tycho2
Tycho2 7411-05647-1 Pflag RAmdeg 279.55694221 DEmdeg -32.71252956
PmRA 3.4 PmDE -130.9 E RAmdeg 35 E DEmdeg 53
E pmRA 2.1 E pmDE 2.1 EpRAm 1988.04 EpDEm 1983.15
Num 4 Q RAmdeg 1.9 Q DEmdeg 1.9 Q pmRA 1.9
Q pmDE 2.0 BTmag 11.926 E BTmag 0.097 VTmag 10.840
E VTmag 0.062 Prox 999 TYC HIP
CCDM RAdeg 279.55693306 DEdeg -32.71223389 EpRA 1990 1.89
EpDE 1990 1.87 E RAdeg 36.4 E DEdeg 55.6 Posflg
Corr 0.0