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Doubles in session


Current system
18176-3646
BU 760 AC


Nearby doubles
10' : 18179-3654
B 2441

27' : 18160-3703
B 1355

28' : 18156-3633
RST3165

28' : 18197-3700
RST3172

34' : 18172-3719
RST3168

35' : 18166-3717
WFC 284

37' : 18207-3647
B 1356

37' : 18153-3623
B 1354AB

37' : 18146-3654
B 935

55' : 18215-3715
B 2445

55' : 18202-3601
BRT1769

57' : 18130-3651
B 931

62' : 18127-3629
B 928

63' : 18128-3711
B 930

67' : 18142-3737
B 934AB

68' : 18180-3538
B 425AB

69' : 18121-3703
SEE 347

73' : 18187-3534
LDS 636

74' : 18142-3747
RST3163

78' : 18155-3532
BRT1763

82' : 18114-3615
RST3160

84' : 18131-3750
B 932

87' : 18203-3526
TOK 801

87' : 18248-3642
POL 6

91' : 18142-3525
B 424AB

93' : 18165-3817
RST2041



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 18176-3646 : COMPONENTS
 
 
  A B C
B pa=114.8°
sep=2.86"
 
C pa=325.9°
sep=26.09"
pa=322.9°
sep=28.57"
 
D pa=324.4°
sep=86.02"
pa=323.5°
sep=88.52"
pa=323.7°
sep=59.95"
 
 
18176-3646 A
 
 
Name Eta Sgr Coord arcsec 2000 181737.73-364540.6 Mag 3.3 Spectral class M3.5III (red)
PmRA -128.00 PmDE -167.0 SAO 209957 HIP 89642
Tycho2 7404-07057-1 HD 167618 HR 6832 GC 24944
CD CD-3612423 CP CP-36 8128 Bayer Eta Sagittarii Bayer name Eta Sgr
FK5 683
Tycho2
Tycho2 7404-07057-1 Pflag RAmdeg 274.40680477 DEmdeg -36.76168819
PmRA -131.2 PmDE -167.9 E RAmdeg 3 E DEmdeg 4
E pmRA 0.7 E pmDE 0.7 EpRAm 1991.56 EpDEm 1991.34
Num 20 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 1.1
Q pmDE 1.1 BTmag 5.153 E BTmag 0.014 VTmag 3.298
E VTmag 0.009 Prox 929 TYC T HIP 89642
CCDM RAdeg 274.40717778 DEdeg -36.76130500 EpRA 1990 1.80
EpDE 1990 1.78 E RAdeg 3.2 E DEdeg 3.5 Posflg
Corr -0.1
SAO
SAO 209957 DelFlag RA1950 PmRA1950 -0.0107
DE1950 PmDE1950 -0.166 Vmag 3.2 SpType M3
Double code Source 74 CatNum 683 DM CD-3612423
DMcomp BDsup HD 167618 M HD 0
GC 24944 RA1950rad 4.77453525 DE1950rad -0.64191024 PmRA2000 -0.0106
PmDE2000 -0.167
Hipparcos
Catalog H HIP 89642 Proxy RAhms 18 17 37.73
DEdms -36 45 40.6 Vmag 3.1 VarFlag 1 R Vmag H
RAdeg 274.407 DEdeg -36.7613 AstroRef Plx 21.87
CCDM 18176-3646 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 167618 BD
CD CD-3612423 CP CP-36 8128 Dm number -3612423 VIred 2.24
SpType M2III R SpType Coord arcsec 2000 181737.73-364540.6
Hipparcos 2
HIP 89642 Sn 5 So 0 Nc 1
RArad 4.7893092322 DErad -0.6416053924 Plx 22.35 PmRA -129.56
PmDE -166.26 E RArad 0.21 E DErad 0.16 E Plx 0.24
E pmRA 0.28 E pmDE 0.16 Hpmag 3.1512 E Hpmag 0.0026
SHp 0.013 VA 2 BV 1.582 E BV 0.004
VI 2.24
CCDM
Ccdm 18176-3646 RComp Comp A Note1
Note2 Discov num DRAs 1.67 DDEs 17.4
R dRAs 41 Year Theta Rho
Obs 4 Vmag 3.2 Sp M4 PmNote *
PmRA -128 PmDE -166 Dm number -3612423 Cat1 CD
Name2 Cat2 HD 167618 M HD
ADS BDS B 8449 M ADS BDS N IDS IDS 18109S3647A
HIC 89642
 
 
18176-3646 B
 
 
Coord arcsec 2000 181737.95-364541.8 Mag 8 Calc delta mag 4.7 Calc coord yes
CCDM
Ccdm 18176-3646 RComp Comp B Note1
Note2 Discov num BU 760 DRAs DDEs
R dRAs Year 1879 Theta 105 Rho 3.6
Obs 16 Vmag 7.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 8449 M ADS BDS N IDS IDS 18109S3647B
HIC 89642
 
 
18176-3646 C
 
 
Coord arcsec 2000 181736.51-364519.0 Mag 13.1 Calc delta mag 9.8 Calc coord yes
CCDM
Ccdm 18176-3646 RComp Comp C Note1
Note2 Discov num BU 760 DRAs -0.02 DDEs 37.4
R dRAs 41 Year 1896 Theta 276 Rho 33.3
Obs 1 Vmag 13.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 8449 M ADS BDS N IDS IDS 18109S3647C
HIC
 
 
18176-3646 D
 
 
Coord arcsec 2000 181733.56-364430.7 Mag 10.04 PmRA -2.00 PmDE -6.0
Calc delta mag 6.74 Calc coord yes
CCDM
Ccdm 18176-3646 RComp Comp D Note1
Note2 Discov num BU 760 DRAs -3.72 DDEs 85.1
R dRAs 41 Year 1879 Theta 303 Rho 93.2
Obs 3 Vmag 10.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 8449 M ADS BDS N IDS IDS 18109S3647D
HIC