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Doubles in session


Current system
18301+0404
STF 2322 AD


Nearby doubles
15' : 18305+0416
A 583

16' : 18291+0408
A 581AB

26' : 18284+0407
J 521

29' : 18307+0431
STTA170

32' : 18280+0400
BAL2494

39' : 18278+0344
ARY 58

43' : 18272+0404
FAR 20

53' : 18286+0451
STTA168AB

54' : 18334+0341
HJ 861

58' : 18267+0337
BAL2493

59' : 18337+0426
GWP2786

65' : 18258+0409
RAO 607

65' : 18258+0359
J 462

65' : 18344+0405
TDT 940

65' : 18342+0341
ABT9001

66' : 18262+0435
TDT 866

72' : 18295+0253
BAL1967AB

73' : 18289+0514
CLV 1

73' : 18289+0515
LDS5237

77' : 18322+0514
GWP2781

80' : 18270+0258
LDS5864

81' : 18248+0350
BAL2491

89' : 18264+0255
HEI 560

89' : 18243+0347
BAL2490

92' : 18249+0454
J 2129AB

97' : 18283+0537
TDT 897



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 18301+0404 : COMPONENTS
 
 
  A Ab B C
Ab pa=285.1°
sep=0.11"
 
B pa=171.8°
sep=19.81"
pa=171.5°
sep=19.85"
 
C pa=295.0°
sep=67.08"
pa=295.0°
sep=66.98"
pa=307.0°
sep=79.66"
 
D pa=196.8°
sep=85.32"
pa=196.7°
sep=85.32"
pa=203.8°
sep=67.88"
pa=161.8°
sep=115.81"
 
 
18301+0404 A
 
 
Name HD 170580 Coord arcsec 2000 183005.12+040355.3 Mag 6.67 Spectral class B2V (blue-white)
PmRA -1.00 PmDE -7.0 SAO 123571 HIP 90676
Tycho2 0454-01662-1 HD 170580 HR 6941 GC 25256
BD BD+03 3727 FK5 3469
Tycho2
Tycho2 0454-01662-1 Pflag RAmdeg 277.52133671 DEmdeg 4.06535588
PmRA 0.9 PmDE -4.8 E RAmdeg 4 E DEmdeg 4
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.51 EpDEm 1991.40
Num 19 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 0.9
Q pmDE 0.9 BTmag 6.765 E BTmag 0.015 VTmag 6.683
E VTmag 0.010 Prox 999 TYC T HIP 90676
CCDM RAdeg 277.52133500 DEdeg 4.06536722 EpRA 1990 1.78
EpDE 1990 1.65 E RAdeg 3.7 E DEdeg 4.0 Posflg
Corr -0.2
SAO
SAO 123571 DelFlag RA1950 PmRA1950 -0.0006
DE1950 PmDE1950 -0.017 Vmag 6.5 SpType B5
Double code Source 70 CatNum 25256 DM BD+03 3727
DMcomp BDsup HD 170580 M HD 0
GC 25256 RA1950rad 4.83281608 DE1950rad 0.07034187 PmRA2000 -0.0004
PmDE2000 -0.018
Hipparcos
Catalog H HIP 90676 Proxy RAhms 18 30 05.12
DEdms +04 03 55.3 Vmag 6.66 VarFlag R Vmag H
RAdeg 277.521 DEdeg 4.06537 AstroRef Plx 1.17
CCDM 18301+0404 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 170580 BD BD+03 3727
CD CP Dm number +03 3727 VIred 0.12
SpType B2V R SpType Coord arcsec 2000 183005.12+040355.3
Hipparcos 2
HIP 90676 Sn 5 So 0 Nc 1
RArad 4.843661029 DErad 0.0709540471 Plx 1.97 PmRA -0.61
PmDE -6.46 E RArad 0.31 E DErad 0.25 E Plx 0.37
E pmRA 0.41 E pmDE 0.35 Hpmag 6.7078 E Hpmag 0.0011
SHp 0.007 VA 0 BV 0.11 E BV 0
VI 0.12
CCDM
Ccdm 18301+0404 RComp Comp A Note1
Note2 Discov num DRAs -0.86 DDEs -4.9
R dRAs 10 Year Theta Rho
Obs 4 Vmag 6.5 Sp B5 PmNote *
PmRA 2 PmDE -7 Dm number +03 3727 Cat1 BD
Name2 +04 2340 Cat2 AGK2/3 HD 170580 M HD
ADS BDS A11399 M ADS BDS N IDS IDS 18251N0400A
HIC 90676
 
 
18301+0404 Ab
 
 
Coord arcsec 2000 183005.11+040355.3 Mag 9.6 Calc delta mag 2.9 Calc coord yes
 
 
18301+0404 B
 
 
Coord arcsec 2000 183005.31+040335.7 Mag 11.28 PmRA -2.00 PmDE -12.0
Calc delta mag 4.58 Calc coord yes
CCDM
Ccdm 18301+0404 RComp Comp B Note1
Note2 Discov num STF2322 DRAs -0.71 DDEs -23.7
R dRAs 10 Year 1828 Theta 168 Rho 20.1
Obs 12 Vmag 11.8 Sp PmNote *
PmRA -27 PmDE 7 Dm number Cat1
Name2 +04 2341 Cat2 AGK2/3 HD M HD
ADS BDS A11399 M ADS BDS N IDS IDS 18251N0400B
HIC
 
 
18301+0404 C
 
 
Coord arcsec 2000 183001.06+040423.6 Mag 12.79 PmRA -5.00 PmDE -4.0
Calc delta mag 6.09 Calc coord yes
CCDM
Ccdm 18301+0404 RComp Comp C Note1
Note2 Discov num STF2322 DRAs DDEs
R dRAs Year 1912 Theta 070 Rho 66.9
Obs 1 Vmag 12.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11399 M ADS BDS N IDS IDS 18251N0400C
HIC
 
 
18301+0404 D
 
 
Coord arcsec 2000 183003.48+040233.6 Mag 13.39 PmRA -3.00 PmDE -3.0
Calc delta mag 6.69 Calc coord yes
CCDM
Ccdm 18301+0404 RComp Comp D Note1
Note2 Discov num STF2322 DRAs DDEs
R dRAs Year 1912 Theta 194 Rho 85.2
Obs 1 Vmag 12.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11399 M ADS BDS N IDS IDS 18251N0400D
HIC