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Current system
20001+1737
HO 638 AE


Nearby doubles
3' : 20000+1736
SMR 7

4' : 20002+1733
SLE 675

7' : 20001+1731
H 4 100AB

12' : 20006+1727
BPM1923

18' : 20004+1720
SLE 676

18' : 19596+1720
BPM1912

19' : 20010+1751
BPM1925

21' : 20003+1757
HU 352AB

22' : 19586+1734
TDT1892

25' : 20017+1746
BPM1935

26' : 20017+1748
SLE 677

27' : 19591+1758
BRT1331

32' : 20017+1759
BPM1934

33' : 19582+1719
BPM1889

34' : 20024+1744
BPM1947AB

35' : 19594+1809
BPM1909

35' : 19584+1713
BPM1890

38' : 19575+1739
BPM1867

40' : 20028+1747
BPM1953

40' : 20020+1707
BPM1941

40' : 20009+1815
J 502AB

40' : 20006+1657
BPM1921

42' : 19573+1729
BPMA219

42' : 19579+1804
BPM1877

44' : 20020+1702
BPM1942

46' : 20033+1736
BPM1962



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.
 
 
WDS 20001+1737 : COMPONENTS
 
 
  A B C D
B pa=14.4°
sep=113.26"
 
C pa=338.5°
sep=78.08"
pa=236.9°
sep=67.85"
 
D pa=197.4°
sep=40.90"
pa=195.2°
sep=154.12"
pa=171.6°
sep=112.85"
 
E pa=283.2°
sep=2.57"
pa=195.7°
sep=113.34"
pa=160.0°
sep=76.64"
pa=13.8°
sep=40.79"
 
 
20001+1737 A
 
 
Name HD 189576 Coord arcsec 2000 200008.28+173638.6 Mag 7.16 Spectral class K0 (yellow-orange)
PmRA 5.00 PmDE 11.0 HIP 98443 Tycho2 1621-01879-1
BD BD+17 4185
Tycho2
Tycho2 1621-01879-1 Pflag RAmdeg 300.03454429 DEmdeg 17.61074322
PmRA 3.6 PmDE 7.7 E RAmdeg 5 E DEmdeg 5
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.08 EpDEm 1991.05
Num 15 Q RAmdeg 1.2 Q DEmdeg 0.6 Q pmRA 1.1
Q pmDE 0.7 BTmag 8.958 E BTmag 0.018 VTmag 7.162
E VTmag 0.010 Prox 788 TYC T HIP 98443
CCDM RAdeg 300.03453556 DEdeg 17.61072528 EpRA 1990 1.61
EpDE 1990 1.56 E RAdeg 4.9 E DEdeg 5.1 Posflg
Corr 0.1
Hipparcos
Catalog H HIP 98443 Proxy RAhms 20 00 08.29
DEdms +17 36 38.6 Vmag 6.98 VarFlag 1 R Vmag H
RAdeg 300.035 DEdeg 17.6107 AstroRef Plx 2.56
CCDM 20001+1737 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 189576 BD BD+17 4185
CD CP Dm number +17 4185 VIred 1.56
SpType K0 R SpType Coord arcsec 2000 200008.29+173638.6
Hipparcos 2
HIP 98443 Sn 5 So 0 Nc 1
RArad 5.2365905318 DErad 0.3073651342 Plx 1.5 PmRA 5.14
PmDE 10.95 E RArad 0.33 E DErad 0.37 E Plx 0.52
E pmRA 0.48 E pmDE 0.54 Hpmag 7.1019 E Hpmag 0.0011
SHp 0.014 VA 0 BV 1.523 E BV 0.011
VI 1.56
CCDM
Ccdm 20001+1737 RComp Comp A Note1
Note2 Discov num DRAs 2.35 DDEs -21.1
R dRAs 10 Year Theta Rho
Obs 6 Vmag 7.1 Sp K0 PmNote *
PmRA 17 PmDE 11 Dm number +17 4185 Cat1 BD
Name2 +17 2115 Cat2 AGK2/3 HD 189576 M HD
ADS BDS B 9799 M ADS BDS N IDS IDS 19556N1720A
HIC 98443
 
 
20001+1737 B
 
 
Coord arcsec 2000 200010.25+173828.3 Coord calc 200010.25+173828.3 Mag 8.45 Spectral class F5 (yellow-white)
PmRA -12.00 PmDE -6.0 SAO 105525 Tycho2 1621-01662-1
HD 189575 DM BD+17 4187 Calc delta mag 1.29
Tycho2
Tycho2 1621-01662-1 Pflag RAmdeg 300.04271924 DEmdeg 17.64120517
PmRA -15.2 PmDE -6.7 E RAmdeg 7 E DEmdeg 8
E pmRA 1.1 E pmDE 1.0 EpRAm 1990.96 EpDEm 1990.57
Num 9 Q RAmdeg 1.3 Q DEmdeg 0.9 Q pmRA 1.4
Q pmDE 1.0 BTmag 8.938 E BTmag 0.017 VTmag 8.449
E VTmag 0.014 Prox 688 TYC T HIP
CCDM RAdeg 300.04275639 DEdeg 17.64122083 EpRA 1990 1.67
EpDE 1990 1.55 E RAdeg 6.8 E DEdeg 7.5 Posflg
Corr 0.1
SAO
SAO 105525 DelFlag RA1950 PmRA1950 -0.0011
DE1950 PmDE1950 -0.02 Vmag 8.4 SpType F5
Double code Source 28 CatNum 7844 DM BD+17 4187
DMcomp BDsup HD 189575 M HD 0
GC RA1950rad 5.22688991 DE1950rad 0.30548669 PmRA2000 -0.001
PmDE2000 -0.022
CCDM
Ccdm 20001+1737 RComp Comp B Note1
Note2 Discov num S 730 DRAs 4.24 DDEs 88.7
R dRAs 10 Year 1825 Theta 015 Rho 114.6
Obs 5 Vmag 8.7 Sp F5 PmNote *
PmRA -19 PmDE 1 Dm number +17 4187 Cat1 BD
Name2 +17 2118 Cat2 AGK2/3 HD 189575 M HD
ADS BDS B 9799 M ADS BDS N IDS IDS 19556N1720B
HIC
 
 
20001+1737 C
 
 
Coord arcsec 2000 200006.27+173751.2 Mag 10.21 PmRA 0.00 PmDE -4.0
Tycho2 1621-02118-1 HD 351105 Calc delta mag 3.05 Calc coord yes
Tycho2
Tycho2 1621-02118-1 Pflag RAmdeg 300.02581163 DEmdeg 17.63097707
PmRA -0.4 PmDE -3.5 E RAmdeg 19 E DEmdeg 19
E pmRA 1.1 E pmDE 1.1 EpRAm 1986.37 EpDEm 1986.54
Num 7 Q RAmdeg 0.8 Q DEmdeg 1.1 Q pmRA 0.8
Q pmDE 1.1 BTmag 10.268 E BTmag 0.030 VTmag 10.213
E VTmag 0.041 Prox 688 TYC T HIP
CCDM RAdeg 300.02581306 DEdeg 17.63098472 EpRA 1990 1.63
EpDE 1990 1.59 E RAdeg 21.2 E DEdeg 20.7 Posflg
Corr -0.1
CCDM
Ccdm 20001+1737 RComp Comp C Note1
Note2 Discov num S 730 DRAs 0.15 DDEs 50.6
R dRAs 10 Year 1879 Theta 338 Rho 79.9
Obs 2 Vmag 9.5 Sp PmNote *
PmRA -11 PmDE -17 Dm number Cat1
Name2 +17 2114 Cat2 AGK2/3 HD M HD
ADS BDS B 9799 M ADS BDS N IDS IDS 19556N1720C
HIC
 
 
20001+1737 D
 
 
Coord arcsec 2000 200007.42+173559.6 Mag 9.9 PmRA 0.00 PmDE -7.0
Calc delta mag 2.74 Calc coord yes
CCDM
Ccdm 20001+1737 RComp Comp D Note1
Note2 Discov num S 730 DRAs 1.40 DDEs -59.8
R dRAs 65 Year 1879 Theta 198 Rho 39.8
Obs 2 Vmag 9.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 9799 M ADS BDS N IDS IDS 19556N1720D
HIC
 
 
20001+1737 E
 
 
Coord arcsec 2000 200008.10+173639.2 Mag 10.2 Calc delta mag 3.04 Calc coord yes
CCDM
Ccdm 20001+1737 RComp Comp E Note1
Note2 Discov num DRAs -7.23 DDEs -65.0
R dRAs 10 Year Theta Rho
Obs Vmag 8.8 Sp PmNote *
PmRA -3 PmDE 11 Dm number Cat1
Name2 +17 2112 Cat2 AGK2/3 HD M HD
ADS BDS A13225 M ADS BDS N IDS IDS 19555N1720A
HIC