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Doubles in session


Current system
20043-4724
I 661
HD 189857


Nearby doubles
29' : 20014-4724
I 256

31' : 20060-4659
DAW 26AB

41' : 20062-4649
HJ 5166

45' : 20018-4647
UC 4067

62' : 20008-4634
RST1054

66' : 20093-4643
SIN 114

69' : 20095-4641
HJ 5169

71' : 20052-4834
HDS2864

77' : 20107-4644
I 123

77' : 19581-4808
HDS2842

79' : 20010-4614
HJ 5160

80' : 20109-4806
UC 4114

80' : 20086-4618
CPO 88AB

80' : 20119-4704
HJ 5172

83' : 19590-4622
HJ 5157

90' : 20022-4556
HDS2854

92' : 20023-4554
I 660

96' : 20041-4547
CPO 87

97' : 20106-4612
RSS 542

102' : 20039-4543
DAM 629

104' : 20091-4856
RST1060

109' : 20139-4812
TDT2107

115' : 20071-4533
UC 4089

117' : 19572-4856
TOI1060

117' : 19564-4850
BRT1103

118' : 19529-4744
TDT1823



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.

20043-4724 I 661 (HD 189857)

 
 
20h 04m 15.57s -47° 23' 45.3" P.A. 39.00 sep 0.6 mag 10.19,10.22 Sp F8V dist. 174.52 pc (569.28 l.y.)
 
 
Coord 2000 20043-4724 Discov num I   661 Comp Coord arcsec 2000 20 04 15.57 -47 23 45.3
Date first 1909 Date last 1991 Obs 9
Pa first 40 Pa last 39.2 P.A. Now (θ) 39.2°
Sep first 0.5 Sep last 0.56 Sep. Now (ρ) 0.56"
Mag pri 10.19 Mag sec 10.22 delta mag (ΔM) 0.03 Spectral class F8V (yellow-white)
Pri motion ra +025 Sec motion ra +025
Pri motion dec -006 Sec motion dec -006
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 189857 Constellation Telescopium SAO 230021 HIP 98837
Tycho2 8396-02262-1 Gaia DR2 6670871598452487168 HD 189857 CD CD-4713226
CP CP-47 9424 Distance 174.52 Distance ly 569.28
 
 
WDS 20043-4724 I 661 (HD 189857) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
I__1895 Ma - Innes, R.T.A. 1895MNRAS..55..312I
I__1895 +Mb MNRAS 55, 312,544, 1895
I__1896 Mb - Innes, R.T.A. 1896JBAA....6..261I
I__1896 J. British Astron. Assoc. 6, 261, 1896
I__1897a Ma - Innes, R.T.A. 1897MNRAS..57..533I
I__1897a MNRAS 57, 533, 1897 (data also in I__1897b, 1897AN....143..171I
I__1897a I__1897c) 1897AN....144...89I
I__1897b Ma - Innes, R.T.A. 1897AN....143..171I
I__1897b AN 143, 171, 1897
I__1897c Ma - Innes, R.T.A. 1897AN....144...89I
I__1897c AN 144, 89, 1897
I__1897d Ma - Innes, R.T.A. 1897AN....145...93I
I__1897d AN 145, 93, 1897
I__1897e Ma - Innes, R.T.A. 1897MNRAS..57..456I
I__1897e +Mb MNRAS 57, 456, 1897
I__1897f Ma - Innes, R.T.A. 1897MNRAS..58...48I
I__1897f MNRAS 58, 48, 1897
I__1897g Ma - Innes, R.T.A. 1897AJ.....18...65I
I__1897g AJ 18, 65, 1897
I__1898 Ma - Innes, R.T.A. 1898AN....146..369I
I__1898 AN 146, 369, 1898
I__1899 Ma - Innes, R.T.A. 1899QB4.C22v2......
I__1899 Ann. Cape Obs. 2, Pt.2, 1899 (Innes Reference Catalog)
I__1901 Ma - Innes, R.T.A. 1901MNRAS..61..575.
I__1901 MNRAS 61, 575, 1901 (data also in I__1905) 1905AnCap...2....4I
I__1902a Ma - Innes, R.T.A. 1902MNRAS..62..470I
I__1902a MNRAS 62, 470, 1902 (data also in I__1905) 1905AnCap...2....4I
I__1902b Ma - Innes, R.T.A. 1902MNRAS..63...76I
I__1902b MNRAS 63, 76, 1902 (some data also in I__1905) 1905AnCap...2....4I
I__1903 - Innes, R.T.A. 1903MNRAS..64..130I
I__1903 MNRAS 64, 130, 1903 (data also in I__1905) 1905AnCap...2....4I
I__1903b Ma - Innes, R.T.A. 1903Obs....26..285I
I__1903b Obs 26, 285, 1903 (some data also in I__1905) 1905AnCap...2....4I
I__1905 Ma - Innes, R.T.A. 1905AnCap...2....4I
I__1905 Ann. Cape Obs. 2, Pt.4, 1905
I__1907 Ma - Innes, R.T.A. 1907Obs....30...61I
I__1907 Obs 30, 61, 1907
I__1908 - Innes, R.T.A. 1908Obs....31..289I
I__1908 Obs 31, 289, 1908 (measures also in I__1909)
I__1909 Ma - Innes, R.T.A. .
I__1909 Transvaal Obs. Circ. 1, 1, 1909
I__1910 Ma - Innes, R.T.A. .
I__1910 Transvaal Obs. Circ. 1, 21, 1910
I__1911 Ma - Innes, R.T.A. .
I__1911 Transvaal Obs. Circ. 1, 61, 1911
I__1912 Ma - Innes, R.T.A. .
I__1912 Transvaal Obs. Circ. 1, 111, 1912
I__1913a Ma - Innes, R.T.A. 1913CiUO....4...31.
I__1913a Union Obs. Johannesburg Circ. 4, 31, 1913
I__1913b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1913CiUO....4...31.
I__1913b Union Obs. Johannesburg Circ. 4, 31, 1913
I__1914 Ma - Innes, R.T.A. 1914CiUO...14...97.
I__1914 Union Obs. Johannesburg Circ. 14, 97, 1914
I__1915a Ma - Innes, R.T.A. 1915CiUO...24..185.
I__1915a Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915b Ma - Innes, R.T.A. (measure by Cox, G.W.) 1915CiUO...24..185.
I__1915b Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915c Ma - Innes, R.T.A. (measure by Johnson, E.L.) 1915CiUO...24..185.
I__1915c Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915d Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1915CiUO...24..185.
I__1915d Union Obs. Johannesburg Circ. 24, 185, 1915
I__1915e - Innes, R.T.A. 1915Obs....38..221I
I__1915e Obs 38, 221, 1915 (measures also in I__1916) 1916CiUO...33..249I
I__1915f - Innes, R.T.A. 1915Obs....38..333I
I__1915f Obs 38, 333, 1915 (measures also in I__1915) 1915CiUO...24..185I
I__1916a Ma - Innes, R.T.A. 1916CiUO...33..249I
I__1916a Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1916CiUO...33..249I
I__1916b Union Obs. Johannesburg Circ. 33, 249, 1916
I__1916c Ma - Innes, R.T.A. (measure by van der Spuy, K.) 1916CiUO...33..249I
I__1916c Union Obs. Johannesburg Circ. 33, 249, 1916
I__1917a Ma - Innes, R.T.A. 1917CiUO...37..285I
I__1917a Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917b Ma - Innes, R.T.A. (measure by Johnson, E.L.) 1917CiUO...37..285I
I__1917b Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917c Ma - Innes, R.T.A. (measure by van der Spuy, K.) 1917CiUO...37..285I
I__1917c Union Obs. Johannesburg Circ. 37, 285, 1917
I__1917d Ma - Innes, R.T.A. (measure by Worssell, W.M.) 1917CiUO...37..285I
I__1917d Union Obs. Johannesburg Circ. 37, 285, 1917
I__1918 Ma - Innes, R.T.A. 1918CiUO...41..339I
I__1918 Union Obs. Johannesburg Circ. 41, 339, 1918
I__1927a Ma - Innes, R.T.A. 1927sdsc.book.....I
I__1927a +Po Southern Double Star Cat. 1927
I__1927b Ma - Innes, R.T.A. & van den Bos, W.H. 1927sdsc.book.....I
I__1927b Southern Double Star Cat. 1927
I__1932A Ma - Innes, R.T.A. 1932QB821.A43......
I__1932A cited in ADS (Aitken Double Star Cat.), 1932
I__1948a Ma - Innes, R.T.A. 1948CiUO..106..193I
I__1948a +Po Union Obs. Johannesburg Circ. 106, 193, 1948
I__1948b Ma - Innes, R.T.A. (measure by Simpkins, R.P.) 1948CiUO..106..193I
I__1948b Union Obs. Johannesburg Circ. 106, 193, 1948
I__9999 Ma - Innes, R.T.A. ...................
I__9999 +Mb Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20043-4724 I 661 1991 9 39 0.6 10.19 10.22 F8V D 200415.57-472345.3

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 20043-4724 I 661 (HD 189857) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20043-4724 I 661 (HD 189857) : MEASURES
 
 
No records found.

 
 
WDS 20043-4724 (HD 189857) : VIRTUAL EYEPIECE
 
 

20043-4724 I 661A mag 10.19 Sp F8V 20043-4724 I 661B sep 0.5 P.A. 28.90 mag 10.22 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20043-4724 (HD 189857) : ALADIN DSS IMAGE @ 20h 04m 15.57s -47° 23' 45.3"
 
 
 
 
WDS 20043-4724 I 661 (HD 189857) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20043-4724 I 661 distance=0' 20014-4724 I 256 distance=29' 20060-4659 DAW 26BC distance=31' 20060-4659 DAW 26AB distance=31' 20060-4659 DAW 26AC distance=31' 20062-4649 HJ 5166 distance=41' 20018-4647 UC 4067 distance=45' 20008-4634 RST1054 distance=62' 20093-4643 SIN 114 distance=66' 20095-4641 HJ 5169 distance=69' 20052-4834 HDS2864 distance=71' 20107-4644 I 123 distance=77' 19581-4808 HDS2842 distance=77' 20010-4614 HJ 5160 distance=79' 20109-4806 UC 4114 distance=80' 20086-4618 CPO 88AB distance=80' 20086-4618 UC 4098AC distance=80' 20086-4618 UC 4100BD distance=80' 20119-4704 HJ 5172 distance=80' 19590-4622 HJ 5157 distance=83' 20022-4556 HDS2854 distance=90' 20023-4554 I 660 distance=92' 20041-4547 CPO 87 distance=96' 20106-4612 RSS 542 distance=97' 20039-4543 DAM 629 distance=102' 20091-4856 RST1060 distance=104' 20139-4812 TDT2107 distance=109' 20071-4533 UC 4089 distance=115' 19572-4856 TOI1060 distance=117' 19564-4850 BRT1103 distance=117' 19529-4744 TDT1823 distance=118' 20100-4914 KPP1803 distance=125' 19520-4642 TDT1811 distance=132' 19567-4537 TDT1867 distance=133' 20097-4522 SKF1162BC distance=135' 20097-4522 RSS 35AB distance=135' 20174-4750 UC 4139 distance=136' 20163-4826 LDS 707 distance=138' 20152-4603 HJ 5179 distance=139' 20135-4539 UC 4123 distance=142' 20110-4519 BRT1105 distance=143' 20045-4457 HDS2862 distance=147' 20177-4834 BRT1106 distance=153' 20192-4757 RST1066 distance=155' 20166-4554 I 125 distance=156' 19537-4531 BRT1102 distance=157' 20195-4702 TSN 10 distance=157' 20090-4452 B 986 distance=160' 20026-5003 HDS2857 distance=161' 19596-4958 CPO9292 distance=161' 20177-4557 HJ 5184 distance=164' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 20043-4724 I 661 39 0.6
Show 20014-4724 I 256 189 0.8 29
Show 20060-4659 DAW 26 BC 310 3.2 31
Show 20060-4659 DAW 26 AB 189 4.3 31
Show 20060-4659 DAW 26 AC 235 3.8 31
Show 20062-4649 HJ 5166 249 11.3 41
Show 20018-4647 UC 4067 339 13.5 45
Show 20008-4634 RST1054 2 0.3 62
Show 20093-4643 SIN 114 110 59.8 66
Show 20095-4641 HJ 5169 128 6.0 69
Show 20052-4834 HDS2864 339 0.2 71
Show 20107-4644 I 123 210 6.3 77
Show 19581-4808 HDS2842 76 0.3 77
Show 20010-4614 HJ 5160 164 26.7 79
Show 20109-4806 UC 4114 8 13.9 80
Show 20086-4618 CPO 88 AB 101 57.4 80
Show 20086-4618 UC 4098 AC 216 23.3 80
Show 20086-4618 UC 4100 BD 359 48.2 80
Show 20119-4704 HJ 5172 9 36.7 80
Show 19590-4622 HJ 5157 280 17.5 83
Show 20022-4556 HDS2854 327 0.1 90
Show 20023-4554 I 660 277 1.8 92
Show 20041-4547 CPO 87 5 28.0 96
Show 20106-4612 RSS 542 311 21.9 97
Show 20039-4543 DAM 629 238 10.5 102
Show 20091-4856 RST1060 151 0.2 104
Show 20139-4812 TDT2107 242 0.6 109
Show 20071-4533 UC 4089 300 14.1 115
Show 19572-4856 TOI1060 167 0.3 117
Show 19564-4850 BRT1103 206 4.4 117
Show 19529-4744 TDT1823 80 0.7 118
Show 20100-4914 KPP1803 353 14.0 125
Show 19520-4642 TDT1811 103 2.0 132
Show 19567-4537 TDT1867 229 0.6 133
Show 20097-4522 SKF1162 BC 44 37.6 135
Show 20097-4522 RSS 35 AB 127 47.5 135
Show 20174-4750 UC 4139 4 30.2 136
Show 20163-4826 LDS 707 25 18.3 138
Show 20152-4603 HJ 5179 136 5.8 139
Show 20135-4539 UC 4123 130 22.9 142
Show 20110-4519 BRT1105 55 2.8 143
Show 20045-4457 HDS2862 3 0.4 147
Show 20177-4834 BRT1106 73 4.5 153
Show 20192-4757 RST1066 184 0.5 155
Show 20166-4554 I 125 45 1.5 156
Show 19537-4531 BRT1102 218 5.0 157
Show 20195-4702 TSN 10 87 68.3 157
Show 20090-4452 B 986 105 2.1 160
Show 20026-5003 HDS2857 6 18.0 161
Show 19596-4958 CPO9292 300 4.3 161
Show 20177-4557 HJ 5184 285 12.3 164

 
 
WDS 20043-4724 : COMPONENTS
 
 
  A
B pa=28.9°
sep=0.50"
 
 
20043-4724 A
 
 
Componente originario normalizzato AB Name HD 189857 Coord arcsec 2000 200415.57-472345.3 Mag 10.19
Spectral class F8V (yellow-white) PmRA 25.00 PmDE -6.0 SAO 230021
HIP 98837 Tycho2 8396-02262-1 HD 189857 CD CD-4713226
CP CP-47 9424
Tycho2
Tycho2 8396-02262-1 Pflag RAmdeg 301.06493920 DEmdeg -47.39586886
PmRA 25.0 PmDE -5.9 E RAmdeg 15 E DEmdeg 17
E pmRA 1.5 E pmDE 1.2 EpRAm 1989.79 EpDEm 1985.73
Num 6 Q RAmdeg 1.3 Q DEmdeg 1.1 Q pmRA 1.3
Q pmDE 1.2 BTmag 10.220 E BTmag 0.031 VTmag 9.581
E VTmag 0.024 Prox 999 TYC T HIP 98837
CCDM AB RAdeg 301.06485306 DEdeg -47.39585389 EpRA 1990 1.66
EpDE 1990 1.48 E RAdeg 15.1 E DEdeg 19.2 Posflg P
Corr 0.1
SAO
SAO 230021 DelFlag RA1950 PmRA1950 0.002
DE1950 PmDE1950 -0.001 Vmag 9.3 SpType F8
Double code Source 48 CatNum 18577 DM CP-47 9424
DMcomp BDsup HD 189857 M HD 0
GC RA1950rad 5.23881841 DE1950rad -0.82968473 PmRA2000 0.0019
PmDE2000 -0.004
Hipparcos
Catalog H HIP 98837 Proxy H RAhms 20 04 15.55
DEdms -47 23 45.3 Vmag 9.34 VarFlag R Vmag H
RAdeg 301.065 DEdeg -47.3959 AstroRef A Plx 6.27
CCDM 20043-4724 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 41 Rho 0.659 HD 189857 BD
CD CD-4713226 CP CP-47 9424 Dm number -4713226 VIred 0.64
SpType F8V R SpType Coord arcsec 2000 200415.55-472345.3
Hipparcos 2
HIP 98837 Sn 15 So 3 Nc 2
RArad 5.2545720521 DErad -0.8272145812 Plx 5.73 PmRA 17.78
PmDE -8.91 E RArad 2.06 E DErad 1.72 E Plx 2.32
E pmRA 3.44 E pmDE 3.64 Hpmag 9.4613 E Hpmag 0.0025
SHp 0.022 VA 0 BV 0.564 E BV 0.005
VI 0.64
CCDM
Ccdm 20043-4724 RComp Comp A Note1
Note2 Discov num DRAs -2.52 DDEs 15.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.9 Sp F8 PmNote *
PmRA 20 PmDE -1 Dm number -4713226 Cat1 CD
Name2 230021 Cat2 SAO HD 189857 M HD
ADS BDS M ADS BDS N IDS IDS 19570S4741A
HIC 98837
 
 
20043-4724 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 200415.59-472344.9 Mag 10.22 PmRA 25.00
PmDE -6.0 Calc delta mag 0.03 Calc coord yes
CCDM
Ccdm 20043-4724 RComp Comp B Note1
Note2 Discov num I 661 DRAs DDEs
R dRAs Year 1932 Theta 037 Rho 0.6
Obs 3 Vmag 10.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 19570S4741B
HIC 98837