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Doubles in session


Current system
20047-5144
I 1604
HD 189875


Nearby doubles
30' : 20073-5127
RST1059

31' : 20045-5214
RST1056

42' : 20029-5222
TDT1935

54' : 20097-5212
CPO 615

55' : 20071-5055
BRT1104

59' : 19590-5121
RST1053

61' : 19583-5154
DUN 229AB

62' : 20053-5043
UC 4079

66' : 19590-5106
I 1407

67' : 20022-5246
UC 4069

73' : 20025-5253
HDS2856

82' : 20096-5038
RST1062

83' : 19563-5118
SKF1094

87' : 20093-5029
RST1061

90' : 20135-5222
B 2884

90' : 19587-5034
B 983

91' : 20095-5026
HU 1612

91' : 19550-5149
FIN 31

95' : 19547-5204
BRT2102

99' : 19544-5211
RST1051

103' : 20022-5324
UC 4070

103' : 20026-5003
HDS2857

113' : 20108-5321
TDT2054

113' : 20151-5048
RSS 544

115' : 20127-5019
HJ 5174

116' : 20075-5337
UC 4091



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20047-5144 I 1604 (HD 189875)

 
 
20h 04m 41.97s -51° 44' 09.1" P.A. 204.00 sep 1.1 mag 9.57,10.99 Sp A3
 
 
Coord 2000 20047-5144 Discov num I  1604 Comp Coord arcsec 2000 20 04 41.97 -51 44 09.1
Date first 1927 Date last 2016 Obs 6
Pa first 202 Pa last 204.3 P.A. Now (θ) 204.3°
Sep first 1.1 Sep last 1.086 Sep. Now (ρ) 1.086"
Mag pri 9.57 Mag sec 10.99 delta mag (ΔM) 1.42 Spectral class A3 (white)
Pri motion ra +009 Sec motion ra +009
Pri motion dec -011 Sec motion dec -011
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 189875 Constellation Telescopium SAO 246421 Tycho2 8404-00138-1
Gaia DR2 6665865350213945984 HD 189875
 
 
WDS 20047-5144 I 1604 (HD 189875) : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
idgroup discov author
1 I Innes, R.T.A.
5 I MNRAS 57, 533, 1897 (data also in I__1897b,
5 I I__1897c)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20047-5144 I 1604 1991 5 204 1.0 9.57 10.99 A3 200441.97-514409.1
20047-5144 I 1604 2016 6 204 1.1 9.57 10.99 A3 200441.97-514409.1

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

 
 
WDS 20047-5144 I 1604 (HD 189875) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20047-5144 I 1604 (HD 189875) : MEASURES
 
 
No records found.

 
 
WDS 20047-5144 (HD 189875) : VIRTUAL EYEPIECE
 
 

20047-5144 I 1604A mag 9.57 Sp A3 20047-5144 I 1604B sep 1.0 P.A. 195.60 mag 10.99 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20047-5144 (HD 189875) : ALADIN DSS IMAGE @ 20h 04m 41.97s -51° 44' 09.1"
 
 
 
 
WDS 20047-5144 I 1604 (HD 189875) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20047-5144 I 1604 distance=0' 20073-5127 RST1059 distance=30' 20045-5214 RST1056 distance=31' 20029-5222 TDT1935 distance=42' 20097-5212 CPO 615 distance=54' 20071-5055 BRT1104 distance=55' 19590-5121 RST1053 distance=59' 19590-5208 HU 1610DE distance=59' 19583-5154 DUN 229AB distance=61' 20053-5043 UC 4079 distance=62' 19590-5106 I 1407 distance=66' 20022-5246 UC 4069 distance=67' 20025-5253 HDS2856 distance=73' 20096-5038 RST1062 distance=82' 19563-5118 SKF1094 distance=83' 20093-5029 RST1061 distance=87' 20135-5222 B 2884 distance=90' 19587-5034 B 983 distance=90' 20095-5026 HU 1612 distance=91' 19550-5149 FIN 31 distance=91' 19547-5204 BRT2102 distance=95' 19544-5211 RST1051 distance=99' 20022-5324 UC 4070 distance=103' 20026-5003 HDS2857 distance=103' 19563-5258 KPP3104BC distance=108' 20108-5321 TDT2054 distance=113' 20151-5048 RSS 544 distance=113' 20127-5019 HJ 5174 distance=115' 20075-5337 UC 4091 distance=116' 20124-5014 I 1046 distance=116' 19596-4958 CPO9292 distance=117' 20165-5233 HU 1614 distance=120' 20164-5236 UC 4132 distance=120' 19522-5115 I 1625AB distance=121' 19522-5115 HJ 5150AC distance=121' 20139-5019 HU 1613 distance=122' 19537-5038 TSN 32 distance=123' 20142-5007 VSP 55 distance=133' 20044-5400 B 462 distance=136' 20135-5336 RST1063 distance=138' 19539-5012 RST1050 distance=138' 20080-5400 UC 4094 distance=139' 19585-5352 TDT1891 distance=140' 19538-5009 HDS2835 distance=140' 20176-5034 HDS2896 distance=141' 20212-5147 HDS2907 distance=154' 19479-5131 TVB 311 distance=158' 20100-4914 KPP1803 distance=158' 19476-5211 TDS1012 distance=160' 19550-5359 LDS 692 distance=161' 19562-5406 HJ 5447 distance=162' 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 20047-5144 I 1604 204 1.1 0
Show 20073-5127 RST1059 243 0.1 30
Show 20045-5214 RST1056 321 2.3 31
Show 20029-5222 TDT1935 76 0.7 42
Show 20097-5212 CPO 615 247 6.9 54
Show 20071-5055 BRT1104 219 3.7 55
Show 19590-5121 RST1053 202 0.6 59
Show 19590-5208 HU 1610 DE 152 1.9 59
Show 19583-5154 DUN 229 AB 242 80.9 61
Show 20053-5043 UC 4079 78 11.2 62
Show 19590-5106 I 1407 119 5.7 66
Show 20022-5246 UC 4069 90 40.1 67
Show 20025-5253 HDS2856 90 0.6 73
Show 20096-5038 RST1062 351 0.4 82
Show 19563-5118 SKF1094 3 10.8 83
Show 20093-5029 RST1061 282 1.2 87
Show 20135-5222 B 2884 334 8.1 90
Show 19587-5034 B 983 330 1.2 90
Show 20095-5026 HU 1612 63 1.0 91
Show 19550-5149 FIN 31 49 2.1 91
Show 19547-5204 BRT2102 157 3.1 95
Show 19544-5211 RST1051 297 0.6 99
Show 20022-5324 UC 4070 345 43.6 103
Show 20026-5003 HDS2857 6 18.0 103
Show 19563-5258 KPP3104 BC 126 4.9 108
Show 20108-5321 TDT2054 352 0.5 113
Show 20151-5048 RSS 544 167 17.6 113
Show 20127-5019 HJ 5174 266 18.8 115
Show 20075-5337 UC 4091 356 19.4 116
Show 20124-5014 I 1046 51 1.2 116
Show 19596-4958 CPO9292 300 4.3 117
Show 20165-5233 HU 1614 64 1.3 120
Show 20164-5236 UC 4132 173 13.8 120
Show 19522-5115 I 1625 AB 250 12.8 121
Show 19522-5115 HJ 5150 AC 254 27.8 121
Show 20139-5019 HU 1613 142 0.7 122
Show 19537-5038 TSN 32 189 82.4 123
Show 20142-5007 VSP 55 96 0.1 133
Show 20044-5400 B 462 23 1.8 136
Show 20135-5336 RST1063 178 6.0 138
Show 19539-5012 RST1050 214 0.5 138
Show 20080-5400 UC 4094 341 32.4 139
Show 19585-5352 TDT1891 206 2.1 140
Show 19538-5009 HDS2835 23 0.2 140
Show 20176-5034 HDS2896 70 12.8 141
Show 20212-5147 HDS2907 35 0.3 154
Show 19479-5131 TVB 311 267 7.0 158
Show 20100-4914 KPP1803 353 14.0 158
Show 19476-5211 TDS1012 175 0.8 160
Show 19550-5359 LDS 692 67 25.2 161
Show 19562-5406 HJ 5447 266 11.3 162

 
 
WDS 20047-5144 : COMPONENTS
 
 
  A
B pa=195.6°
sep=1.03"
 
 
20047-5144 A
 
 
Name HD 189875 Coord arcsec 2000 200441.97-514409.1 Mag 9.57 Spectral class A3 (white)
PmRA 9.00 PmDE -11.0 SAO 246421 Tycho2 8404-00138-1
HD 189875 DM CP-5211613
Tycho2
Tycho2 8404-00138-1 Pflag P RAmdeg 301.17486726 DEmdeg -51.73585723
PmRA 8.9 PmDE -10.6 E RAmdeg 13 E DEmdeg 15
E pmRA 2.1 E pmDE 2.0 EpRAm 1990.58 EpDEm 1989.70
Num 7 Q RAmdeg 0.6 Q DEmdeg 0.7 Q pmRA 0.6
Q pmDE 0.7 BTmag 9.942 E BTmag 0.026 VTmag 9.571
E VTmag 0.023 Prox 10 TYC T HIP
CCDM RAdeg 301.17485778 DEdeg -51.73579583 EpRA 1990 1.66
EpDE 1990 1.43 E RAdeg 12.5 E DEdeg 16.2 Posflg D
Corr 0.0
SAO
SAO 246421 DelFlag RA1950 PmRA1950 0.0018
DE1950 PmDE1950 -0.002 Vmag 9.3 SpType A3
Double code Source 42 CatNum 7897 DM CP-5211613
DMcomp BDsup HD 189875 M HD 0
GC RA1950rad 5.23999424 DE1950rad -0.90544055 PmRA2000 0.0015
PmDE2000 -0.006
CCDM
Ccdm 20047-5144 RComp Comp A Note1
Note2 Discov num DRAs -0.02 DDEs -8.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.5 Sp A3 PmNote *
PmRA 17 PmDE -2 Dm number -5211613 Cat1 CPD
Name2 246421 Cat2 SAO HD 189875 M HD
ADS BDS M ADS BDS N IDS IDS 19571S5201A
HIC
 
 
20047-5144 B
 
 
Coord arcsec 2000 200441.94-514410.1 Mag 10.99 PmRA 9.00 PmDE -11.0
Tycho2 8404-00138-2 Calc delta mag 1.42 Calc coord yes
Tycho2
Tycho2 8404-00138-2 Pflag P RAmdeg 301.17486726 DEmdeg -51.73585723
PmRA 8.9 PmDE -10.6 E RAmdeg 13 E DEmdeg 15
E pmRA 2.1 E pmDE 2.0 EpRAm 1990.58 EpDEm 1989.70
Num 7 Q RAmdeg 0.6 Q DEmdeg 0.7 Q pmRA 0.6
Q pmDE 0.7 BTmag 11.287 E BTmag 0.065 VTmag 10.986
E VTmag 0.074 Prox 10 TYC HIP
CCDM RAdeg 301.17468472 DEdeg -51.73603861 EpRA 1990 1.65
EpDE 1990 1.42 E RAdeg 36.9 E DEdeg 47.8 Posflg D
Corr 0.0
CCDM
Ccdm 20047-5144 RComp Comp B Note1
Note2 Discov num I 1604 DRAs DDEs
R dRAs Year 1927 Theta 202 Rho 1.0
Obs 3 Vmag 11.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 19571S5201B
HIC