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Current system
20051-6304
HJ 5163
HD 189721


Nearby doubles
52' : 19584-6329
TDS1028

56' : 19578-6241
HU 1609AB

57' : 20118-6337
RST5153AB

61' : 20092-6210
HU 1611AB

65' : 20020-6405
HDS2853

66' : 20088-6203
UC 4102

73' : 20074-6415
RST5467

84' : 20071-6141
TDT1994

93' : 20161-6210
I 411

96' : 19545-6408
FIN 275

103' : 20115-6437
TDS1049

104' : 20146-6426
HJ 5171AB

108' : 19494-6259
HDS2821

109' : 20010-6448
SOZ 20

110' : 19500-6231
RST5464

111' : 20072-6453
KPP 457

120' : 19475-6306
TDT1756

123' : 19509-6421
RST5465

125' : 20232-6249
NSN 445

127' : 19548-6119
DEA 17

129' : 19597-6102
HJ 5155AB

129' : 20099-6059
JSP 810

130' : 19512-6435
MLO 88

131' : 20241-6245
UC 4167

131' : 20071-6514
RST1057

134' : 19468-6221
TDT1736



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20051-6304 HJ 5163 (HD 189721)

 
 
20h 05m 08.77s -63° 03' 41.7" P.A. 249.00 sep 1.3 mag 7.73,8.44 Sp A3V dist. 153.14 pc (499.54 l.y.)
 
 
Coord 2000 20051-6304 Discov num HJ 5163 Comp Coord arcsec 2000 20 05 08.77 -63 03 41.7
Date first 1836 Date last 2016 Obs 15
Pa first 252 Pa last 248.7 P.A. Now (θ) 248.7°
Sep first 1.4 Sep last 1.32 Sep. Now (ρ) 1.32"
Mag pri 7.73 Mag sec 8.44 delta mag (ΔM) 0.71 Spectral class A3V (white)
Pri motion ra +013 Sec motion ra +013
Pri motion dec -037 Sec motion dec -037
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 189721 Constellation Pavo SAO 254722 HIP 98919
Tycho2 9090-01312-1 Gaia DR2 6430422840845257600 HD 189721 GC 27795
CP CP-63 4561 Distance 153.14 Distance ly 499.54
 
 
WDS 20051-6304 HJ 5163 (HD 189721) : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
idgroup discov author
1 HJ Herschel, J.F.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20051-6304 HJ 5163 1991 13 249 1.3 7.73 8.44 A3V D 200508.77-630341.7
20051-6304 HJ 5163 2016 14 249 1.3 7.73 8.44 A3V 200508.77-630341.7

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

 
 
WDS 20051-6304 HJ 5163 (HD 189721) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20051-6304 HJ 5163 (HD 189721) : MEASURES
 
 
No records found.

 
 
WDS 20051-6304 (HD 189721) : VIRTUAL EYEPIECE
 
 

20051-6304 HJ 5163A mag 7.73 Sp A3V 20051-6304 HJ 5163B sep 0.7 P.A. 229.30 mag 8.44 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20051-6304 (HD 189721) : ALADIN DSS IMAGE @ 20h 05m 08.77s -63° 03' 41.7"
 
 
 
 
WDS 20051-6304 HJ 5163 (HD 189721) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20051-6304 HJ 5163 distance=0' 19584-6329 TDS1028 distance=52' 19578-6241 HU 1609AB distance=56' 19578-6241 B 9038AC distance=56' 20118-6337 RST5153AB distance=57' 20118-6337 HJ 5167AB,C distance=57' 20092-6210 HU 1611AB distance=61' 20020-6405 HDS2853 distance=65' 20088-6203 UC 4102 distance=66' 20074-6415 RST5467 distance=73' 20071-6141 TDT1994 distance=84' 20161-6210 I 411 distance=93' 19545-6408 FIN 275 distance=96' 20115-6437 TDS1049 distance=103' 20146-6426 HJ 5171BC distance=103' 20146-6426 HJ 5171AB distance=104' 20146-6426 HJ 5171AC distance=104' 20146-6426 BAU 60AD distance=104' 19494-6259 HDS2821 distance=108' 20010-6448 SOZ 20 distance=109' 19500-6231 RST5464 distance=110' 20072-6453 KPP 457 distance=111' 19475-6306 TDT1756 distance=120' 19509-6421 RST5465 distance=123' 20232-6249 NSN 445 distance=125' 19548-6119 DEA 17 distance=127' 19597-6102 HJ 5155AB distance=129' 19597-6102 BAU 59AC distance=129' 20099-6059 JSP 810 distance=129' 19512-6435 MLO 88 distance=130' 20241-6245 UC 4167 distance=131' 20071-6514 RST1057 distance=131' 19468-6221 TDT1736 distance=134' 20218-6420 LDS 708AB distance=134' 20218-6420 BAU 62AC distance=134' 19491-6149 I 120AB distance=135' 19491-6149 HJ 5141AB,C distance=135' 20227-6411 B 988 distance=136' 19461-6409 TDS1010 distance=143' 19565-6522 RSS 536 distance=150' 20026-6541 I 1409 distance=150' 19498-6454 HJ 5140 distance=150' 20040-6541 I 1411 distance=153' 19499-6504 BRT2016 distance=157' 20039-6026 KPP2309 distance=158' 19498-6103 JSP 806 distance=160' 19483-6502 TDS1013 distance=163' 20211-6105 UC 4157 distance=164' 20079-6549 TDT2009 distance=167' 20127-6026 UC 4122 distance=167' 20073-6551 B 985 distance=169' 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 20051-6304 HJ 5163 249 1.3 0
Show 19584-6329 TDS1028 346 1.0 52
Show 19578-6241 HU 1609 AB 236 2.4 56
Show 19578-6241 B 9038 AC 339 16.0 56
Show 20118-6337 RST5153 AB 331 0.3 57
Show 20118-6337 HJ 5167 AB,C 33 7.3 57
Show 20092-6210 HU 1611 AB 290 1.5 61
Show 20020-6405 HDS2853 104 0.4 65
Show 20088-6203 UC 4102 155 73.6 66
Show 20074-6415 RST5467 285 0.8 73
Show 20071-6141 TDT1994 34 3.5 84
Show 20161-6210 I 411 273 0.8 93
Show 19545-6408 FIN 275 28 1.0 96
Show 20115-6437 TDS1049 27 1.2 103
Show 20146-6426 HJ 5171 BC 0 21.5 103
Show 20146-6426 HJ 5171 AB 305 17.3 104
Show 20146-6426 HJ 5171 AC 335 34.6 104
Show 20146-6426 BAU 60 AD 215 52.1 104
Show 19494-6259 HDS2821 110 0.4 108
Show 20010-6448 SOZ 20 271 22.5 109
Show 19500-6231 RST5464 286 0.9 110
Show 20072-6453 KPP 457 344 4.6 111
Show 19475-6306 TDT1756 41 2.2 120
Show 19509-6421 RST5465 314 1.2 123
Show 20232-6249 NSN 445 192 2.0 125
Show 19548-6119 DEA 17 7 135.9 127
Show 19597-6102 HJ 5155 AB 192 4.7 129
Show 19597-6102 BAU 59 AC 163 44.2 129
Show 20099-6059 JSP 810 146 2.7 129
Show 19512-6435 MLO 88 229 5.2 130
Show 20241-6245 UC 4167 328 90.2 131
Show 20071-6514 RST1057 50 1.7 131
Show 19468-6221 TDT1736 287 2.3 134
Show 20218-6420 LDS 708 AB 210 22.1 134
Show 20218-6420 BAU 62 AC 281 46.3 134
Show 19491-6149 I 120 AB 166 0.4 135
Show 19491-6149 HJ 5141 AB,C 340 14.0 135
Show 20227-6411 B 988 68 1.8 136
Show 19461-6409 TDS1010 180 0.9 143
Show 19565-6522 RSS 536 13 19.7 150
Show 20026-6541 I 1409 131 12.8 150
Show 19498-6454 HJ 5140 254 1.5 150
Show 20040-6541 I 1411 280 17.7 153
Show 19499-6504 BRT2016 104 3.7 157
Show 20039-6026 KPP2309 178 19.5 158
Show 19498-6103 JSP 806 214 2.4 160
Show 19483-6502 TDS1013 264 1.3 163
Show 20211-6105 UC 4157 22 34.1 164
Show 20079-6549 TDT2009 303 0.5 167
Show 20127-6026 UC 4122 15 37.2 167
Show 20073-6551 B 985 206 4.7 169

 
 
WDS 20051-6304 : COMPONENTS
 
 
  A
B pa=229.3°
sep=0.74"
 
 
20051-6304 A
 
 
Name HD 189721 Coord arcsec 2000 200508.77-630341.7 Mag 7.73 Spectral class A3V (white)
PmRA 13.00 PmDE -37.0 SAO 254722 HIP 98919
Tycho2 9090-01312-1 HD 189721 GC 27795 CP CP-63 4561
Tycho2
Tycho2 9090-01312-1 Pflag P RAmdeg 301.28654968 DEmdeg -63.06159142
PmRA 13.1 PmDE -36.7 E RAmdeg 5 E DEmdeg 5
E pmRA 2.3 E pmDE 2.2 EpRAm 1991.59 EpDEm 1991.58
Num 7 Q RAmdeg 1.6 Q DEmdeg 1.0 Q pmRA 1.7
Q pmDE 1.1 BTmag 7.848 E BTmag 0.015 VTmag 7.732
E VTmag 0.011 Prox 13 TYC T HIP 98919
CCDM A RAdeg 301.28664639 DEdeg -63.06147833 EpRA 1990 1.74
EpDE 1990 1.73 E RAdeg 4.5 E DEdeg 4.6 Posflg D
Corr 0.0
SAO
SAO 254722 DelFlag RA1950 PmRA1950 -0.0004
DE1950 PmDE1950 -0.008 Vmag 7.3 SpType A2
Double code Source 70 CatNum 27795 DM CP-63 4561
DMcomp BDsup HD 189721 M HD 0
GC 27795 RA1950rad 5.23899795 DE1950rad -1.10310023 PmRA2000 -0.0015
PmDE2000 -0.01
Hipparcos
Catalog H HIP 98919 Proxy H RAhms 20 05 08.80
DEdms -63 03 41.3 Vmag 7.28 VarFlag R Vmag H
RAdeg 301.287 DEdeg -63.0615 AstroRef A Plx 5.59
CCDM 20051-6304 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 249 Rho 1.286 HD 189721 BD
CD CP CP-63 4561 Dm number -63 4561 VIred 0.13
SpType A3V R SpType Coord arcsec 2000 200508.80-630341.3
Hipparcos 2
HIP 98919 Sn 15 So 3 Nc 2
RArad 5.2584440334 DErad -1.1006303676 Plx 6.53 PmRA 6.26
PmDE -39.21 E RArad 0.61 E DErad 0.64 E Plx 0.97
E pmRA 0.7 E pmDE 0.72 Hpmag 7.3292 E Hpmag 0.0013
SHp 0.011 VA 0 BV 0 E BV 0.495
VI 0.13
CCDM
Ccdm 20051-6304 RComp Comp A Note1
Note2 Discov num DRAs 2.50 DDEs 21.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.9 Sp A2 PmNote *
PmRA -3 PmDE -8 Dm number -63 4561 Cat1 CPD
Name2 254722 Cat2 SAO HD 189721 M HD
ADS BDS M ADS BDS N IDS IDS 19562S6320A
HIC 98919
 
 
20051-6304 B
 
 
Coord arcsec 2000 200508.69-630342.2 Mag 8.44 PmRA 13.00 PmDE -37.0
Tycho2 9090-01312-2 Calc delta mag 0.71 Calc coord yes
Tycho2
Tycho2 9090-01312-2 Pflag P RAmdeg 301.28654968 DEmdeg -63.06159142
PmRA 13.1 PmDE -36.7 E RAmdeg 5 E DEmdeg 5
E pmRA 2.3 E pmDE 2.2 EpRAm 1991.59 EpDEm 1991.58
Num 7 Q RAmdeg 1.6 Q DEmdeg 1.0 Q pmRA 1.7
Q pmDE 1.1 BTmag 8.728 E BTmag 0.017 VTmag 8.444
E VTmag 0.013 Prox 13 TYC HIP 98919
CCDM B RAdeg 301.28591806 DEdeg -63.06160833 EpRA 1990 1.74
EpDE 1990 1.71 E RAdeg 6.2 E DEdeg 6.6 Posflg D
Corr 0.0
CCDM
Ccdm 20051-6304 RComp Comp B Note1
Note2 Discov num HJ 5163 DRAs DDEs
R dRAs Year 1872 Theta 249 Rho 1.5
Obs 8 Vmag 8.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 19562S6320B
HIC 98919