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Doubles in session


Current system
20418-0430
HJ 921
HD 197143


Nearby doubles
6' : 20417-0424
BU 267

20' : 20428-0418
UC 4265

29' : 20419-0458
RST4676

45' : 20405-0349
RST4674

47' : 20423-0344
KPP 476

54' : 20421-0336
RST4677

57' : 20456-0426
OCC9021

61' : 20447-0511
HJ 924

66' : 20458-0454
UC 4282AB

68' : 20424-0323
RST4678

75' : 20469-0417
J 1709

76' : 20369-0416
LDS1475

78' : 20452-0331
AHD 28

81' : 20455-0332
AHD 29

86' : 20473-0408
LDS4858

89' : 20411-0558
BAR9004

90' : 20474-0359
TDT2540

94' : 20439-0557
RST4679

95' : 20372-0523
J 2316

95' : 20468-0527
KPP 478

95' : 20481-0410
J 1710

95' : 20390-0555
GWP2977

100' : 20351-0436
RST4671

103' : 20404-0610
CVR 229

106' : 20393-0609
BRT 555

108' : 20392-0609
RAS 31



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.

20418-0430 HJ 921 (HD 197143)

 
 
20h 41m 47.11s -04° 29' 37.0" P.A. 220.00 sep 9.4 mag 9.47,9.71 Sp G0
 
 
Coord 2000 20418-0430 Discov num HJ  921 Comp Coord arcsec 2000 20 41 47.11 -04 29 37.0
Date first 1827 Date last 2021 Obs 27
Pa first 225 Pa last 219.5 P.A. Now (θ) 219.5°
Sep first 5.0 Sep last 9.36 Sep. Now (ρ) 9.36"
Mag pri 9.47 Mag sec 9.71 delta mag (ΔM) 0.24 Spectral class G0 (yellow)
Pri motion ra -037 Sec motion ra -037
Pri motion dec -034 Sec motion dec -034
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 197143 Constellation Aquarius SAO 144711 Tycho2 5185-01599-1
Gaia DR2 6914596909304918400 HD 197143
 
 
WDS 20418-0430 HJ 921 (HD 197143) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma 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
20418-0430 HJ 921 2004 16 220 9.4 9.47 9.71 G0 D 204147.11-042937.0
20418-0430 HJ 921 2015 19 220 9.3 9.47 9.71 G0 204147.11-042937.0
20418-0430 HJ 921 2016 21 220 9.4 9.47 9.71 G0 204147.11-042937.0
20418-0430 HJ 921 2021 27 220 9.4 9.47 9.71 G0 204147.11-042937.0

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

 
 
WDS 20418-0430 HJ 921 (HD 197143) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20418-0430 HJ 921 (HD 197143) : MEASURES
 
 
No records found.

 
 
WDS 20418-0430 (HD 197143) : VIRTUAL EYEPIECE
 
 

20418-0430 HJ 921A mag 9.47 Sp G0 20418-0430 HJ 921B sep 9.3 P.A. 219.40 mag 9.71 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 20418-0430 (HD 197143) : ALADIN DSS IMAGE @ 20h 41m 47.11s -04° 29' 37.0"
 
 
 
 
WDS 20418-0430 HJ 921 (HD 197143) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20418-0430 HJ 921 distance=0' 20417-0424 BU 267 distance=6' 20428-0418 UC 4265 distance=20' 20419-0458 RST4676 distance=29' 20405-0349 RST4674 distance=45' 20423-0344 KPP 476 distance=47' 20421-0336 RST4677 distance=54' 20456-0426 OCC9021 distance=57' 20447-0511 HJ 924 distance=61' 20458-0454 UC 4282AB distance=66' 20424-0323 RST4678 distance=68' 20469-0417 J 1709 distance=75' 20369-0416 LDS1475 distance=76' 20452-0331 AHD 28 distance=78' 20455-0332 AHD 29 distance=81' 20473-0408 LDS4858 distance=86' 20411-0558 BAR9004 distance=89' 20474-0359 TDT2540 distance=90' 20439-0557 RST4679 distance=94' 20372-0523 J 2316 distance=95' 20468-0527 KPP 478 distance=95' 20481-0410 J 1710 distance=95' 20390-0555 GWP2977 distance=95' 20351-0436 RST4671 distance=100' 20404-0610 CVR 229 distance=103' 20393-0609 BRT 555 distance=106' 20392-0609 RAS 31 distance=108' 20375-0303 J 1775AB distance=109' 20375-0303 BRT 505AC distance=109' 20375-0303 J 1775AD distance=109' 20375-0303 BRT 505BC distance=109' 20375-0303 J 1775BD distance=109' 20365-0311 TOR 26 distance=110' 20364-0550 HO 279 distance=114' 20343-0445 BRT 502 distance=115' 20463-0258 LDS 724 distance=115' 20371-0258 TDT2427 distance=116' 20374-0254 TOR 27 distance=117' 20347-0341 TDT2389 distance=117' 20340-0438 TDT2379 distance=117' 20425-0233 WRH 13 distance=118' 20363-0305 KPP1332 distance=119' 20345-0421 J 2315 distance=119' 20453-0239 BRT 506 distance=123' 20375-0614 BRT 504 distance=124' 20367-0250 UC 4231 distance=126' 20481-0302 A 174 distance=129' 20402-0222 KPP4209AB distance=130' 20341-0530 TDT2382 distance=131' 20440-0631 GRV1138 distance=131' 20482-0601 TOK 341 distance=133' 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 20418-0430 HJ 921 220 9.4
Show 20417-0424 BU 267 237 1.9 6
Show 20428-0418 UC 4265 32 50.1 20
Show 20419-0458 RST4676 188 0.3 29
Show 20405-0349 RST4674 118 5.1 45
Show 20423-0344 KPP 476 141 3.9 47
Show 20421-0336 RST4677 122 4.4 54
Show 20456-0426 OCC9021 273 0.0 57
Show 20447-0511 HJ 924 85 8.1 61
Show 20458-0454 UC 4282 AB 209 41.1 66
Show 20424-0323 RST4678 349 2.8 68
Show 20469-0417 J 1709 216 8.3 75
Show 20369-0416 LDS1475 259 21.2 76
Show 20452-0331 AHD 28 307 37.4 78
Show 20455-0332 AHD 29 137 20.9 81
Show 20473-0408 LDS4858 11 17.3 86
Show 20411-0558 BAR9004 266 3.2 89
Show 20474-0359 TDT2540 63 0.6 90
Show 20439-0557 RST4679 356 0.3 94
Show 20372-0523 J 2316 54 12.7 95
Show 20468-0527 KPP 478 273 3.8 95
Show 20481-0410 J 1710 205 8.5 95
Show 20390-0555 GWP2977 142 108.2 95
Show 20351-0436 RST4671 48 0.7 100
Show 20404-0610 CVR 229 73 35.1 103
Show 20393-0609 BRT 555 266 2.9 106
Show 20392-0609 RAS 31 142 0.5 108
Show 20375-0303 J 1775 AB 352 4.1 109
Show 20375-0303 BRT 505 AC 36 8.8 109
Show 20375-0303 J 1775 AD 249 18.3 109
Show 20375-0303 BRT 505 BC 56 7.0 109
Show 20375-0303 J 1775 BD 238 19.7 109
Show 20365-0311 TOR 26 75 16.5 110
Show 20364-0550 HO 279 184 7.7 114
Show 20343-0445 BRT 502 120 3.3 115
Show 20463-0258 LDS 724 135 74.9 115
Show 20371-0258 TDT2427 92 1.0 116
Show 20374-0254 TOR 27 233 2.9 117
Show 20347-0341 TDT2389 184 0.6 117
Show 20340-0438 TDT2379 180 3.9 117
Show 20425-0233 WRH 13 101 1.8 118
Show 20363-0305 KPP1332 228 10.1 119
Show 20345-0421 J 2315 319 6.5 119
Show 20453-0239 BRT 506 277 4.1 123
Show 20375-0614 BRT 504 329 3.9 124
Show 20367-0250 UC 4231 75 24.4 126
Show 20481-0302 A 174 357 0.6 129
Show 20402-0222 KPP4209 AB 250 2.2 130
Show 20341-0530 TDT2382 249 1.2 131
Show 20440-0631 GRV1138 50 33.2 131
Show 20482-0601 TOK 341 261 391.4 133

 
 
WDS 20418-0430 : COMPONENTS
 
 
  A
B pa=219.4°
sep=9.35"
 
 
20418-0430 A
 
 
Componente originario normalizzato AB Name HD 197143 Coord arcsec 2000 204147.11-042937.0 Mag 9.47
Spectral class G0 (yellow) PmRA -37.00 PmDE -34.0 SAO 144711
Tycho2 5185-01599-1 HD 197143 DM BD-05 5347
Tycho2
Tycho2 5185-01599-1 Pflag RAmdeg 310.44628802 DEmdeg -4.49360735
PmRA -34.1 PmDE -33.1 E RAmdeg 14 E DEmdeg 17
E pmRA 2.1 E pmDE 2.2 EpRAm 1991.06 EpDEm 1990.51
Num 3 Q RAmdeg 0.2 Q DEmdeg 0.4 Q pmRA 0.2
Q pmDE 0.5 BTmag 10.148 E BTmag 0.028 VTmag 9.468
E VTmag 0.022 Prox 94 TYC T HIP
CCDM RAdeg 310.44636806 DEdeg -4.49352694 EpRA 1990 1.59
EpDE 1990 1.27 E RAdeg 13.6 E DEdeg 16.9 Posflg
Corr -0.2
SAO
SAO 144711 DelFlag RA1950 PmRA1950 -0.0027
DE1950 PmDE1950 -0.03 Vmag 9 SpType G0
Double code Source 27 CatNum 7185 DM BD-05 5347
DMcomp BDsup HD 197143 M HD 0
GC RA1950rad 5.40683652 DE1950rad -0.08155219 PmRA2000 -0.0025
PmDE2000 -0.033
CCDM
Ccdm 20418-0430 RComp Comp A Note1
Note2 Discov num DRAs -0.97 DDEs 23.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.8 Sp G0 PmNote *
PmRA -40 PmDE -30 Dm number -05 5347 Cat1 BD
Name2 144711 Cat2 SAO HD 197143 M HD
ADS BDS A14162 M ADS BDS N IDS IDS 20365S0451A
HIC
 
 
20418-0430 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204146.71-042944.2 Mag 9.71 PmRA -37.00
PmDE -34.0 Tycho2 5185-01599-2 Calc delta mag 0.24 Calc coord yes
Tycho2
Tycho2 5185-01599-2 Pflag RAmdeg 310.44459589 DEmdeg -4.49562103
PmRA -38.9 PmDE -35.2 E RAmdeg 15 E DEmdeg 18
E pmRA 1.9 E pmDE 1.8 EpRAm 1989.89 EpDEm 1987.44
Num 3 Q RAmdeg 0.1 Q DEmdeg 0.7 Q pmRA 0.2
Q pmDE 0.7 BTmag 10.419 E BTmag 0.034 VTmag 9.714
E VTmag 0.027 Prox 94 TYC T HIP
CCDM RAdeg 310.44468722 DEdeg -4.49553639 EpRA 1990 1.58
EpDE 1990 1.27 E RAdeg 16.3 E DEdeg 20.0 Posflg
Corr -0.3
CCDM
Ccdm 20418-0430 RComp Comp B Note1
Note2 Discov num HJ 921 DRAs DDEs
R dRAs Year 1879 Theta 219 Rho 9.4
Obs 10 Vmag 9.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14162 M ADS BDS N IDS IDS 20365S0451B
HIC