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Doubles in session


Current system
20448-0917
HLD 163 AB
HD 197554


Nearby doubles
24' : 20446-0853
J 2320AB

28' : 20456-0853
HDO 160

52' : 20414-0835
HDO 159

64' : 20452-0814
TOB 312

69' : 20455-0809
HJ 925

73' : 20446-1030
KPP3125

76' : 20430-0806
UC 4266

81' : 20499-0851
RST4683

82' : 20441-1038
SHN 40

89' : 20507-0929
HDS2970

89' : 20391-0942
J 1400AB

91' : 20466-1043
KPP4343AB

93' : 20426-1044
TDT2490

94' : 20495-0815
TDT2563

98' : 20499-0815
J 2322AB

103' : 20399-0804
GWP2978

103' : 20415-1047
RST4675

106' : 20377-0900
GWP2974

107' : 20432-0733
TDS1093

108' : 20490-0749
UC 4297

110' : 20509-0815
SHN 247

117' : 20447-0721
A 2999

119' : 20527-0859
TOK 342AB

120' : 20402-1055
GWP2980

122' : 20455-0716
A 3000

126' : 20419-1115
UC 4261



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.

20448-0917 HLD 163 AB (HD 197554)

 
 
20h 44m 46.56s -09° 16' 49.8" P.A. 99.00 sep 2.2 mag 9.20,11.80 Sp A0
 
 
Coord 2000 20448-0917 Discov num HLD 163 Comp AB Coord arcsec 2000 20 44 46.56 -09 16 49.8
Date first 1882 Date last 2015 Obs 6
Pa first 100 Pa last 98.8 P.A. Now (θ) 98.8°
Sep first 2.0 Sep last 2.177 Sep. Now (ρ) 2.177"
Mag pri 9.20 Mag sec 11.80 delta mag (ΔM) 2.6 Spectral class A0 (white)
Pri motion ra +003 Sec motion ra
Pri motion dec -009 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20448-0917 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 197554 144760 20 44 47 -09 16 50 HLD 163 AB 2015 6 99 2.2 9.20 11.80 2.60 <===
Show 144760 20 44 47 -09 16 50 HLD 163 AC 2015 6 239 17.8 9.20 13.00 3.80
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 197554 Constellation Aquarius SAO 144760 Tycho2 5756-00110-1
Gaia DR2 6903161954016126976 HD 197554
 
 
WDS 20448-0917 HLD 163 AB (HD 197554) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hld1874 Ma - Holden, E.S. .
Hld1874 Washington Observations, 1874
Hld1875 Ma - Holden, E.S. .
Hld1875 Washington Observations, 1875
Hld1875b Ma j Holden, E.S. & Newcomb, S. 1875AN.....86..321H
Hld1875b AN 86, 321, 1875
Hld1875c Ma j Holden, E.S. 1875AN.....86..321H
Hld1875c AN 86, 321, 1875
Hld1876 Ma - Holden, E.S. .
Hld1876 Washington Observations, 1876
Hld1876b Ma j Holden, E.S. 1876AN.....88..131H
Hld1876b AN 88, 131, 1876
Hld1877 Ma - Holden, E.S. 1877AN.....90..161H
Hld1877 AN 90, 161, 1877
Hld1877b Ma j Holden, E.S. 1877AN.....90..161H
Hld1877b AN 90, 161, 1877
Hld1878 Ma - Holden, E.S. .
Hld1878 Washington Observations, 1878
Hld1878b Ma j Holden, E.S. 1878AN.....93...65H
Hld1878b AN 93, 65, 1878 (data also in Hld1878)
Hld1879 Ma - Holden, E.S. .
Hld1879 Washington Observations, 1879
Hld1879b Ma j Holden, E.S. 1879AN.....95..329H
Hld1879b AN 95, 329, 1879 (data also in Hld1879)
Hld1880 Ma - Holden, E.S. .
Hld1880 Washington Observations, 1880
Hld1880b Ma j Holden, E.S. 1880AN.....97..319H
Hld1880b AN 97, 319, 1880 (data also in Hld1880)
Hld1881 Ma - Holden, E.S. .
Hld1881 Washington Observations, 1881
Hld1881b Ma j Holden, E.S. 1881MNRAS..41..416.
Hld1881b MNRAS 41, 416, 1881
Hld1882 Ma - Holden, E.S. 1882PWasO...1...77H
Hld1882 Pub. Washburn Obs. 1, 77, 1882 (see Pub. Lick Obs. 2, 1894) 1894PLicO...2.....B
Hld1884 Ma - Holden, E.S. 1884PWasO...2...97H
Hld1884 Pub. Washburn Obs. 2, 97, 1884
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20448-0917 HLD 163 AB 1950 5 104 2.0 9.20 11.80 A0 204446.56-091649.8
20448-0917 HLD 163 AB 2015 6 99 2.2 9.20 11.80 A0 204446.56-091649.8

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

 
 
WDS 20448-0917 HLD 163 AB (HD 197554) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20448-0917 HLD 163 AB (HD 197554) : MEASURES
 
 
No records found.

 
 
WDS 20448-0917 (HD 197554) : VIRTUAL EYEPIECE
 
 

20448-0917 HLD 163A mag 9.2 Sp A0 20448-0917 HLD 163B sep 2.1 P.A. 98.90 mag 11.8 20448-0917 HLD 163C sep 17.6 P.A. 238.90 mag 13 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 20448-0917 (HD 197554) : ALADIN DSS IMAGE @ 20h 44m 46.56s -09° 16' 49.8"
 
 
 
 
WDS 20448-0917 HLD 163 AB (HD 197554) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20448-0917 HLD 163AB distance=1' 20448-0917 HLD 163AC distance=1' 20446-0853 J 2320AB distance=24' 20446-0853 J 2320AC distance=24' 20456-0853 HDO 160 distance=28' 20414-0835 HDO 159 distance=52' 20452-0814 TOB 312 distance=64' 20455-0809 HJ 925 distance=69' 20446-1030 KPP3125 distance=73' 20430-0806 UC 4266 distance=76' 20499-0851 RST4683 distance=81' 20441-1038 SHN 40 distance=82' 20507-0929 HDS2970 distance=89' 20391-0942 J 1400AB distance=89' 20391-0942 J 1400AC distance=89' 20466-1043 KPP4343BC distance=90' 20466-1043 KPP4343AB distance=91' 20466-1043 KPP4343AC distance=91' 20426-1044 TDT2490 distance=93' 20495-0815 TDT2563 distance=94' 20499-0815 J 2322AB distance=98' 20399-0804 GWP2978 distance=103' 20415-1047 RST4675 distance=103' 20377-0900 GWP2974 distance=106' 20432-0733 TDS1093 distance=107' 20490-0749 UC 4297 distance=108' 20509-0815 SHN 247 distance=110' 20447-0721 A 2999 distance=117' 20527-0859 MCA 64Aa,Ab distance=119' 20527-0859 TOK 342AB distance=119' 20402-1055 GWP2980 distance=120' 20455-0716 A 3000 distance=122' 20419-1115 UC 4261 distance=126' 20457-1123 RST4068 distance=128' 20476-1123 J 1401 distance=133' 20433-1143 RST4067 distance=148' 20453-0646 RST4680 distance=152' 20349-0822 UC 4221 distance=157' 20475-0646 SKF1769 distance=157' 20482-0648 RST4681 distance=158' 20417-0646 CVR 872 distance=158' 20508-1135 J 2324AB distance=163' 20508-1135 J 2324AC distance=163' 20508-1135 J 2324BC distance=164' 20531-0728 BRT 556 distance=165' 20440-0631 GRV1138 distance=166' 20534-0719 RST4685 distance=175' 20500-1154 BRG 31 distance=176' 20502-0640 FMR 19 distance=177' 20328-0854 HLD 161 distance=180' 20569-0942 BU 1034AB distance=182' 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 20448-0917 HLD 163 AB 99 2.2 1
Show 20448-0917 HLD 163 AC 239 17.8 1
Show 20446-0853 J 2320 AB 135 3.4 24
Show 20446-0853 J 2320 AC 54 10.5 24
Show 20456-0853 HDO 160 201 5.7 28
Show 20414-0835 HDO 159 236 8.2 52
Show 20452-0814 TOB 312 26 40.8 64
Show 20455-0809 HJ 925 174 10.1 69
Show 20446-1030 KPP3125 203 3.8 73
Show 20430-0806 UC 4266 144 21.3 76
Show 20499-0851 RST4683 22 1.5 81
Show 20441-1038 SHN 40 28 0.3 82
Show 20507-0929 HDS2970 114 15.2 89
Show 20391-0942 J 1400 AB 21 4.6 89
Show 20391-0942 J 1400 AC 232 12.4 89
Show 20466-1043 KPP4343 BC 261 2.5 90
Show 20466-1043 KPP4343 AB 317 25.5 91
Show 20466-1043 KPP4343 AC 314 26.3 91
Show 20426-1044 TDT2490 209 0.6 93
Show 20495-0815 TDT2563 92 0.6 94
Show 20499-0815 J 2322 AB 8 3.9 98
Show 20399-0804 GWP2978 153 9.0 103
Show 20415-1047 RST4675 184 2.3 103
Show 20377-0900 GWP2974 180 60.3 106
Show 20432-0733 TDS1093 33 0.9 107
Show 20490-0749 UC 4297 261 21.3 108
Show 20509-0815 SHN 247 -1 0.5 110
Show 20447-0721 A 2999 221 2.1 117
Show 20527-0859 MCA 64 Aa,Ab 127 0.0 119
Show 20527-0859 TOK 342 AB 114 503.2 119
Show 20402-1055 GWP2980 122 89.4 120
Show 20455-0716 A 3000 64 0.7 122
Show 20419-1115 UC 4261 261 62.4 126
Show 20457-1123 RST4068 159 1.0 128
Show 20476-1123 J 1401 304 4.3 133
Show 20433-1143 RST4067 43 0.4 148
Show 20453-0646 RST4680 235 0.1 152
Show 20349-0822 UC 4221 312 17.5 157
Show 20475-0646 SKF1769 244 2.0 157
Show 20482-0648 RST4681 243 0.3 158
Show 20417-0646 CVR 872 20 20.3 158
Show 20508-1135 J 2324 AB 192 27.2 163
Show 20508-1135 J 2324 AC 183 25.8 163
Show 20508-1135 J 2324 BC 78 4.0 164
Show 20531-0728 BRT 556 109 2.5 165
Show 20440-0631 GRV1138 50 33.2 166
Show 20534-0719 RST4685 81 2.1 175
Show 20500-1154 BRG 31 343 0.4 176
Show 20502-0640 FMR 19 333 4.2 177
Show 20328-0854 HLD 161 73 1.3 180
Show 20569-0942 BU 1034 AB 166 2.2 182

 
 
WDS 20448-0917 : COMPONENTS
 
 
  A B
B pa=98.9°
sep=2.15"
 
C pa=238.9°
sep=17.64"
pa=243.0°
sep=19.33"
 
 
20448-0917 A
 
 
Name HD 197554 Coord arcsec 2000 204446.56-091649.8 Mag 9.2 Spectral class A0 (white)
PmRA 3.00 PmDE -9.0 SAO 144760 Tycho2 5756-00110-1
HD 197554 DM BD-09 5563
Tycho2
Tycho2 5756-00110-1 Pflag RAmdeg 311.19399598 DEmdeg -9.28051854
PmRA -2.2 PmDE -15.0 E RAmdeg 7 E DEmdeg 10
E pmRA 1.2 E pmDE 1.3 EpRAm 1990.90 EpDEm 1989.59
Num 8 Q RAmdeg 0.9 Q DEmdeg 0.9 Q pmRA 1.0
Q pmDE 0.8 BTmag 9.288 E BTmag 0.018 VTmag 9.199
E VTmag 0.016 Prox 999 TYC T HIP
CCDM RAdeg 311.19400083 DEdeg -9.28048139 EpRA 1990 1.67
EpDE 1990 1.10 E RAdeg 6.8 E DEdeg 9.9 Posflg
Corr -0.2
SAO
SAO 144760 DelFlag RA1950 PmRA1950 0
DE1950 PmDE1950 -0.005 Vmag 9 SpType A0
Double code Source 26 CatNum 7413 DM BD-09 5563
DMcomp BDsup HD 197554 M HD 0
GC RA1950rad 5.41957058 DE1950rad -0.16515164 PmRA2000 0.0002
PmDE2000 -0.007
CCDM
Ccdm 20448-0917 RComp Comp A Note1
Note2 Discov num DRAs -1.49 DDEs 10.4
R dRAs 10 Year Theta Rho
Obs 3 Vmag 9.3 Sp A0 PmNote *
PmRA 0 PmDE -5 Dm number -09 5563 Cat1 BD
Name2 144760 Cat2 SAO HD 197554 M HD
ADS BDS A14223 M ADS BDS N IDS IDS 20394S0938A
HIC
 
 
20448-0917 B
 
 
Coord arcsec 2000 204446.70-091650.1 Mag 11.8 Calc delta mag 2.6 Calc coord yes
CCDM
Ccdm 20448-0917 RComp Comp B Note1
Note2 Discov num HLD 163 DRAs DDEs
R dRAs Year 1888 Theta 103 Rho 2.2
Obs 4 Vmag 11.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14223 M ADS BDS N IDS IDS 20394S0938B
HIC
 
 
20448-0917 C
 
 
Coord arcsec 2000 204445.54-091658.9 Mag 13 PmRA 2.00 PmDE -19.0
Calc delta mag 3.8 Calc coord yes
CCDM
Ccdm 20448-0917 RComp Comp C Note1
Note2 Discov num HLD 163 DRAs DDEs
R dRAs Year 1905 Theta 239 Rho 17.8
Obs 2 Vmag 13.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14223 M ADS BDS N IDS IDS 20394S0938C
HIC