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Doubles in session


Current system
20508-1135
J 2324 AB
HD 198442


Nearby doubles
23' : 20500-1154
BRG 31

26' : 20518-1154
UC 4312

35' : 20531-1134
CHR 101

48' : 20476-1123
J 1401

72' : 20555-1147
HU 81

72' : 20472-1223
OCC1101

75' : 20457-1123
RST4068

75' : 20466-1218
HLD 164

78' : 20560-1143
RST4070

80' : 20466-1043
KPP4343AB

84' : 20556-1052
LV 8

90' : 20500-1303
UC 4304

95' : 20482-1303
HJ 2997

100' : 20575-1142
CVR 234

110' : 20433-1143
RST4067

111' : 20446-1030
KPP3125

112' : 20506-1325
KPP2249

114' : 20441-1038
SHN 40

115' : 20570-1242
TVB 317

117' : 20435-1225
TDS1095

120' : 20550-1316
GWP3016

120' : 20583-1050
CVR 878

123' : 20518-1336
BRT2777

123' : 20486-1333
RST4069

125' : 20581-1237
HU 82

126' : 20507-0929
HDS2970



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.

20508-1135 J 2324 AB (HD 198442)

 
 
20h 50m 42.88s -11° 34' 01.7" P.A. 192.00 sep 27.2 mag 10.00,10.70 Sp G5
 
 
Coord 2000 20508-1135 Discov num J  2324 Comp AB Coord arcsec 2000 20 50 42.88 -11 34 01.7
Date first 1905 Date last 2016 Obs 13
Pa first 168 Pa last 191.5 P.A. Now (θ) 191.5°
Sep first 20.4 Sep last 27.182 Sep. Now (ρ) 27.182"
Mag pri 10.00 Mag sec 10.70 delta mag (ΔM) 0.7 Spectral class G5 (yellow)
Pri motion ra +040 Sec motion ra -017
Pri motion dec +021 Sec motion dec -027
Notes U (Proper motion indicates non-physical)
rPM=1.649
This double is not physical.
 
 
20508-1135 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 198442 20 50 43 -11 34 02 J 2324 AB 2016 13 192 27.2 10.00 10.70 0.70 <===
Show 20 50 43 -11 34 02 J 2324 AC 2016 6 183 25.8 10.10 11.20 1.10
Show 20 50 43 -11 34 27 J 2324 BC 2016 9 78 4.0 10.60 11.20 0.60
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 198442 Constellation Aquarius Tycho2 5765-00130-1 Gaia DR2 6901804568255788800
HD 198442
 
 
WDS 20508-1135 J 2324 AB (HD 198442) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
J__1908 Ma - Jonckheere, R. 1908BuAsI..25..458J
J__1908 Bull. Astronomique 25, 458, 1908
J__1909a Ma - Jonckheere, R. ...................
J__1909a Journal Astronomique 1, no. 1, 1, 1909
J__1909b Ma - Jonckheere, R. ...................
J__1909b Journal Astronomique 1, no. 2, 1909
J__1909c Ma - Jonckheere, R. ...................
J__1909c Journal Astronomique 1, no. 3, 1909
J__1910a Ma j Jonckheere, R. ...................
J__1910a Journal Astronomique 1, no. 4, 25, 1910
J__1910b Ma - Jonckheere, R. ...................
J__1910b Journal Astronomique 1, no. 5, 1910
J__1910c Ma j Jonckheere, R. ...................
J__1910c Journal Astronomique 1, no. 7, 1910
J__1910d Ma - Jonckheere, R. ...................
J__1910d Journal Astronomique 1, no. 7, 1910
J__1910e Ma j Jonckheere, R. ...................
J__1910e Journal Astronomique 1, no. 7, 1910
J__1910f Ma j Jonckheere, R. ...................
J__1910f Journal Astronomique 1, no. 10, 77, 1910
J__1910g Ma - Jonckheere, R. ...................
J__1910g Journal Astronomique 1, no. 11, 81, 1910
J__1910h Ma j Jonckheere, R. ...................
J__1910h Journal Astronomique 1, no. 12, 89, 1910
J__1910i Ma j Jonckheere, R. ...................
J__1910i Journal Astronomique 1, no. 13, 98, 1910
J__1911a Ma - Jonckheere, R. ...................
J__1911a Journal Astronomique 1, no. 15, 114, 1911
J__1911b Ma j Jonckheere, R. ...................
J__1911b Journal Astronomique 1, no. 16, 121, 1911
J__1911c Ma j Jonckheere, R. 1911MNRAS..71..750J
J__1911c MNRAS 71, 750, 1911
J__1911d Ma - Jonckheere, R. 1911MNRAS..72...45J
J__1911d MNRAS 72, 45, 1911
J__1911e Ma - Jonckheere, R. 1911MNRAS..72..156J
J__1911e MNRAS 72, 156, 1911
J__1911f Ma j Jonckheere, R. 1911MNRAS..72..162J
J__1911f MNRAS 72, 162, 1911
J__1912a Ma j Jonckheere, R. 1912MNRAS..72..188J
J__1912a MNRAS 72, 188, 1912
J__1912b Ma j Jonckheere, R. ...................
J__1912b Journal Astronomique 1, no. 17, 129, 1912
J__1912c Ma - Jonckheere, R. ...................
J__1912c Journal Astronomique 1, no. 19, 134, 1912
J__1912d Ma j Jonckheere, R. ...................
J__1912d Journal Astronomique 1, no. 21, 145, 1912
J__1912e Ma - Jonckheere, R. ...................
J__1912e Journal Astronomique 1, no. 22, 148, 1912
J__1912f Ma j Jonckheere, R. ...................
J__1912f Journal Astronomique 1, no. 23, 150, 1912
J__1912g Ma j Jonckheere, R. ...................
J__1912g Journal Astronomique 2, no. 25, 1, 1912
J__1912h Ma - Jonckheere, R. ...................
J__1912h Journal Astronomique 2, no. 26, 5, 1912
J__1913a Ma j Jonckheere, R. ...................
J__1913a Journal Astronomique 2, no. 27, 9, 1913
J__1913b Ma j Jonckheere, R. ...................
J__1913b Journal Astronomique 2, no. 28, 13, 1913
J__1914 Ma - Jonckheere, R. ...................
J__1914 Journal Astronomique 2, no. 29, 18, 1914
J__1917a Ma - Jonckheere, R. 1917MmRAS..61....1J
J__1917a MemRAS 61, 1, 1917
J__1917c Ma j Jonckheere, R. 1917AJ.....31....1J
J__1917c AJ 31, 1, 1917
J__1918 Ma - Jonckheere, R. 1918AJ.....31..113J
J__1918 AJ 31, 113, 1918
J__1918b Ma j Jonckheere, R. 1918MNRAS..78..479J
J__1918b MNRAS 78, 479, 1918
J__1919 Ma j Jonckheere, R. 1919AJ.....32...65J
J__1919 AJ 32, 65, 1919
J__1920 Ma - Jonckheere, R. 1920AJ.....32..166J
J__1920 AJ 32, 166, 1920
J__1924 Ma - Jonckheere, R. 1924AJ.....35..173J
J__1924 +Mb AJ 35, 173, 1924
J__1930 Ma j Jonckheere, R. 1930JO.....13...76J
J__1930 J. Obs. 13, 76, 1930
J__1941a Ma - Jonckheere, R. 1941JO.....24...21J
J__1941a J. Obs. 24, 21, 1941
J__1941b Ma - Jonckheere, R. 1941JO.....24...69J
J__1941b +Mb J. Obs. 24, 69, 1941
J__1941c Ma - Jonckheere, R. 1941JO.....24...93J
J__1941c +Mb J. Obs. 24, 93, 1941
J__1941d Ma - Jonckheere, R. 1941JO.....24..114J
J__1941d +Mb J. Obs. 24, 114, 1941
J__1942a Ma - Jonckheere, R. 1942JO.....25...11J
J__1942a J. Obs. 25, 11, 1942
J__1942b Ma - Jonckheere, R. 1942JO.....25...15J
J__1942b J. Obs. 25, 15, 1942
J__1942c Ma - Jonckheere, R. 1942JO.....25...25J
J__1942c +Mb J. Obs. 25, 25, 1942
J__1942d Mb - Jonckheere, R. 1942JO.....25...78J
J__1942d J. Obs. 25, 78, 1942
J__1943 Ma - Jonckheere, R. 1943JO.....26...28J
J__1943 +Mb J. Obs. 26, 28, 1943
J__1944a Ma j Jonckheere, R. 1944JO.....27....1J
J__1944a +Mb J. Obs. 27, 1, 1944
J__1944b Ma - Jonckheere, R. 1944JO.....27....5J
J__1944b J. Obs. 27, 5, 1944
J__1944c Mb - Jonckheere, R. 1944JO.....27....6J
J__1944c J. Obs. 27, 6, 1944
J__1944d Ma j Jonckheere, R. 1944JO.....27....7J
J__1944d +Mb J. Obs. 27, 7, 1944
J__1944e Ma - Jonckheere, R. 1944JO.....27...11J
J__1944e J. Obs. 27, 11, 1944
J__1945 Ma - Jonckheere, R. 1945JO.....28...26J
J__1945 +Mb J. Obs. 28, 26, 1945
J__1946 Mb j Jonckheere, R. 1946JO.....29...49J
J__1946 J. Obs. 29, 49, 1946
J__1948 Ma j Jonckheere, R. 1948JO.....31...65J
J__1948 J. Obs. 31, 65, 1948
J__1949a Ma j Jonckheere, R. 1949JO.....32...13J
J__1949a +Mb J. Obs. 32, 13, 1949
J__1949b Ma j Jonckheere, R. 1949JO.....32...81J
J__1949b +Mb J. Obs. 32, 81, 1949
J__1952 M+ j Jonckheere, R. 1952JO.....35...37J
J__1952 +Pa J. Obs. 35, 37, 1952
J__1953a Ma - Jonckheere, R. 1953JO.....36...44J
J__1953a J. Obs. 36, 44, 1953
J__1953b Mb j Jonckheere, R. 1953JO.....36...49J
J__1953b J. Obs. 36, 49, 1953
J__1954 Mb j Jonckheere, R. 1954JO.....37...13J
J__1954 J. Obs. 37, 13, 1954
J__1955 Mb - Jonckheere, R. 1955JO.....38..254J
J__1955 J. Obs. 38, 254, 1955
J__1957 Mb j Jonckheere, R. 1957JO.....40....1J
J__1957 J. Obs. 40, 1, 1957
J__1958 Mb j Jonckheere, R. 1958JO.....41..145J
J__1958 J. Obs. 41, 145, 1958
J__1962a M+ j Jonckheere, R. 1962QB821.J64......
J__1962a +Pa General Cat. of Double Stars, Marseille, 1962
J__1962b Ma - Jonckheere, R. (measure by Vanderdonck, J.) 1962QB821.J64......
J__1962b General Cat. of Double Stars, Marseille, 1962
J__1963A - Jonckheere, R. 1963icvd.book.....J
J__1963A cited in IDS (Lick Index Cat.), 1963
J__9999 Ma - Jonckheere, R. ...................
J__9999 +Pp 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
20508-1135 J 2324 AB 2005 7 186 25.2 10.13 10.60 G5 205042.88-113401.7
20508-1135 J 2324 AB 2016 9 192 27.2 10.00 10.70 G5 205042.88-113401.7

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

 
 
WDS 20508-1135 J 2324 AB (HD 198442) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20508-1135 J 2324 AB (HD 198442) : MEASURES
 
 
No records found.

 
 
WDS 20508-1135 (HD 198442) : VIRTUAL EYEPIECE
 
 

20508-1135 J 2324A mag 10 Sp G5 20508-1135 J 2324B sep 26.1 P.A. 190.40 mag 10.6 20508-1135 J 2324C sep 25.8 P.A. 183.00 mag 11.2 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 20508-1135 (HD 198442) : ALADIN DSS IMAGE @ 20h 50m 42.88s -11° 34' 01.7"
 
 
 
 
WDS 20508-1135 J 2324 AB (HD 198442) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20508-1135 J 2324AB distance=0' 20508-1135 J 2324BC distance=1' 20500-1154 BRG 31 distance=23' 20518-1154 UC 4312 distance=26' 20531-1134 CHR 101 distance=35' 20476-1123 J 1401 distance=48' 20555-1147 HU 81 distance=72' 20472-1223 OCC1101 distance=72' 20457-1123 RST4068 distance=75' 20466-1218 HLD 164 distance=75' 20560-1143 RST4070 distance=78' 20466-1043 KPP4343AB distance=80' 20466-1043 KPP4343AC distance=80' 20466-1043 KPP4343BC distance=80' 20556-1052 LV 8 distance=84' 20500-1303 UC 4304 distance=90' 20482-1303 HJ 2997 distance=95' 20575-1142 CVR 234 distance=100' 20433-1143 RST4067 distance=110' 20446-1030 KPP3125 distance=111' 20506-1325 KPP2249 distance=112' 20441-1038 SHN 40 distance=114' 20570-1242 TVB 317 distance=115' 20435-1225 TDS1095 distance=117' 20550-1316 GWP3016 distance=120' 20583-1050 CVR 878 distance=120' 20518-1336 BRT2777 distance=123' 20486-1333 RST4069 distance=123' 20581-1237 HU 82 distance=125' 20507-0929 HDS2970 distance=126' 20426-1044 TDT2490 distance=130' 20419-1115 UC 4261 distance=132' 20589-1020 GWP3024 distance=142' 20562-1331 TDT2644 distance=142' 20415-1047 RST4675 distance=145' 20569-0942 BU 1034AB distance=145' 20569-0942 BU 1034AC distance=145' 20590-1017 RST4071 distance=146' 20588-1300 UC 4348 distance=147' 20590-1311 CVR 880 distance=156' 20591-1313 HU 83 distance=158' 20527-0859 MCA 64Aa,Ab distance=158' 20527-0859 TOK 342AB distance=158' 20442-1342 HLD 162 distance=160' 20402-1055 GWP2980 distance=160' 20448-0917 HLD 163AB distance=163' 20448-0917 HLD 163AC distance=163' 20499-0851 RST4683 distance=164' 20555-1400 LDS6418AB distance=165' 20555-1400 TSN 195Aa,Ab distance=165' 20530-1416 HU 272 distance=166' 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 20508-1135 J 2324 AB 192 27.2
Show 20508-1135 J 2324 AC 183 25.8
Show 20508-1135 J 2324 BC 78 4.0 1
Show 20500-1154 BRG 31 343 0.4 23
Show 20518-1154 UC 4312 286 52.7 26
Show 20531-1134 CHR 101 183 0.2 35
Show 20476-1123 J 1401 304 4.3 48
Show 20555-1147 HU 81 55 0.3 72
Show 20472-1223 OCC1101 -1 0.0 72
Show 20457-1123 RST4068 159 1.0 75
Show 20466-1218 HLD 164 113 2.7 75
Show 20560-1143 RST4070 13 1.8 78
Show 20466-1043 KPP4343 AB 317 25.5 80
Show 20466-1043 KPP4343 AC 314 26.3 80
Show 20466-1043 KPP4343 BC 261 2.5 80
Show 20556-1052 LV 8 309 1.1 84
Show 20500-1303 UC 4304 74 64.9 90
Show 20482-1303 HJ 2997 196 8.4 95
Show 20575-1142 CVR 234 320 48.6 100
Show 20433-1143 RST4067 43 0.4 110
Show 20446-1030 KPP3125 203 3.8 111
Show 20506-1325 KPP2249 274 18.7 112
Show 20441-1038 SHN 40 28 0.3 114
Show 20570-1242 TVB 317 342 7.3 115
Show 20435-1225 TDS1095 119 1.1 117
Show 20550-1316 GWP3016 352 39.8 120
Show 20583-1050 CVR 878 54 18.0 120
Show 20518-1336 BRT2777 333 3.5 123
Show 20486-1333 RST4069 179 0.3 123
Show 20581-1237 HU 82 1 2.7 125
Show 20507-0929 HDS2970 114 15.2 126
Show 20426-1044 TDT2490 209 0.6 130
Show 20419-1115 UC 4261 261 62.4 132
Show 20589-1020 GWP3024 221 182.1 142
Show 20562-1331 TDT2644 252 0.6 142
Show 20415-1047 RST4675 184 2.3 145
Show 20569-0942 BU 1034 AB 166 2.2 145
Show 20569-0942 BU 1034 AC 66 177.8 145
Show 20590-1017 RST4071 158 1.8 146
Show 20588-1300 UC 4348 260 18.4 147
Show 20590-1311 CVR 880 16 7.7 156
Show 20591-1313 HU 83 99 0.3 158
Show 20527-0859 MCA 64 Aa,Ab 127 0.0 158
Show 20527-0859 TOK 342 AB 114 503.2 158
Show 20442-1342 HLD 162 137 1.5 160
Show 20402-1055 GWP2980 122 89.4 160
Show 20448-0917 HLD 163 AB 99 2.2 163
Show 20448-0917 HLD 163 AC 239 17.8 163
Show 20499-0851 RST4683 22 1.5 164
Show 20555-1400 LDS6418 AB 185 107.3 165
Show 20555-1400 TSN 195 Aa,Ab 190 0.1 165

 
 
WDS 20508-1135 : COMPONENTS
 
 
  A B
B pa=190.4°
sep=26.13"
 
C pa=183.0°
sep=25.79"
pa=91.0°
sep=3.34"
 
 
20508-1135 A
 
 
Name HD 198442 Coord arcsec 2000 205042.88-113401.7 Mag 10 Spectral class G5 (yellow)
PmRA 40.00 PmDE 21.0 Tycho2 5765-00130-1 HD 198442
Tycho2
Tycho2 5765-00130-1 Pflag RAmdeg 312.67867051 DEmdeg -11.56714686
PmRA 39.7 PmDE 23.9 E RAmdeg 25 E DEmdeg 31
E pmRA 1.5 E pmDE 1.5 EpRAm 1987.03 EpDEm 1981.83
Num 5 Q RAmdeg 0.8 Q DEmdeg 0.6 Q pmRA 0.7
Q pmDE 0.7 BTmag 11.156 E BTmag 0.064 VTmag 10.126
E VTmag 0.040 Prox 999 TYC T HIP
CCDM RAdeg 312.67857861 DEdeg -11.56720278 EpRA 1990 1.73
EpDE 1990 1.22 E RAdeg 25.7 E DEdeg 36.2 Posflg
Corr -0.3
 
 
20508-1135 B
 
 
Coord arcsec 2000 205042.56-113427.4 Coord calc 205042.56-113427.4 Mag 10.6 PmRA -17.00
PmDE -27.0 Calc delta mag 0.6
 
 
20508-1135 C
 
 
Coord arcsec 2000 205042.79-113427.5 Mag 11.2 PmRA -15.00 PmDE -25.0
Calc delta mag 1.2 Calc coord yes