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Current system
20422+0724
J 571


Nearby doubles
11' : 20426+0714
TDT2489

37' : 20421+0648
GWP2987

44' : 20442+0648
SKF2552AB

50' : 20457+0709
BU 834

61' : 20388+0750
TDT2448

65' : 20468+0733
GAA 8

75' : 20399+0620
RAO 617

81' : 20462+0822
SKF1867

81' : 20386+0628
KPP 806

86' : 20468+0821
GWP2998

88' : 20464+0618
TDT2533

89' : 20457+0838
A 1210

91' : 20364+0733
GWP2971

93' : 20459+0607
TDT2523

96' : 20446+0854
LDS1046

96' : 20478+0818
UC 4291

97' : 20384+0838
WIS 339

97' : 20487+0706
J 3223

100' : 20358+0711
LEP 170

102' : 20455+0553
HDS2954

114' : 20397+0910
UC 4248

115' : 20478+0600
BU 65

119' : 20478+0555
TDT2543

119' : 20501+0802
GWP3003

122' : 20478+0857
UC 4290

123' : 20345+0653
BU 1208



Selections
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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.

20422+0724 J 571

 
 
20h 42m 30.00s +07° 24' 00.0" P.A. 255.00 sep 3.9 mag 9.40,11.00
 
 
Coord 2000 20422+0724 Discov num J   571 Comp Coord arcsec 2000 20 42 30.00 +07 24 00.0
Date first 1911 Date last 1911 Obs 2
Pa first 253 Pa last 255.1 P.A. Now (θ) 255.1°
Sep first 3.8 Sep last 3.9 Sep. Now (ρ) 3.9"
Mag pri 9.40 Mag sec 11.00 delta mag (ΔM) 1.6 Spectral class
Pri motion ra Sec motion ra
Pri motion dec Sec motion dec
Notes X (Dubious double)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus ADS 14175 Coordinate calcolate 1 Coordinate calculated yes
 
 
WDS 20422+0724 J 571 : 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
20422+0724 J 571 1911 2 255 3.9 9.40 11.00 X

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

 
 
WDS 20422+0724 J 571 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20422+0724 J 571 : MEASURES
 
 
No records found.

 
 
WDS 20422+0724 : VIRTUAL EYEPIECE
 
 

20422+0724 J 571A mag 9.4 20422+0724 J 571B sep 3.9 P.A. 255.00 mag 11 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 20422+0724 : ALADIN DSS IMAGE @ 20h 42m 30.00s +07° 24' 00.0"
 
 
 
 
WDS 20422+0724 J 571 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20422+0724 J 571 distance=1' 20426+0714 TDT2489 distance=11' 20421+0648 GWP2987 distance=37' 20442+0648 SKF2552AB distance=44' 20442+0648 SKF2552AC distance=44' 20442+0648 SKF2552BC distance=44' 20457+0709 BU 834 distance=50' 20388+0750 TDT2448 distance=61' 20468+0733 GAA 8 distance=65' 20399+0620 RAO 617 distance=75' 20462+0822 SKF1867 distance=81' 20386+0628 KPP 806 distance=81' 20468+0821 GWP2998 distance=86' 20464+0618 TDT2533 distance=88' 20457+0838 A 1210 distance=89' 20364+0733 GWP2971 distance=91' 20459+0607 TDT2523 distance=93' 20446+0854 LDS1046 distance=96' 20478+0818 UC 4291 distance=96' 20384+0838 WIS 339 distance=97' 20487+0706 J 3223 distance=97' 20358+0711 LEP 170 distance=100' 20455+0553 HDS2954 distance=102' 20397+0910 UC 4248 distance=114' 20478+0600 BU 65 distance=115' 20478+0555 TDT2543 distance=119' 20501+0802 GWP3003 distance=119' 20478+0857 UC 4290 distance=122' 20345+0653 BU 1208 distance=123' 20504+0822 KPP4214 distance=131' 20352+0608 HWE 98 distance=133' 20346+0615 UC 4218 distance=136' 20516+0734 A 612 distance=137' 20504+0834 UC 4306 distance=137' 20339+0811 HEI 585 distance=137' 20516+0747 SKF1868 distance=138' 20473+0924 GWP2999 distance=140' 20511+0623 STF2730 distance=142' 20388+0512 GWP2976 distance=144' 20329+0647 UC 4213 distance=149' 20327+0656 HDS2934 distance=149' 20496+0538 GWP3002 distance=151' 20396+0458 KUI 99AB distance=152' 20396+0458 BAG 14Aa,Ab distance=152' 20527+0720 STF2733 distance=153' 20507+0859 TDT2574 distance=154' 20454+0952 HEI 589 distance=155' 20321+0737 UC 4206 distance=156' 20386+0950 OL 218 distance=157' 20500+0533 STTA210AB distance=158' 20500+0533 STTA210BC distance=159' 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 20422+0724 J 571 255 3.9 1
Show 20426+0714 TDT2489 232 0.4 11
Show 20421+0648 GWP2987 295 266.1 37
Show 20442+0648 SKF2552 AB 60 17.6 44
Show 20442+0648 SKF2552 AC 31 23.1 44
Show 20442+0648 SKF2552 BC 343 11.4 44
Show 20457+0709 BU 834 134 2.4 50
Show 20388+0750 TDT2448 28 0.6 61
Show 20468+0733 GAA 8 1 0.0 65
Show 20399+0620 RAO 617 334 2.5 75
Show 20462+0822 SKF1867 357 6.1 81
Show 20386+0628 KPP 806 87 7.0 81
Show 20468+0821 GWP2998 50 104.9 86
Show 20464+0618 TDT2533 230 0.7 88
Show 20457+0838 A 1210 247 4.0 89
Show 20364+0733 GWP2971 84 8.6 91
Show 20459+0607 TDT2523 80 1.7 93
Show 20446+0854 LDS1046 344 15.0 96
Show 20478+0818 UC 4291 7 46.1 96
Show 20384+0838 WIS 339 24 999.9 97
Show 20487+0706 J 3223 307 2.7 97
Show 20358+0711 LEP 170 297 4.2 100
Show 20455+0553 HDS2954 298 1.0 102
Show 20397+0910 UC 4248 329 36.4 114
Show 20478+0600 BU 65 200 1.5 115
Show 20478+0555 TDT2543 263 0.6 119
Show 20501+0802 GWP3003 228 21.2 119
Show 20478+0857 UC 4290 5 86.8 122
Show 20345+0653 BU 1208 332 3.1 123
Show 20504+0822 KPP4214 86 4.3 131
Show 20352+0608 HWE 98 1 58.5 133
Show 20346+0615 UC 4218 315 75.8 136
Show 20516+0734 A 612 7 2.0 137
Show 20504+0834 UC 4306 296 42.5 137
Show 20339+0811 HEI 585 208 1.3 137
Show 20516+0747 SKF1868 313 57.7 138
Show 20473+0924 GWP2999 356 110.7 140
Show 20511+0623 STF2730 333 3.3 142
Show 20388+0512 GWP2976 324 6.5 144
Show 20329+0647 UC 4213 204 9.0 149
Show 20327+0656 HDS2934 75 1.2 149
Show 20496+0538 GWP3002 247 57.2 151
Show 20396+0458 KUI 99 AB 111 0.3 152
Show 20396+0458 BAG 14 Aa,Ab 49 0.2 152
Show 20527+0720 STF2733 145 40.2 153
Show 20507+0859 TDT2574 142 1.4 154
Show 20454+0952 HEI 589 257 1.8 155
Show 20321+0737 UC 4206 33 73.1 156
Show 20386+0950 OL 218 274 5.5 157
Show 20500+0533 STTA210 AB 127 78.2 158
Show 20500+0533 STTA210 BC 222 12.4 159

 
 
WDS 20422+0724 : COMPONENTS
 
 
  A
B pa=255.0°
sep=3.87"
 
 
20422+0724 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204230.00+072400.0 Mag 9.4 ADS 14175
Calc coord yes
 
 
20422+0724 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204229.75+072359.0 Mag 11 Calc delta mag 1.6
Calc coord yes