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Doubles in session


Current system
20305-0745
J 2312


Nearby doubles
23' : 20292-0759
UC 4197AB

24' : 20293-0802
HLD 38

44' : 20275-0734
LDS5906

54' : 20270-0726
GWP2951

56' : 20296-0650
DOO 85

57' : 20289-0652
HJ 918

73' : 20348-0714
FAL 69

76' : 20258-0818
STF2678

77' : 20349-0822
UC 4221

78' : 20328-0854
HLD 161

80' : 20318-0629
J 1397

82' : 20293-0624
J 1392

83' : 20301-0906
J 1706

85' : 20302-0621
J 1394

88' : 20286-0622
J 1390

100' : 20249-0648
A 2998

102' : 20293-0605
GWP2960

103' : 20334-0613
HJ 1529

104' : 20247-0846
RST4062

112' : 20244-0638
WIS 338

112' : 20358-0628
UC 4227

113' : 20238-0839
KPP1896

117' : 20354-0615
FOX 94

117' : 20326-0937
J 1398

119' : 20317-0940
J 1396AB

125' : 20366-0622
CVR 871



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.

20305-0745 J 2312

 
 
20h 30m 23.64s -07° 44' 57.1" P.A. 123.00 sep 5.4 mag 11.13,12.70
 
 
Coord 2000 20305-0745 Discov num J  2312 Comp Coord arcsec 2000 20 30 23.64 -07 44 57.1
Date first 1893 Date last 2016 Obs 11
Pa first 123 Pa last 122.8 P.A. Now (θ) 122.8°
Sep first 4.9 Sep last 5.401 Sep. Now (ρ) 5.401"
Mag pri 11.13 Mag sec 12.70 delta mag (ΔM) 1.57 Spectral class
Pri motion ra -002 Sec motion ra -002
Pri motion dec +004 Sec motion dec +003
Notes V (Proper motion indicates physical)
rPM=0.224 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquila Tycho2 5754-01129-1 Gaia DR2 6907492964678360320
 
 
WDS 20305-0745 J 2312 : 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
20305-0745 J 2312 1942 2 115 4.0 11.13 12.70 203023.64-074457.1
20305-0745 J 2312 2000 3 122 5.4 11.13 12.70 203023.64-074457.1
20305-0745 J 2312 2015 7 123 5.4 11.13 12.70 203023.64-074457.1
20305-0745 J 2312 2016 11 123 5.4 11.13 12.70 203023.64-074457.1

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

 
 
WDS 20305-0745 J 2312 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20305-0745 J 2312 : MEASURES
 
 
No records found.

 
 
WDS 20305-0745 : VIRTUAL EYEPIECE
 
 

20305-0745 J 2312A mag 11.13 20305-0745 J 2312B sep 5.4 P.A. 123.00 mag 12.7 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 20305-0745 : ALADIN DSS IMAGE @ 20h 30m 23.64s -07° 44' 57.1"
 
 
 
 
WDS 20305-0745 J 2312 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20305-0745 J 2312 distance=0' 20292-0759 UC 4197AB distance=23' 20293-0802 HLD 38 distance=24' 20275-0734 LDS5906 distance=44' 20270-0726 GWP2951 distance=54' 20296-0650 DOO 85 distance=56' 20289-0652 HJ 918 distance=57' 20348-0714 FAL 69 distance=73' 20258-0818 STF2678 distance=76' 20349-0822 UC 4221 distance=77' 20328-0854 HLD 161 distance=78' 20318-0629 J 1397 distance=80' 20293-0624 J 1392 distance=82' 20301-0906 J 1706 distance=83' 20302-0621 J 1394 distance=85' 20286-0622 J 1390 distance=88' 20249-0648 A 2998 distance=100' 20293-0605 GWP2960 distance=102' 20334-0613 HJ 1529 distance=103' 20247-0846 RST4062 distance=104' 20244-0638 WIS 338 distance=112' 20358-0628 UC 4227 distance=112' 20238-0839 KPP1896 distance=113' 20354-0615 FOX 94 distance=117' 20326-0937 J 1398 distance=117' 20317-0940 J 1396AB distance=119' 20317-0940 HEI9016AC distance=119' 20366-0622 CVR 871 distance=125' 20217-0745 HO 277 distance=130' 20324-0951 BU 668AB distance=130' 20324-0951 BU 668AC distance=130' 20377-0900 GWP2974 distance=133' 20246-0602 UC 4169 distance=134' 20296-0531 CVR 225 distance=135' 20375-0614 BRT 504 distance=139' 20280-0959 UC 4192 distance=139' 20208-0745 SCJ 25 distance=143' 20399-0804 GWP2978 distance=144' 20364-0550 HO 279 distance=146' 20341-0530 TDT2382 distance=146' 20251-0539 TDT2254 distance=149' 20321-0515 A 170 distance=153' 20251-1004 LDS4840 distance=159' 20314-1023 J 1707 distance=160' 20392-0609 RAS 31 distance=162' 20198-0827 LDS1468 distance=164' 20393-0609 BRT 555 distance=165' 20239-1001 UC 4165 distance=167' 20390-0555 GWP2977 distance=169' 20372-0523 J 2316 distance=170' 20261-1026 UC 4179 distance=174' 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 20305-0745 J 2312 123 5.4
Show 20292-0759 UC 4197 AB 111 15.1 23
Show 20293-0802 HLD 38 298 2.3 24
Show 20275-0734 LDS5906 239 2.1 44
Show 20270-0726 GWP2951 78 50.0 54
Show 20296-0650 DOO 85 246 3.7 56
Show 20289-0652 HJ 918 326 7.7 57
Show 20348-0714 FAL 69 53 14.2 73
Show 20258-0818 STF2678 310 3.4 76
Show 20349-0822 UC 4221 312 17.5 77
Show 20328-0854 HLD 161 73 1.3 78
Show 20318-0629 J 1397 347 3.7 80
Show 20293-0624 J 1392 317 3.4 82
Show 20301-0906 J 1706 285 6.4 83
Show 20302-0621 J 1394 147 10.9 85
Show 20286-0622 J 1390 348 8.1 88
Show 20249-0648 A 2998 338 0.5 100
Show 20293-0605 GWP2960 285 262.4 102
Show 20334-0613 HJ 1529 110 37.0 103
Show 20247-0846 RST4062 354 0.0 104
Show 20244-0638 WIS 338 224 13.3 112
Show 20358-0628 UC 4227 283 36.9 112
Show 20238-0839 KPP1896 157 14.8 113
Show 20354-0615 FOX 94 240 2.5 117
Show 20326-0937 J 1398 359 6.1 117
Show 20317-0940 J 1396 AB 118 6.8 119
Show 20317-0940 HEI9016 AC 44 8.3 119
Show 20366-0622 CVR 871 295 23.9 125
Show 20217-0745 HO 277 68 3.0 130
Show 20324-0951 BU 668 AB 48 1.2 130
Show 20324-0951 BU 668 AC 209 121.9 130
Show 20377-0900 GWP2974 180 60.3 133
Show 20246-0602 UC 4169 50 54.1 134
Show 20296-0531 CVR 225 85 36.0 135
Show 20375-0614 BRT 504 329 3.9 139
Show 20280-0959 UC 4192 205 33.8 139
Show 20208-0745 SCJ 25 215 2.8 143
Show 20399-0804 GWP2978 153 9.0 144
Show 20364-0550 HO 279 184 7.7 146
Show 20341-0530 TDT2382 249 1.2 146
Show 20251-0539 TDT2254 106 1.0 149
Show 20321-0515 A 170 218 1.7 153
Show 20251-1004 LDS4840 298 5.5 159
Show 20314-1023 J 1707 34 9.5 160
Show 20392-0609 RAS 31 142 0.5 162
Show 20198-0827 LDS1468 31 9.0 164
Show 20393-0609 BRT 555 266 2.9 165
Show 20239-1001 UC 4165 312 15.4 167
Show 20390-0555 GWP2977 142 108.2 169
Show 20372-0523 J 2316 54 12.7 170
Show 20261-1026 UC 4179 81 30.6 174

 
 
WDS 20305-0745 : COMPONENTS
 
 
  A
B pa=123.0°
sep=5.37"
 
 
20305-0745 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 203023.64-074457.1 Mag 11.13 PmRA -2.00
PmDE 4.0 Tycho2 5754-01129-1
Tycho2
Tycho2 5754-01129-1 Pflag RAmdeg 307.59852950 DEmdeg -7.74919978
PmRA -10.4 PmDE 3.5 E RAmdeg 57 E DEmdeg 64
E pmRA 2.3 E pmDE 2.4 EpRAm 1984.83 EpDEm 1983.83
Num 3 Q RAmdeg 2.5 Q DEmdeg 0.1 Q pmRA 2.5
Q pmDE 0.1 BTmag 11.893 E BTmag 0.109 VTmag 11.131
E VTmag 0.094 Prox 999 TYC T HIP
CCDM RAdeg 307.59855417 DEdeg -7.74920806 EpRA 1990 1.56
EpDE 1990 1.45 E RAdeg 58.6 E DEdeg 66.6 Posflg
Corr -0.1
 
 
20305-0745 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 203023.94-074500.0 Mag 12.7 PmRA -2.00
PmDE 3.0 Calc delta mag 1.57 Calc coord yes