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Current system
18369+2021
L 61


Nearby doubles
13' : 18361+2003
TDS 931

14' : 18359+2018
L 60

32' : 18369+2019
L 62

34' : 18389+2019
L 63

45' : 18365+1931
FMR 231AB

48' : 18399+2019
L 64

51' : 18355+2104
STF2345

52' : 18343+2101
TDT 939

55' : 18320+2031
LAW 18

58' : 18335+2102
COU 204AB

61' : 18316+2030
COU 119

66' : 18393+2056
STF2360

67' : 18370+1910
J 799

68' : 18368+2120
HU 323

69' : 18338+1911
TDT 936

77' : 18405+1936
OSO 102AB

90' : 18363+2143
COU 206

91' : 18353+2145
COU 205

95' : 18343+1841
MET 85AB

96' : 18412+2111
TDT 994

97' : 18372+1839
TDT 961

99' : 18293+2052
TDT 904

102' : 18303+1907
COU 508

102' : 18285+2010
COU 203AB

103' : 18302+1909
GWP2780

105' : 18430+1955
TDS 936



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.

18369+2021 L 61

 
 
18h 35m 43.98s +20° 13' 53.8" P.A. 279.00 sep 5.4 mag 13.70,13.80
 
 
Coord 2000 18369+2021 Discov num L    61 Comp Coord arcsec 2000 18 35 43.98 +20 13 53.8
Date first 1910 Date last 2015 Obs 9
Pa first 277 Pa last 279.2 P.A. Now (θ) 279.2°
Sep first 5.3 Sep last 5.367 Sep. Now (ρ) 5.367"
Mag pri 13.70 Mag sec 13.80 delta mag (ΔM) 0.1 Spectral class
Pri motion ra +045 Sec motion ra
Pri motion dec -009 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hercules Gaia DR2 4525607250262891264
 
 
WDS 18369+2021 L 61 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
L__1891 orb - Lewis, T. 1891MNRAS..51..462L
L__1891 MNRAS 51, 462, 1891
L__1894a Ma - Lewis, T. 1894MNRAS..54..314.
L__1894a MNRAS 54, 314, 1894
L__1894b Ma - Lewis, T. (measure by Edney, D.J.) 1894MNRAS..54..314.
L__1894b MNRAS 54, 314, 1894
L__1894c Ma j Lewis, T. (measure by Turner, H.) 1894MNRAS..54..314.
L__1894c MNRAS 54, 314, 1894
L__1894d Ma - Lewis, T. 1894RGOO...........
L__1894d Greenwich Observations, 1894
L__1894e orb - Lewis, T. 1894MNRAS..55...19L
L__1894e MNRAS 55, 19, 1894; MNRAS 55, 341, 1894
L__1895a Ma - Lewis, T. 1895RGOO...........
L__1895a Greenwich Observations, 1895
L__1895b Ma - Lewis, T. (measure by Bowyer, W.M.) 1895RGOO...........
L__1895b Greenwich Observations, 1895
L__1895c Ma - Lewis, T. (measure by Christie, W.H.) 1895RGOO...........
L__1895c Greenwich Observations, 1895
L__1895d Ma - Lewis, T. (measure by Hollis, H.P.) 1895RGOO...........
L__1895d Greenwich Observations, 1895
L__1895e Ma - Lewis, T. (measure by Maunder, E.W.) 1895RGOO...........
L__1895e Greenwich Observations, 1895
L__1895f Ma - Lewis, T. (measure by Niblett) 1895RGOO...........
L__1895f Greenwich Observations, 1895
L__1895g orb - Lewis, T. 1895MNRAS..56...33L
L__1895g MNRAS 56, 33, 1895
L__1896a Ma j Lewis, T. 1896RGOO...........
L__1896a Greenwich Observations, 1896 (data also in MNRAS 59, 400, 1899) 1899MNRAS..59..400.
L__1896b Ma - Lewis, T. (measure by Edney, D.J.) 1896RGOO...........
L__1896b Greenwich Observations, 1896 (data also in MNRAS 59, 400, 1899) 1899MNRAS..59..400.
L__1896c Ma j Lewis, T. (measure by Melotte, P.) 1896RGOO...........
L__1896c Greenwich Observations, 1896 (data also in MNRAS 59, 400, 1899) 1899MNRAS..59..400.
L__1896d Ma - Lewis, T. (measure by Niblett) 1896RGOO...........
L__1896d Greenwich Observations, 1896 (data also in MNRAS 59, 400, 1899) 1899MNRAS..59..400.
L__1897 Ma - Lewis, T. 1897RGOO...........
L__1897 +Po Greenwich Observations, 1897
L__1898a Ma j Lewis, T. 1898RGOO...........
L__1898a Greenwich Observations, 1898
L__1898b Ma - Lewis, T. (measure by Cowell, P.H.) 1898RGOO...........
L__1898b Greenwich Observations, 1898
L__1898c Ma - Lewis, T. (measure by Melotte, P.) 1898RGOO...........
L__1898c Greenwich Observations, 1898
L__1899a Ma j Lewis, T. 1899RGOO...........
L__1899a Greenwich Observations, 1899 (data also in MNRAS 60, 494, 1900) 1900MNRAS..60..494.
L__1899b Ma - Lewis, T. (measure by Cowell, P.H.) 1899RGOO...........
L__1899b Greenwich Observations, 1899 (data also in MNRAS 60, 494, 1900) 1900MNRAS..60..494.
L__1899c Ma - Lewis, T. (measure by Dyson, F.) 1899RGOO...........
L__1899c Greenwich Observations, 1899 (data also in MNRAS 60, 494, 1900) 1900MNRAS..60..494.
L__1899d Ma j Lewis, T. (measure by Melotte, P.) 1899RGOO...........
L__1899d Greenwich Observations, 1899 (data also in MNRAS 60, 494, 1900) 1900MNRAS..60..494.
L__1900 Ma j Lewis, T. 1900RGOO...........
L__1900 Greenwich Observations, 1900 (data also in MNRAS 61, 486, 1901) 1901MNRAS..61..486.
L__1900c Ma - Lewis, T. 1900MNRAS..60..595.
L__1900c MNRAS 60, 595, 1900
L__1901 Ma - Lewis, T. 1901RGOO...........
L__1901 Greenwich Observations, 1901 (data also in MNRAS 62, 383, 1902) 1902MNRAS..62..383E
L__1902a Ma - Lewis, T. 1902RGOO...........
L__1902a Greenwich Observations, 1902 (data also in MNRAS 63, 403, 1903) 1903MNRAS..63..403.
L__1903 Ma - Lewis, T. 1903RGOO...........
L__1903 Greenwich Observations, 1903 (data also in MNRAS 64, 789, 1904) 1904MNRAS..64..789.
L__1904 Ma j Lewis, T. 1904RGOO...........
L__1904 Greenwich Observations, 1904 (data also in MNRAS 66, 17, 1905) 1905MNRAS..66...17L
L__1905 Ma - Lewis, T. 1905RGOO...........
L__1905 Greenwich Observations, 1905
L__1906a Ma - Lewis, T. 1906RGOO...........
L__1906a Greenwich Observations, 1906 (data also in MNRAS 68, 39, 1907) 1907MNRAS..68...39.
L__1906b Ma - Lewis, T. 1906MmRAS..56....1L
L__1906b +orb MemRAS 56, 1906
L__1907 Ma j Lewis, T. 1907RGOO...........
L__1907 Greenwich Observations, 1907 (data also in MNRAS 68, 525, 1908) 1908MNRAS..68..525L
L__1908 Ma - Lewis, T. 1908RGOO...........
L__1908 Greenwich Observations, 1908 (data also in MNRAS 69, 588, 1909) 1909MNRAS..69..588.
L__1909 Ma - Lewis, T. 1909RGOO...........
L__1909 Greenwich Observations, 1909 (data also in MNRAS 70, 630, 1910) 1910MNRAS..70..630.
L__1911 Ma j Lewis, T. 1911MNRAS..71..728.
L__1911 MNRAS 71, 728, 1911
L__1912 Ma - Lewis, T. 1912MNRAS..73...93E
L__1912 MNRAS 73, 93, 1912 (all data also in L__1921)
L__1921 Ma - Lewis, T. .
L__1921 Greenwich Cat. of Double Stars, 1921
L__1932A Ma - Lewis, T. 1932QB821.A43......
L__1932A cited in ADS (Aitken Double Star Cat.), 1932
L__1937A Ma - Lewis, T. 1937AnLei..18....1S
L__1937A cited by Strand (Ann. Sterrew. Leiden 18, 1937)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18369+2021 L 61 1910 1 277 5.3 9.50 9.80
18369+2021 L 61 2000 2 279 5.4 9.50 9.80 183543.98+201353.8
18369+2021 L 61 2001 3 279 5.3 13.70 13.80 183543.98+201353.8
18369+2021 L 61 2010 4 279 5.3 13.70 13.80 183543.98+201353.8
18369+2021 L 61 2015 5 279 5.4 13.70 13.80 183543.98+201353.8

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

 
 
WDS 18369+2021 L 61 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18369+2021 L 61 : MEASURES
 
 
No records found.

 
 
WDS 18369+2021 : VIRTUAL EYEPIECE
 
 

18369+2021 L 61A mag 13.7 18369+2021 L 61B sep 5.0 P.A. 279.80 mag 13.8 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 18369+2021 : ALADIN DSS IMAGE @ 18h 35m 43.98s +20° 13' 53.8"
 
 
 
 
WDS 18369+2021 L 61 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18369+2021 L 61 distance=0' 18361+2003 TDS 931 distance=13' 18359+2018 L 60 distance=14' 18369+2019 L 62 distance=32' 18389+2019 L 63 distance=34' 18365+1931 FMR 231AB distance=45' 18365+1931 RAO 394Aa,Ab distance=45' 18399+2019 L 64 distance=48' 18355+2104 STF2345 distance=51' 18343+2101 TDT 939 distance=52' 18320+2031 LAW 18 distance=55' 18335+2102 COU 204AB distance=58' 18316+2030 COU 119 distance=61' 18393+2056 STF2360 distance=66' 18370+1910 J 799 distance=67' 18368+2120 HU 323 distance=68' 18338+1911 TDT 936 distance=69' 18405+1936 OSO 102AB distance=77' 18405+1936 OSO 102AC distance=77' 18363+2143 COU 206 distance=90' 18353+2145 COU 205 distance=91' 18343+1841 MET 85AB distance=95' 18343+1841 MET 85AC distance=95' 18343+1841 MET 85AD distance=95' 18343+1841 MET 85AE distance=95' 18343+1841 MET 85AF distance=95' 18412+2111 TDT 994 distance=96' 18372+1839 TDT 961 distance=97' 18293+2052 TDT 904 distance=99' 18303+1907 COU 508 distance=102' 18285+2010 COU 203AB distance=102' 18285+2010 COU 203Aa,Ab distance=102' 18302+1909 GWP2780 distance=103' 18430+1955 TDS 936 distance=105' 18425+2116 BRT2448 distance=113' 18366+2206 HJ 2834 distance=114' 18408+2142 HU 324 distance=114' 18432+1928 BU 645 distance=116' 18273+2012 TDS 922 distance=119' 18299+2141 TDS 926 distance=120' 18352+1812 CHR 74 distance=122' 18444+2003 GRV 238 distance=123' 18444+2015 ALD 4AB distance=125' 18444+2015 DAM 640AC distance=125' 18293+2144 J 2913AB distance=127' 18293+2144 J 2913AC distance=127' 18277+1918 STF2319AB distance=127' 18277+1918 STF2319AD distance=127' 18277+1918 STF2319AC distance=127' 18277+1918 STF2319BC distance=127' 18443+2052 HU 325 distance=127' 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 18369+2021 L 61 279 5.4
Show 18361+2003 TDS 931 49 1.2 13
Show 18359+2018 L 60 188 2.5 14
Show 18369+2019 L 62 314 6.2 32
Show 18389+2019 L 63 63 2.7 34
Show 18365+1931 FMR 231 AB 86 15.1 45
Show 18365+1931 RAO 394 Aa,Ab 233 0.2 45
Show 18399+2019 L 64 74 4.1 48
Show 18355+2104 STF2345 225 12.3 51
Show 18343+2101 TDT 939 180 0.5 52
Show 18320+2031 LAW 18 18 1.4 55
Show 18335+2102 COU 204 AB 130 11.9 58
Show 18316+2030 COU 119 229 0.7 61
Show 18393+2056 STF2360 358 2.5 66
Show 18370+1910 J 799 78 2.6 67
Show 18368+2120 HU 323 143 0.2 68
Show 18338+1911 TDT 936 349 0.8 69
Show 18405+1936 OSO 102 AB 99 17.3 77
Show 18405+1936 OSO 102 AC 36 20.3 77
Show 18363+2143 COU 206 149 0.1 90
Show 18353+2145 COU 205 148 0.1 91
Show 18343+1841 MET 85 AB 87 1.8 95
Show 18343+1841 MET 85 AC 35 2.7 95
Show 18343+1841 MET 85 AD 307 6.2 95
Show 18343+1841 MET 85 AE 114 6.9 95
Show 18343+1841 MET 85 AF 182 12.3 95
Show 18412+2111 TDT 994 27 0.7 96
Show 18372+1839 TDT 961 332 0.8 97
Show 18293+2052 TDT 904 223 0.7 99
Show 18303+1907 COU 508 254 0.9 102
Show 18285+2010 COU 203 AB 61 0.5 102
Show 18285+2010 COU 203 Aa,Ab 154 0.2 102
Show 18302+1909 GWP2780 298 57.8 103
Show 18430+1955 TDS 936 157 2.0 105
Show 18425+2116 BRT2448 294 3.8 113
Show 18366+2206 HJ 2834 246 19.7 114
Show 18408+2142 HU 324 113 0.9 114
Show 18432+1928 BU 645 305 9.3 116
Show 18273+2012 TDS 922 206 2.4 119
Show 18299+2141 TDS 926 253 0.9 120
Show 18352+1812 CHR 74 25 0.1 122
Show 18444+2003 GRV 238 345 36.6 123
Show 18444+2015 ALD 4 AB 338 4.1 125
Show 18444+2015 DAM 640 AC 169 11.0 125
Show 18293+2144 J 2913 AB 117 3.2 127
Show 18293+2144 J 2913 AC 158 15.5 127
Show 18277+1918 STF2319 AB 190 5.3 127
Show 18277+1918 STF2319 AD 71 156.7 127
Show 18277+1918 STF2319 AC 268 43.1 127
Show 18277+1918 STF2319 BC 276 42.4 127
Show 18443+2052 HU 325 6 0.4 127

 
 
WDS 18369+2021 : COMPONENTS
 
 
  A
B pa=279.8°
sep=5.04"
 
 
18369+2021 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 183543.98+201353.8 Mag 13.7 PmRA 45.00
PmDE -9.0
 
 
18369+2021 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 183543.63+201354.7 Mag 13.8 Calc delta mag 0.1
Calc coord yes