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Doubles in session


Current system
20380+7119
MLB 420


Nearby doubles
46' : 20458+7146
SKF1249

52' : 20353+7030
A 873

56' : 20493+7131
MLB 422

61' : 20465+7036
MLB 363

70' : 20458+7219
MLB 421

73' : 20339+7229
LDS1933

80' : 20284+7015
MLB 362

81' : 20335+7002
TDT2370

88' : 20454+7000
MLR 93

91' : 20192+7124
MLB 419

93' : 20561+7052
TDT2640

93' : 20571+7138
TDT2652

98' : 20274+7245
A 871

117' : 20544+6957
A 1216AB

121' : 20408+7319
LDS1939

121' : 20515+7304
LDS1941

132' : 20243+6927
LDS2452

138' : 20464+7332
TDS1099

141' : 20282+7333
MLR 233

146' : 20186+7314
LDS1931

148' : 20520+6910
JOD 19

163' : 20217+7345
A 870

164' : 20273+6846
HDS2925

164' : 20219+7347
HDS2909

167' : 20376+6834
TDT2433

182' : 20369+6818
MLB 299



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.

20380+7119 MLB 420

 
 
20h 38m 00.00s +71° 19' 55.2" P.A. 276.00 sep 3.6 mag 9.70,11.50
 
 
Coord 2000 20380+7119 Discov num MLB 420 Comp Coord arcsec 2000 20 38 00.00 +71 19 55.2
Date first 1925 Date last 2016 Obs 6
Pa first 270 Pa last 276.4 P.A. Now (θ) 276.4°
Sep first 3.2 Sep last 3.567 Sep. Now (ρ) 3.567"
Mag pri 9.70 Mag sec 11.50 delta mag (ΔM) 1.8 Spectral class
Pri motion ra +010 Sec motion ra
Pri motion dec -008 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco Tycho2 4455-00878-1 Gaia DR2 2274585753358989568
 
 
WDS 20380+7119 MLB 420 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Mlb1918 Mb - Milburn, W. (Espin, T.E.) 1918MNRAS..78..189E
Mlb1918 MNRAS 78, 189, 1918 (MLB 1 - 35; measures by Espin)
Mlb1919 Mb - Milburn, W. (Espin, T.E.) 1919MNRAS..79..211E
Mlb1919 MNRAS 79, 211, 1919 (MLB 36 - 106; measures by Espin)
Mlb1920 Mb - Milburn, W. 1920MNRAS..80..329M
Mlb1920 MNRAS 80, 329, 1920 (MLB 107 - 149)
Mlb1921 Mb - Milburn, W. 1921MNRAS..81..232E
Mlb1921 MNRAS 81, 232, 1921 (MLB 150 - 182)
Mlb1922 Mb j Milburn, W. (Espin, T.E.) 1922MNRAS..82..187E
Mlb1922 MNRAS 82, 187, 1922 (MLB 183 - 241; measures by Espin)
Mlb1923 Mb - Milburn, W. 1923MNRAS..83..154E
Mlb1923 MNRAS 83, 154, 1923 (MLB 242 - 275)
Mlb1924 Mb - Milburn, W. 1924MNRAS..84..162E
Mlb1924 MNRAS 84, 162, 1924 (MLB 276 - 322)
Mlb1925 Mb j Milburn, W. 1925MNRAS..85..276E
Mlb1925 MNRAS 85, 276, 1925 (MLB 323 - 376)
Mlb1926 Mb - Milburn, W. 1926MNRAS..86..131E
Mlb1926 MNRAS 86, 131, 1926 (MLB 377 - 440)
Mlb1927 Mb j Milburn, W. 1927MNRAS..87..215E
Mlb1927 +Po MNRAS 87, 215, 1927 (MLB 441 - 510)
Mlb1928 Mb - Milburn, W. 1928MNRAS..88..185E
Mlb1928 MNRAS 88, 185, 1928 (MLB 511 - 551)
Mlb1929 Mb - Milburn, W. 1929MNRAS..89..268E
Mlb1929 MNRAS 89, 268, 1929 (MLB 552 - 591)
Mlb1930 Mb - Milburn, W. 1930MNRAS..90..317E
Mlb1930 MNRAS 90, 317, 1930 (MLB 592 - 630)
Mlb1931 Mb j Milburn, W. 1931MNRAS..91..294E
Mlb1931 MNRAS 91, 294, 1931 (MLB 631 - 673)
Mlb1932 Ma - Milburn, W. 1932MNRAS..92..214E
Mlb1932 +Mb MNRAS 92, 214, 1932 (MLB 674 - 732)
Mlb1932B Ma - Milburn, W. 1932QB821.A43......
Mlb1932B cited by ADS (Aitken Double Star Cat., 1932)
Mlb1933 Ma j Milburn, W. 1933MNRAS..93..192E
Mlb1933 +Mb MNRAS 93, 192, 1933 (MLB 733 - 806)
Mlb1934 Mb j Milburn, W. 1934MNRAS..94..255M
Mlb1934 MNRAS 94, 255, 1934 (MLB 807 - 912)
Mlb1935 Mb j Milburn, W. 1935MNRAS..95..298M
Mlb1935 MNRAS 95, 298, 1935 (MLB 913 - 969)
Mlb1936 Mb - Milburn, W. 1936MNRAS..96..266M
Mlb1936 MNRAS 96, 266, 1936 (MLB 970 - 997)
Mlb1937 Ma - Milburn, W. 1937MNRAS..97..222M
Mlb1937 +Mb MNRAS 97, 222, 1937 (MLB 998 - 1025)
Mlb1938 Ma - Milburn, W. 1938MNRAS..98..223M
Mlb1938 +Mb MNRAS 98, 223, 1938 (MLB 1026 - 1032)
Mlb1939 Mb - Milburn, W. 1939MNRAS..99..278M
Mlb1939 MNRAS 99, 278, 1939 (MLB 1033 - 1051)
Mlb9999 Mb - Milburn, W. ...................
Mlb9999 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
20380+7119 MLB 420 1999 2 277 3.6 9.70 11.50 D 203800.00+711955.2
20380+7119 MLB 420 2010 3 273 3.5 9.70 11.50 D 203800.00+711955.2
20380+7119 MLB 420 2015 5 276 3.6 9.70 11.50 203800.00+711955.2
20380+7119 MLB 420 2016 6 276 3.6 9.70 11.50 203800.00+711955.2

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

 
 
WDS 20380+7119 MLB 420 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20380+7119 MLB 420 : MEASURES
 
 
No records found.

 
 
WDS 20380+7119 : VIRTUAL EYEPIECE
 
 

20380+7119 MLB 420A mag 9.7 20380+7119 MLB 420B sep 1.2 P.A. 289.30 mag 11.5 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 20380+7119 : ALADIN DSS IMAGE @ 20h 38m 00.00s +71° 19' 55.2"
 
 
 
 
WDS 20380+7119 MLB 420 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20380+7119 MLB 420 distance=1' 20458+7146 SKF1249 distance=46' 20353+7030 A 873 distance=52' 20493+7131 MLB 422 distance=56' 20465+7036 MLB 363 distance=61' 20458+7219 MLB 421 distance=70' 20339+7229 LDS1933 distance=73' 20284+7015 MLB 362 distance=80' 20335+7002 TDT2370 distance=81' 20454+7000 MLR 93 distance=88' 20192+7124 MLB 419 distance=91' 20561+7052 TDT2640 distance=93' 20571+7138 TDT2652 distance=93' 20274+7245 A 871 distance=98' 20544+6957 A 1216CD distance=116' 20544+6957 A 1216AB distance=117' 20544+6957 A 1216AC distance=117' 20408+7319 LDS1939 distance=121' 20515+7304 LDS1941 distance=121' 20243+6927 LDS2452 distance=132' 20464+7332 TDS1099 distance=138' 20282+7333 MLR 233 distance=141' 20186+7314 LDS1931 distance=146' 20520+6910 JOD 19 distance=148' 20217+7345 A 870 distance=163' 20273+6846 HDS2925 distance=164' 20219+7347 HDS2909 distance=164' 20376+6834 TDT2433 distance=167' 20369+6818 MLB 299 distance=182' 20229+6832 MLB 361 distance=185' 20485+7429 MLR 238 distance=196' 20339+6801 MLB1089 distance=201' 20284+6756 TDT2309 distance=210' 20500+7455 VKI 38 distance=222' 20300+6726 KPP4203AC distance=238' 20185+6743 MLB 298 distance=240' 20485+7517 LDS1940 distance=243' 20272+7522 TDT2285 distance=247' 20465+6717 MLR 73 distance=248' 20415+6710 MLB 300 distance=252' 20374+7536 HEI 7 distance=257' 20274+6706 MLB 266 distance=260' 20509+6708 MLB 301 distance=261' 20246+6708 LDS2453 distance=262' 20233+6710 LAW 19 distance=262' 20223+6709 KPP4193 distance=265' 20517+6701 MLB 302 distance=270' 20296+6648 MLR 67 distance=276' 20550+7547 LDS1942 distance=277' 20302+6644 SKF2611 distance=279' 20290+6640 MLR 66 distance=282' 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 20380+7119 MLB 420 276 3.6 1
Show 20458+7146 SKF1249 281 39.0 46
Show 20353+7030 A 873 68 0.3 52
Show 20493+7131 MLB 422 203 5.5 56
Show 20465+7036 MLB 363 211 3.2 61
Show 20458+7219 MLB 421 251 1.9 70
Show 20339+7229 LDS1933 175 7.0 73
Show 20284+7015 MLB 362 26 5.4 80
Show 20335+7002 TDT2370 148 0.7 81
Show 20454+7000 MLR 93 210 0.1 88
Show 20192+7124 MLB 419 314 2.0 91
Show 20561+7052 TDT2640 318 0.7 93
Show 20571+7138 TDT2652 307 0.6 93
Show 20274+7245 A 871 184 0.3 98
Show 20544+6957 A 1216 CD 82 0.9 116
Show 20544+6957 A 1216 AB 327 20.1 117
Show 20544+6957 A 1216 AC 346 38.6 117
Show 20408+7319 LDS1939 227 18.9 121
Show 20515+7304 LDS1941 234 1.6 121
Show 20243+6927 LDS2452 157 6.9 132
Show 20464+7332 TDS1099 336 1.2 138
Show 20282+7333 MLR 233 88 1.2 141
Show 20186+7314 LDS1931 85 21.4 146
Show 20520+6910 JOD 19 172 0.5 148
Show 20217+7345 A 870 196 0.1 163
Show 20273+6846 HDS2925 91 0.7 164
Show 20219+7347 HDS2909 238 0.7 164
Show 20376+6834 TDT2433 101 1.0 167
Show 20369+6818 MLB 299 204 7.6 182
Show 20229+6832 MLB 361 326 2.6 185
Show 20485+7429 MLR 238 20 0.2 196
Show 20339+6801 MLB1089 354 9.2 201
Show 20284+6756 TDT2309 232 0.7 210
Show 20500+7455 VKI 38 297 2.8 222
Show 20300+6726 KPP4203 AC 293 5.4 238
Show 20185+6743 MLB 298 156 9.0 240
Show 20485+7517 LDS1940 133 10.0 243
Show 20272+7522 TDT2285 154 0.6 247
Show 20465+6717 MLR 73 37 6.3 248
Show 20415+6710 MLB 300 18 1.7 252
Show 20374+7536 HEI 7 231 0.7 257
Show 20274+6706 MLB 266 177 3.9 260
Show 20509+6708 MLB 301 333 4.9 261
Show 20246+6708 LDS2453 193 10.3 262
Show 20233+6710 LAW 19 224 1.1 262
Show 20223+6709 KPP4193 9 1.5 265
Show 20517+6701 MLB 302 324 4.9 270
Show 20296+6648 MLR 67 250 0.6 276
Show 20550+7547 LDS1942 346 2.7 277
Show 20302+6644 SKF2611 299 128.4 279
Show 20290+6640 MLR 66 111 2.6 282

 
 
WDS 20380+7119 : COMPONENTS
 
 
  A
B pa=289.3°
sep=1.20"
 
 
20380+7119 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 203800.00+711955.2 Mag 9.7 PmRA 10.00
PmDE -8.0
 
 
20380+7119 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 203759.76+711955.6 Mag 11.5 Tycho2 4455-00878-1
Calc delta mag 1.8 Calc coord yes
Tycho2
Tycho2 4455-00878-1 Pflag RAmdeg 309.50001950 DEmdeg 71.33201865
PmRA -4.8 PmDE -8.3 E RAmdeg 100 E DEmdeg 111
E pmRA 2.6 E pmDE 2.7 EpRAm 1972.68 EpDEm 1969.55
Num 3 Q RAmdeg 2.0 Q DEmdeg 1.2 Q pmRA 2.0
Q pmDE 1.3 BTmag 14.233 E BTmag 0.446 VTmag 12.407
E VTmag 0.190 Prox 999 TYC HIP
CCDM RAdeg 309.50005417 DEdeg 71.33203750 EpRA 1990 1.79
EpDE 1990 1.77 E RAdeg 111.8 E DEdeg 126.1 Posflg
Corr 0.0