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Doubles in session


Current system
20520+8158
TDT 2588


Nearby doubles
13' : 20546+8210
LOC 468

17' : 20449+8206
LOC 467

23' : 20573+8219
LOC 470

37' : 20406+8227
TDT2464

39' : 21060+8134
LOC 480

43' : 20465+8118
KPP4213

44' : 20472+8117
TDT2537

49' : 21060+8121
PKO 31

56' : 20454+8105
LDS1938

56' : 20421+8251
LOC 469

58' : 21118+8121
LOC 571AB

66' : 20345+8254
MLR 235

71' : 20565+8049
UC 4338

75' : 20400+8048
LDS1937

78' : 21066+8048
TOK 632

81' : 20415+8042
LOC 466

93' : 20397+8030
HDS2946

95' : 21070+8030
LOC 479

103' : 20477+8016
SKF1250

107' : 20554+8011
LDS1943

119' : 20496+8000
TDT2564

122' : 20372+8001
LDS1936

123' : 21105+8356
LOC 481

147' : 20530+7932
TDT2601

162' : 21010+7919
MLR 244

166' : 20423+7915
SKF1247



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.

20520+8158 TDT 2588

 
 
20h 52m 02.60s +81° 58' 22.5" P.A. 293.00 sep 0.7 mag 11.75,12.02
 
 
Coord 2000 20520+8158 Discov num TDT2588 Comp Coord arcsec 2000 20 52 02.60 +81 58 22.5
Date first 1991 Date last 2016 Obs 3
Pa first 295 Pa last 293.3 P.A. Now (θ) 293.3°
Sep first 0.9 Sep last 0.726 Sep. Now (ρ) 0.726"
Mag pri 11.75 Mag sec 12.02 delta mag (ΔM) 0.27 Spectral class
Pri motion ra -024 Sec motion ra -024
Pri motion dec -024 Sec motion dec -024
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco Tycho2 4598-01134-1 Gaia DR2 2298621455497229056
 
 
WDS 20520+8158 TDT 2588 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
No records found.

 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20520+8158 TDT2588 1991 1 295 0.9 11.75 12.02 205202.60+815822.5
20520+8158 TDT2588 2015 2 294 0.7 11.75 12.02 205202.60+815822.5
20520+8158 TDT2588 2016 3 293 0.7 11.75 12.02 205202.60+815822.5

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

 
 
WDS 20520+8158 TDT 2588 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20520+8158 TDT 2588 : MEASURES
 
 
No records found.

 
 
WDS 20520+8158 : VIRTUAL EYEPIECE
 
 

20520+8158 TDT2588A mag 11.75 20520+8158 TDT2588B sep 0.3 P.A. 342.00 mag 12.02 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 20520+8158 : ALADIN DSS IMAGE @ 20h 52m 02.60s +81° 58' 22.5"
 
 
 
 
WDS 20520+8158 TDT 2588 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20520+8158 TDT2588 distance=1' 20546+8210 LOC 468 distance=13' 20449+8206 LOC 467 distance=17' 20573+8219 LOC 470 distance=23' 20406+8227 TDT2464 distance=37' 21060+8134 LOC 480 distance=39' 20465+8118 KPP4213 distance=43' 20472+8117 TDT2537 distance=44' 21060+8121 PKO 31 distance=49' 20454+8105 LDS1938 distance=56' 20421+8251 LOC 469 distance=56' 21118+8121 LOC 571AB distance=58' 21118+8121 LOC 571AC distance=58' 21118+8121 LOC 571BC distance=58' 20345+8254 MLR 235 distance=66' 20565+8049 UC 4338 distance=71' 20400+8048 LDS1937 distance=75' 21066+8048 TOK 632 distance=78' 20415+8042 LOC 466 distance=81' 20397+8030 HDS2946 distance=93' 21070+8030 LOC 479 distance=95' 20477+8016 SKF1250 distance=103' 20554+8011 LDS1943 distance=107' 20496+8000 TDT2564 distance=119' 20372+8001 LDS1936 distance=122' 21105+8356 LOC 481 distance=123' 20530+7932 TDT2601 distance=147' 21010+7919 MLR 244 distance=162' 20423+7915 SKF1247 distance=166' 20460+7907 MLR 237AB distance=172' 20499+7900 LOC 464 distance=179' 21021+7855 LOC 477 distance=185' 20487+8506 LOC 471AB distance=188' 21037+7827 KPP4222 distance=214' 20592+7823 CON 38 distance=217' 20491+7818 LOC 463 distance=221' 20507+8552 STF2794 distance=234' 20376+8551 LOC 458 distance=234' 21089+7752 LOC 476 distance=250' 20323+7753 LOC 450 distance=251' 21092+7719 LOC 474 distance=284' 21087+7718 LOC 475 distance=285' 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 20520+8158 TDT2588 293 0.7 1
Show 20546+8210 LOC 468 320 5.5 13
Show 20449+8206 LOC 467 231 22.7 17
Show 20573+8219 LOC 470 263 3.1 23
Show 20406+8227 TDT2464 181 1.3 37
Show 21060+8134 LOC 480 285 3.1 39
Show 20465+8118 KPP4213 148 5.2 43
Show 20472+8117 TDT2537 209 1.0 44
Show 21060+8121 PKO 31 119 9.6 49
Show 20454+8105 LDS1938 321 18.2 56
Show 20421+8251 LOC 469 123 1.6 56
Show 21118+8121 LOC 571 AB 87 12.7 58
Show 21118+8121 LOC 571 AC 199 2.1 58
Show 21118+8121 LOC 571 BC 259 13.6 58
Show 20345+8254 MLR 235 165 0.8 66
Show 20565+8049 UC 4338 91 12.9 71
Show 20400+8048 LDS1937 312 6.7 75
Show 21066+8048 TOK 632 53 999.9 78
Show 20415+8042 LOC 466 26 1.2 81
Show 20397+8030 HDS2946 143 0.2 93
Show 21070+8030 LOC 479 209 3.5 95
Show 20477+8016 SKF1250 333 4.3 103
Show 20554+8011 LDS1943 314 15.8 107
Show 20496+8000 TDT2564 256 1.1 119
Show 20372+8001 LDS1936 313 40.8 122
Show 21105+8356 LOC 481 15 21.0 123
Show 20530+7932 TDT2601 350 2.5 147
Show 21010+7919 MLR 244 188 2.5 162
Show 20423+7915 SKF1247 338 17.3 166
Show 20460+7907 MLR 237 AB 118 3.1 172
Show 20499+7900 LOC 464 336 2.1 179
Show 21021+7855 LOC 477 275 3.4 185
Show 20487+8506 LOC 471 AB 331 1.5 188
Show 21037+7827 KPP4222 264 2.0 214
Show 20592+7823 CON 38 237 2.5 217
Show 20491+7818 LOC 463 193 1.2 221
Show 20507+8552 STF2794 90 17.7 234
Show 20376+8551 LOC 458 163 3.6 234
Show 21089+7752 LOC 476 53 1.2 250
Show 20323+7753 LOC 450 293 3.2 251
Show 21092+7719 LOC 474 350 10.6 284
Show 21087+7718 LOC 475 324 5.3 285

 
 
WDS 20520+8158 : COMPONENTS
 
 
  A
B pa=342.0°
sep=0.30"
 
 
20520+8158 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205202.60+815822.5 Mag 11.75 PmRA -24.00
PmDE -24.0 Tycho2 4598-01134-1
Tycho2
Tycho2 4598-01134-1 Pflag RAmdeg 313.00998332 DEmdeg 81.97296687
PmRA -23.9 PmDE -23.7 E RAmdeg 51 E DEmdeg 55
E pmRA 2.2 E pmDE 2.3 EpRAm 1984.62 EpDEm 1984.31
Num 4 Q RAmdeg 1.0 Q DEmdeg 0.4 Q pmRA 1.0
Q pmDE 0.4 BTmag 12.507 E BTmag 0.181 VTmag 11.276
E VTmag 0.079 Prox 999 TYC HIP
CCDM RAdeg 313.01033722 DEdeg 81.97302056 EpRA 1990 1.76
EpDE 1990 1.83 E RAdeg 55.9 E DEdeg 60.8 Posflg
Corr 0.0
 
 
20520+8158 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205202.56+815822.8 Mag 12.02 PmRA -24.00
PmDE -24.0 Calc delta mag 0.27 Calc coord yes