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Current system
21531+4339
TDT 3215


Nearby doubles
9' : 21525+4332
TDT3212

15' : 21532+4324
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28' : 21521+4313
TDT3204

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A 620

31' : 21545+4405
TDT3229

34' : 21550+4404
BRT1153

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POP 184

35' : 21548+4310
TDT3234

36' : 21502+4356
TDS1148

43' : 21553+4413
BRT1154AB

44' : 21539+4256
ES 1461

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PKO 17

47' : 21509+4419
HJ 1700

47' : 21489+4349
TDT3170

48' : 21490+4323
PKO 16

49' : 21489+4321
TDT3171

51' : 21490+4316
BRT1152

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GRV 509

53' : 21513+4428
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J 3155AB

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TDT3172

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TDT3200

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KPP4258

67' : 21590+4357
TDT3274

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ARG 95

73' : 21584+4423
LYS 11



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21531+4339 TDT 3215

 
 
21h 53m 03.02s +43° 38' 52.5" P.A. 110.00 sep 0.8 mag 11.40,11.70
 
 
Coord 2000 21531+4339 Discov num TDT3215 Comp Coord arcsec 2000 21 53 03.02 +43 38 52.5
Date first 1991 Date last 1991 Obs 1
Pa first 110 Pa last 110.4 P.A. Now (θ) 110.4°
Sep first 0.8 Sep last 0.81 Sep. Now (ρ) 0.81"
Mag pri 11.40 Mag sec 11.70 delta mag (ΔM) 0.3 Spectral class
Pri motion ra +006 Sec motion ra +006
Pri motion dec +004 Sec motion dec +004
Notes X (Dubious double)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3197-01924-1 Gaia DR2 1973142855220330752
 
 
WDS 21531+4339 TDT 3215 : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
21531+4339 TDT3215 1991 1 110 0.8 11.40 11.70 215303.02+433852.5

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

 
 
WDS 21531+4339 TDT 3215 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21531+4339 TDT 3215 : MEASURES
 
 
No records found.

 
 
WDS 21531+4339 : VIRTUAL EYEPIECE
 
 

21531+4339 TDT3215A mag 11.4 21531+4339 TDT3215B sep 0.8 P.A. 110.40 mag 11.7 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 21531+4339 : ALADIN DSS IMAGE @ 21h 53m 03.02s +43° 38' 52.5"
 
 
 
 
WDS 21531+4339 TDT 3215 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21531+4339 TDT3215 distance=0' 21525+4332 TDT3212 distance=9' 21532+4324 GRV 517 distance=15' 21521+4313 TDT3204 distance=28' 21545+4403 A 620 distance=29' 21545+4405 TDT3229 distance=31' 21550+4404 BRT1153 distance=34' 21541+4307 POP 184 distance=35' 21548+4310 TDT3234 distance=35' 21502+4356 TDS1148 distance=36' 21553+4413 BRT1154AB distance=43' 21553+4413 WSI 34AC distance=43' 21539+4256 ES 1461 distance=44' 21492+4326 PKO 17 distance=45' 21509+4419 HJ 1700 distance=47' 21489+4349 TDT3170 distance=47' 21490+4323 PKO 16 distance=48' 21489+4321 TDT3171 distance=49' 21490+4316 BRT1152 distance=51' 21487+4357 GRV 509 distance=51' 21513+4428 TDT3195 distance=53' 21577+4356 J 3155AB distance=54' 21577+4356 J 3155AC distance=54' 21577+4356 BTG 9AD distance=54' 21577+4356 MAY9004AE distance=54' 21490+4254 TDT3172 distance=64' 21519+4441 TDT3200 distance=64' 21556+4241 KPP4258 distance=64' 21590+4357 TDT3274 distance=67' 21491+4242 ARG 95 distance=72' 21584+4423 LYS 11 distance=73' 21552+4229 TDT3241 distance=74' 21582+4428 SMA 154 distance=75' 21594+4310 KPP4260 distance=76' 21474+4256 A 405 distance=76' 21519+4221 JOD 22BF distance=80' 21513+4456 COU2318 distance=80' 21519+4221 HO 172AB distance=80' 21519+4221 HO 172AC distance=80' 21519+4221 HO 172AD distance=80' 21519+4221 FYM 113AE distance=80' 22005+4355 SMA 159 distance=83' 21454+4356 HO 168AB distance=85' 21454+4356 HO 168AC distance=85' 21454+4356 HO 168AD distance=85' 21454+4356 HO 168AE distance=85' 22009+4338 HO 175AB distance=86' 22009+4338 HO 175AC distance=86' 21586+4442 ES 683 distance=87' 22006+4406 LYS 13 distance=87' 21462+4254 COU1979 distance=88' 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 21531+4339 TDT3215 110 0.8 0
Show 21525+4332 TDT3212 39 1.7 9
Show 21532+4324 GRV 517 212 45.9 15
Show 21521+4313 TDT3204 85 2.3 28
Show 21545+4403 A 620 289 0.4 29
Show 21545+4405 TDT3229 324 0.5 31
Show 21550+4404 BRT1153 66 4.8 34
Show 21541+4307 POP 184 241 11.6 35
Show 21548+4310 TDT3234 343 2.0 35
Show 21502+4356 TDS1148 97 1.1 36
Show 21553+4413 BRT1154 AB 292 5.3 43
Show 21553+4413 WSI 34 AC 346 9.1 43
Show 21539+4256 ES 1461 352 6.1 44
Show 21492+4326 PKO 17 149 13.6 45
Show 21509+4419 HJ 1700 197 9.7 47
Show 21489+4349 TDT3170 290 2.2 47
Show 21490+4323 PKO 16 96 5.9 48
Show 21489+4321 TDT3171 286 0.5 49
Show 21490+4316 BRT1152 231 6.7 51
Show 21487+4357 GRV 509 177 56.4 51
Show 21513+4428 TDT3195 203 1.9 53
Show 21577+4356 J 3155 AB 131 5.8 54
Show 21577+4356 J 3155 AC 348 9.9 54
Show 21577+4356 BTG 9 AD 86 38.1 54
Show 21577+4356 MAY9004 AE 284 8.5 54
Show 21490+4254 TDT3172 164 0.4 64
Show 21519+4441 TDT3200 145 2.6 64
Show 21556+4241 KPP4258 257 28.6 64
Show 21590+4357 TDT3274 127 0.7 67
Show 21491+4242 ARG 95 338 23.1 72
Show 21584+4423 LYS 11 55 12.1 73
Show 21552+4229 TDT3241 345 2.2 74
Show 21582+4428 SMA 154 161 11.1 75
Show 21594+4310 KPP4260 80 1.6 76
Show 21474+4256 A 405 277 1.9 76
Show 21519+4221 JOD 22 BF 48 2.1 80
Show 21513+4456 COU2318 109 0.7 80
Show 21519+4221 HO 172 AB 82 10.7 80
Show 21519+4221 HO 172 AC 40 89.7 80
Show 21519+4221 HO 172 AD 61 480.9 80
Show 21519+4221 FYM 113 AE 20 64.4 80
Show 22005+4355 SMA 159 232 8.5 83
Show 21454+4356 HO 168 AB 42 0.8 85
Show 21454+4356 HO 168 AC 267 18.7 85
Show 21454+4356 HO 168 AD 21 28.3 85
Show 21454+4356 HO 168 AE 22 28.3 85
Show 22009+4338 HO 175 AB 323 0.8 86
Show 22009+4338 HO 175 AC 285 33.7 86
Show 21586+4442 ES 683 249 9.3 87
Show 22006+4406 LYS 13 179 8.7 87
Show 21462+4254 COU1979 261 0.4 88

 
 
WDS 21531+4339 : COMPONENTS
 
 
  A
B pa=110.4°
sep=0.81"
 
 
21531+4339 A
 
 
Coord arcsec 2000 215303.02+433852.5 Mag 11.4 PmRA 6.00 PmDE 4.0
 
 
21531+4339 B
 
 
Coord arcsec 2000 215303.09+433852.2 Mag 11.7 PmRA 6.00 PmDE 4.0
Delta magnitude 0.3 Coordinate calculated yes