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Doubles in session


Current system
20214+8523
LOC 457


Nearby doubles
23' : 20086+8507
WSI 109AB

23' : 20032+8529
TDT1938

24' : 20040+8513
LOC 444AB

34' : 20079+8454
UC 4092

34' : 20376+8551
LOC 458

37' : 20250+8559
LDS1934

45' : 20015+8447
LOC 445

66' : 20016+8625
LOC 448

74' : 20248+8636
LDS1935

75' : 20025+8635
LOC 446

85' : 20236+8647
LOC 459

95' : 20319+8350
LOC 456

109' : 20077+8336
LOC 443

109' : 20152+8335
UC 4127

110' : 20228+8334
TDT2220

130' : 20178+8314
LOC 442

138' : 20200+8306
LOC 454

145' : 20075+8747
LOC 449

146' : 20277+8257
MLR 234

151' : 20345+8254
MLR 235

154' : 20099+8756
LOC 447

179' : 20406+8227
TDT2464

207' : 20167+8156
LOC 441

212' : 20255+8152
LOC 452

237' : 20084+8127
HU 957

237' : 20108+8127
LOC 440



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.

20214+8523 LOC 457

 
 
20h 21m 22.79s +85° 23' 00.3" P.A. 271.00 sep 1.9 mag 14.50,15.00
 
 
Coord 2000 20214+8523 Discov num LOC 457 Comp Coord arcsec 2000 20 21 22.79 +85 23 00.3
Date first 2015 Date last 2016 Obs 2
Pa first 271 Pa last 270.9 P.A. Now (θ) 270.9°
Sep first 1.9 Sep last 1.926 Sep. Now (ρ) 1.926"
Mag pri 14.50 Mag sec 15.00 delta mag (ΔM) 0.5 Spectral class
Pri motion ra +068 Sec motion ra +063
Pri motion dec +055 Sec motion dec +051
Notes V (Proper motion indicates physical)
rPM=0.073 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco
 
 
WDS 20214+8523 LOC 457 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Loc2013 C - Locatelli, G. .
Loc2013 Il Bollettino Delle Stelle Doppie 7, 28, 2013
Loc2014 P - Locatelli, G. .
Loc2014 +E2 Il Bollettino Delle Stelle Doppie 8, 36, 2014
Loc2014b C j Locatelli, G. .
Loc2014b Il Bollettino Delle Stelle Doppie 9, 12, 2014
Loc2014c C j Locatelli, G. .
Loc2014c +E2 Il Bollettino Delle Stelle Doppie 11, 20, 2014
Loc2014c +P
Loc2015a C j Locatelli, G. .
Loc2015a +E2 Il Bollettino Delle Stelle Doppie 12, 10, 2015
Loc2015a +P
Loc2015b C j Locatelli, G. .
Loc2015b Il Bollettino Delle Stelle Doppie 13, 11, 2015
Loc2015c - Locatelli, G. .
Loc2015c Il Bollettino Delle Stelle Doppie 14, 16, 2015
Loc2016 C - Locatelli, G. .
Loc2016 +Pp Il Bollettino Delle Stelle Doppie 16, 9, 2016
Loc2016b C j Locatelli, G. .
Loc2016b Il Bollettino Delle Stelle Doppie 17, 16, 2016
Loc2016c C j Sordiglioni, G., Mantero, A., Locatelli, G. & Galli, G. .
Loc2016c Il Bollettino Delle Stelle Doppie 17, 25, 2016
Loc2016d C j Locatelli, G. .
Loc2016d Il Bollettino Delle Stelle Doppie 19, 4, 2016
Loc2017a C j Locatelli, G. .
Loc2017a Il Bollettino Delle Stelle Doppie 20, 19, 2017
Loc2017b C j Locatelli, G. 2017OED....19...34L
Loc2017b El Observador de Estrellas Dobles, Issue #19, 34, 2017
Loc2019 Hg j Locatelli, G. 2019OED....22...27L
Loc2019 El Observador de Estrellas Dobles, Issue #22, 27, 2019
Loc2019b Hg j Locatelli, G. 2019OED....23...39L
Loc2019b El Observador de Estrellas Dobles, Issue #23, 39, 2019
Loc2019b Note: pairs already in WDS or WDSS not added.
Loc2019c Hg j Locatelli, G. 2019OED....23...63L
Loc2019c El Observador de Estrellas Dobles, Issue #23, 63, 2019
Loc2019c Note: pairs already in WDS or WDSS not added.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20214+8523 LOC 457 2015 1 271 1.9 14.50 15.00 V 202122.79+852300.3
20214+8523 LOC 457 2016 2 271 1.9 14.50 15.00 V 202122.79+852300.3

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

 
 
WDS 20214+8523 LOC 457 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20214+8523 LOC 457 : MEASURES
 
 
No records found.

 
 
WDS 20214+8523 : VIRTUAL EYEPIECE
 
 

20214+8523 LOC 457A mag 14.5 20214+8523 LOC 457B sep 0.2 P.A. 281.00 mag 15 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 20214+8523 : ALADIN DSS IMAGE @ 20h 21m 22.79s +85° 23' 00.3"
 
 
 
 
WDS 20214+8523 LOC 457 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20214+8523 LOC 457 distance=1' 20086+8507 WSI 109AB distance=23' 20086+8507 RAO 21AC distance=23' 20032+8529 TDT1938 distance=23' 20040+8513 LOC 444AB distance=24' 20079+8454 UC 4092 distance=34' 20376+8551 LOC 458 distance=34' 20250+8559 LDS1934 distance=37' 20015+8447 LOC 445 distance=45' 20016+8625 LOC 448 distance=66' 20248+8636 LDS1935 distance=74' 20025+8635 LOC 446 distance=75' 20236+8647 LOC 459 distance=85' 20319+8350 LOC 456 distance=95' 20077+8336 LOC 443 distance=109' 20152+8335 UC 4127 distance=109' 20228+8334 TDT2220 distance=110' 20178+8314 LOC 442 distance=130' 20200+8306 LOC 454 distance=138' 20075+8747 LOC 449 distance=145' 20277+8257 MLR 234 distance=146' 20345+8254 MLR 235 distance=151' 20099+8756 LOC 447 distance=154' 20406+8227 TDT2464 distance=179' 20167+8156 LOC 441 distance=207' 20255+8152 LOC 452 distance=212' 20084+8127 HU 957 distance=237' 20108+8127 LOC 440 distance=237' 20282+8125 BUP 211AB distance=238' 20282+8125 STH 7AC distance=238' 20094+8114 LOC 439 distance=250' 20165+8109 STT 526 distance=255' 20295+8105 BUP 212BC distance=256' 20295+8105 STT 593AB distance=258' 20400+8048 LDS1937 distance=277' 20144+8032 STF2694 distance=292' 20397+8030 HDS2946 distance=295' 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 20214+8523 LOC 457 271 1.9 1
Show 20086+8507 WSI 109 AB 175 0.1 23
Show 20086+8507 RAO 21 AC 71 1.2 23
Show 20032+8529 TDT1938 356 0.5 23
Show 20040+8513 LOC 444 AB 296 20.0 24
Show 20079+8454 UC 4092 163 45.7 34
Show 20376+8551 LOC 458 163 3.6 34
Show 20250+8559 LDS1934 10 64.2 37
Show 20015+8447 LOC 445 183 45.6 45
Show 20016+8625 LOC 448 341 2.0 66
Show 20248+8636 LDS1935 316 14.7 74
Show 20025+8635 LOC 446 333 2.3 75
Show 20236+8647 LOC 459 21 3.3 85
Show 20319+8350 LOC 456 266 1.1 95
Show 20077+8336 LOC 443 8 1.4 109
Show 20152+8335 UC 4127 43 42.7 109
Show 20228+8334 TDT2220 59 0.4 110
Show 20178+8314 LOC 442 74 1.5 130
Show 20200+8306 LOC 454 145 7.8 138
Show 20075+8747 LOC 449 307 1.4 145
Show 20277+8257 MLR 234 94 0.6 146
Show 20345+8254 MLR 235 165 0.8 151
Show 20099+8756 LOC 447 307 7.2 154
Show 20406+8227 TDT2464 181 1.3 179
Show 20167+8156 LOC 441 139 1.0 207
Show 20255+8152 LOC 452 150 1.1 212
Show 20084+8127 HU 957 144 4.9 237
Show 20108+8127 LOC 440 158 1.4 237
Show 20282+8125 BUP 211 AB 11 109.5 238
Show 20282+8125 STH 7 AC 282 196.6 238
Show 20094+8114 LOC 439 78 3.9 250
Show 20165+8109 STT 526 167 1.3 255
Show 20295+8105 BUP 212 BC 293 100.4 256
Show 20295+8105 STT 593 AB 36 214.4 258
Show 20400+8048 LDS1937 312 6.7 277
Show 20144+8032 STF2694 345 4.3 292
Show 20397+8030 HDS2946 143 0.2 295

 
 
WDS 20214+8523 : COMPONENTS
 
 
  A
B pa=281.0°
sep=0.16"
 
 
20214+8523 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202122.79+852300.3 Mag 14.5 PmRA 68.00
PmDE 55.0
 
 
20214+8523 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202122.66+852300.3 Mag 15 PmRA 63.00
PmDE 51.0 Calc delta mag 0.5 Calc coord yes