20338+4540 A 740

 
 
20h 33m 50.35s +45° 39' 41.2" P.A. 313.00 sep 0.8 mag 9.64,9.95 Sp O5V
 
 
Coord 2000 20338+4540 Discov num A   740 Comp Coord arcsec 2000 20 33 50.35 +45 39 41.2
Date first 1904 Date last 2016 Obs 16
Pa first 314 Pa last 312.5 P.A. Now (θ) 312.5°
Sep first 0.8 Sep last 0.83 Sep. Now (ρ) 0.83"
Mag pri 9.64 Mag sec 9.95 delta mag (ΔM) 0.31 Spectral class O5V (blue)
Pri motion ra +000 Sec motion ra +000
Pri motion dec -007 Sec motion dec -007
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3573-00385-1 Gaia DR2 2071169745679972096
 
 
WDS 20338+4540 A 740 : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20338+4540 A 740 2007 13 313 0.9 9.64 9.95 O8 203350.35+453941.2
20338+4540 A 740 2009 14 314 0.8 9.64 9.95 O8 203350.35+453941.2
20338+4540 A 740 2016 16 313 0.8 9.64 9.95 O5V 203350.35+453941.2

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WDS 20338+4540 A 740 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20338+4540 A 740 : MEASURES
 
 
No records found.

 
 
WDS 20338+4540 : VIRTUAL EYEPIECE
 
 

20338+4540 A   740A mag 9.64 Sp O5V 20338+4540 A   740B sep 0.7 P.A. 322.70 mag 9.95 virtual eyepiece
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Radius:
Components only
 
 
WDS 20338+4540 : ALADIN DSS IMAGE @ 20h 33m 50.35s +45° 39' 41.2"
 
 
 
 
WDS 20338+4540 A 740 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


20338+4540  A   740 distance=0' 20348+4531  ES  805 distance=14' 20343+4520  ES  804AB distance=20' 20343+4520  ES  804BC distance=21' 20317+4540  HJ 1533 distance=23' 20360+4555  STJ 103 distance=28' 20300+4556  LSC  91 distance=44' 20291+4544  BU 1135 distance=50' 20295+4516  ES  662 distance=52' 20376+4504  HJ 1555 distance=54' 20326+4635  ES  664 distance=57' 20329+4636  KRV  41 distance=58' 20293+4508  RAO 434 distance=58' 20394+4530  TDS1087 distance=60' 20339+4642  HDS2940Aa,Ab distance=62' 20339+4642  BU 1489AB distance=62' 20304+4634  ES  663 distance=66' 20325+4644  GII 101 distance=66' 20328+4646  POP 156 distance=68' 20281+4509  TDS1075 distance=69' 20322+4648  A   736AB distance=71' 20322+4648  DAM 636AC distance=71' 20303+4439  ES 1441 distance=72' 20349+4651  STTA208AB distance=72' 20349+4651  BKO 156AC distance=72' 20353+4650  MZA  37AB distance=72' 20353+4650  MZA  37AC distance=72' 20388+4629  BRT2268 distance=72' 20270+4539  HJ 1518 distance=73' 20282+4458  ES  661 distance=73' 20277+4507  ROE  43AB distance=73' 20277+4507  ROE  43AC distance=73' 20277+4507  ROE  43AD distance=73' 20277+4507  ROE  43AE distance=73' 20277+4507  ROE  43AF distance=73' 20277+4507  ROE  43AG distance=73' 20277+4507  BKO 154AH distance=73' 20277+4507  BKO 154AI distance=73' 20277+4507  BKO 154CJ distance=73' 20352+4651  MZA  30AB distance=73' 20352+4651  MZA  30AC distance=73' 20352+4651  MZA  30AD distance=73' 20352+4651  MZA  30AE distance=73' 20352+4651  MZA  30AF distance=73' 20277+4507  BKO 154EK distance=74' 20305+4434  ES 1442 distance=75' 20295+4437  TDT2320 distance=78' 20269+4611  BRT2263 distance=79' 20386+4438  ES  667 distance=80' 20264+4520  KPP 472 distance=81' 20328+4418  COU2645 distance=83' grafico limitrofi
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Show name coord_2000 discov# comp pa sep dist(')
Show 20338+4540 A 740 313 0.8 0
Show 20348+4531 ES 805 152 7.9 14
Show 20343+4520 ES 804 AB 117 30.8 20
Show 20343+4520 ES 804 BC 128 2.2 21
Show 20317+4540 HJ 1533 187 10.9 23
Show 20360+4555 STJ 103 338 1.3 28
Show 20300+4556 LSC 91 19 0.3 44
Show 20291+4544 BU 1135 335 1.5 50
Show 20295+4516 ES 662 142 5.7 52
Show 20376+4504 HJ 1555 354 13.8 54
Show 20326+4635 ES 664 55 9.0 57
Show 20329+4636 KRV 41 172 19.6 58
Show 20293+4508 RAO 434 162 1.2 58
Show 20394+4530 TDS1087 141 1.0 60
Show 20339+4642 HDS2940 Aa,Ab 46 0.3 62
Show 20339+4642 BU 1489 AB 16 116.5 62
Show 20304+4634 ES 663 110 5.0 66
Show 20325+4644 GII 101 289 0.4 66
Show 20328+4646 POP 156 4 3.2 68
Show 20281+4509 TDS1075 358 1.4 69
Show 20322+4648 A 736 AB 349 0.6 71
Show 20322+4648 DAM 636 AC 106 17.0 71
Show 20303+4439 ES 1441 127 2.0 72
Show 20349+4651 STTA208 AB 241 83.5 72
Show 20349+4651 BKO 156 AC 98 45.9 72
Show 20353+4650 MZA 37 AB 319 6.1 72
Show 20353+4650 MZA 37 AC 319 11.1 72
Show 20388+4629 BRT2268 320 3.4 72
Show 20270+4539 HJ 1518 86 15.3 73
Show 20282+4458 ES 661 156 6.9 73
Show 20277+4507 ROE 43 AB 317 17.4 73
Show 20277+4507 ROE 43 AC 312 52.6 73
Show 20277+4507 ROE 43 AD 271 42.4 73
Show 20277+4507 ROE 43 AE 282 82.9 73
Show 20277+4507 ROE 43 AF 336 87.1 73
Show 20277+4507 ROE 43 AG 282 102.4 73
Show 20277+4507 BKO 154 AH 224 18.4 73
Show 20277+4507 BKO 154 AI 63 24.2 73
Show 20277+4507 BKO 154 CJ 331 17.9 73
Show 20352+4651 MZA 30 AB 140 22.5 73
Show 20352+4651 MZA 30 AC 115 14.2 73
Show 20352+4651 MZA 30 AD 132 23.8 73
Show 20352+4651 MZA 30 AE 123 17.4 73
Show 20352+4651 MZA 30 AF 106 12.3 73
Show 20277+4507 BKO 154 EK 109 4.7 74
Show 20305+4434 ES 1442 265 2.7 75
Show 20295+4437 TDT2320 223 0.7 78
Show 20269+4611 BRT2263 34 4.1 79
Show 20386+4438 ES 667 185 9.8 80
Show 20264+4520 KPP 472 88 4.6 81
Show 20328+4418 COU2645 290 0.1 83

 
 
WDS 20338+4540 : COMPONENTS
 
 
  A
B pa=322.7°
sep=0.71"
 
 
20338+4540 A
 
 
Coord arcsec 2000 203350.35+453941.2 Mag 9.64 Spectral class O5V (blue) PmRA 0.00
PmDE -7.0 Tycho2 3573-00385-1
Tycho2
Tycho2 3573-00385-1 Pflag P RAmdeg 308.45977204 DEmdeg 45.66143118
PmRA -0.3 PmDE -6.8 E RAmdeg 17 E DEmdeg 15
E pmRA 1.3 E pmDE 1.2 EpRAm 1989.69 EpDEm 1989.98
Num 6 Q RAmdeg 1.0 Q DEmdeg 0.9 Q pmRA 1.0
Q pmDE 0.8 BTmag 10.028 E BTmag 0.027 VTmag 9.644
E VTmag 0.026 Prox 8 TYC T HIP
CCDM RAdeg 308.45986083 DEdeg 45.66139083 EpRA 1990 1.68
EpDE 1990 1.81 E RAdeg 16.8 E DEdeg 15.1 Posflg D
Corr 0.1
CCDM
Ccdm 20338+4540 RComp Comp A Note1
Note2 Discov num DRAs 2.31 DDEs -18.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.4 Sp PmNote *
PmRA -10 PmDE 6 Dm number +45 3216 Cat1 BD
Name2 +45 1716 Cat2 AGK2/3 HD M HD
ADS BDS A14018 M ADS BDS N IDS IDS 20306N4519A
HIC
 
 
20338+4540 B
 
 
Coord arcsec 2000 203350.31+453941.8 Mag 9.95 PmRA 0.00 PmDE -7.0
Tycho2 3573-00385-2 Calc delta mag 0.31 Calc coord yes
Tycho2
Tycho2 3573-00385-2 Pflag P RAmdeg 308.45977204 DEmdeg 45.66143118
PmRA -0.3 PmDE -6.8 E RAmdeg 17 E DEmdeg 15
E pmRA 1.3 E pmDE 1.2 EpRAm 1989.69 EpDEm 1989.98
Num 6 Q RAmdeg 1.0 Q DEmdeg 0.9 Q pmRA 1.0
Q pmDE 0.8 BTmag 10.377 E BTmag 0.034 VTmag 9.947
E VTmag 0.032 Prox 8 TYC T HIP
CCDM RAdeg 308.45961861 DEdeg 45.66154500 EpRA 1990 1.68
EpDE 1990 1.81 E RAdeg 21.9 E DEdeg 19.7 Posflg D
Corr 0.1
CCDM
Ccdm 20338+4540 RComp Comp B Note1
Note2 Discov num A 740 DRAs DDEs
R dRAs Year 1904 Theta 314 Rho 0.8
Obs 6 Vmag 10.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14018 M ADS BDS N IDS IDS 20306N4519B
HIC