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Current system
21265+5245
BU 369 AD


Nearby doubles
15' : 21254+5235
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STF2803AB

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KPP 810

46' : 21224+5218
ES 2708

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ARY 88AB

47' : 21227+5214
HU 591

53' : 21323+5245
BU 370AB

54' : 21271+5151
CVR 246

54' : 21206+5241
MLR 644

61' : 21200+5259
STF2789AB

62' : 21211+5323
ES 139

65' : 21195+5256
A 1693

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S 786

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A 1695

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HEI 593

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ES 98AB

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CVR 240

73' : 21322+5336
TDT3015

73' : 21185+5248
TDT2894

77' : 21316+5346
CBL 94

81' : 21178+5229
SKF 346



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

21265+5245 BU 369 AD

 
 
21h 26m 29.08s +52° 44' 52.7" P.A. 331.00 sep 25.8 mag 7.59,15.10 Sp B9.5V dist. 198.81 pc (648.52 l.y.)
 
 
Coord 2000 21265+5245 Discov num BU  369 Comp AD Coord arcsec 2000 21 26 29.08 +52 44 52.7
Date first 1998 Date last 2015 Obs 6
Pa first 331 Pa last 330.6 P.A. Now (θ) 330.6°
Sep first 25.7 Sep last 25.833 Sep. Now (ρ) 25.833"
Mag pri 7.59 Mag sec 15.10 delta mag (ΔM) 7.51 Spectral class B9.5V (blue-white)
Pri motion ra +011 Sec motion ra -011
Pri motion dec -005 Sec motion dec -010
Notes N (See Notes)
rPM=1.518
This double is not physical.
 
 
21265+5245 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 204401 33431 21 26 29 +52 44 53 BU 369 AB 2015 14 31 16.0 7.59 11.80 4.21
Show 33431 21 26 29 +52 44 53 BU 369 AC 2014 8 61 49.3 7.59 12.42 4.83
Show 33431 21 26 29 +52 44 53 BU 369 AD 2015 6 331 25.8 7.59 15.10 7.51 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 33431 HIP 105867 Tycho2 3966-00268-1
Gaia DR2 2172760634351847936 HD 204401 BD BD+52 2938 Distance 198.81
Distance ly 648.52
 
 
WDS 21265+5245 BU 369 AD : NOTES
 
 
discov_num notes refcode
BU 369 There is a 14th mag star a little farther than the companion measured,
in the direction 336deg. Bu_1894
 
 
REFERENCES
 
 
refcode metd author reference
Bu_1894 Ma j Burnham, S.W. 1894PLicO...2....3B
Bu_1894 Pub. Lick Obs. 2, 3, 1894 (includes most data from Bu_1893a) 1893AN....131..329B
 
 
DISCOVERER
 
 
idgroup discov author
1 BU Burnham, S.W. (BU 1 - 81)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21265+5245 BU 369 AD 2000 1 331 25.7 7.80 15.10 212629.08+524452.7
21265+5245 BU 369 AD 2003 3 331 25.7 7.80 15.10 N 212629.08+524452.7
21265+5245 BU 369 AD 2015 3 331 25.8 7.59 15.10 B9.5V N 212629.08+524452.7

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

 
 
WDS 21265+5245 BU 369 AD : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21265+5245 BU 369 AD : MEASURES
 
 
No records found.

 
 
WDS 21265+5245 : VIRTUAL EYEPIECE
 
 

21265+5245 BU 369A mag 7.59 Sp B9.5V 21265+5245 BU 369B sep 14.6 P.A. 19.90 mag 11.8 21265+5245 BU 369C sep 35.5 P.A. 47.20 mag 12.42 21265+5245 BU 369D sep 23.8 P.A. 341.20 mag 15.1 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 21265+5245 : ALADIN DSS IMAGE @ 21h 26m 29.08s +52° 44' 52.7"
 
 
 
 
WDS 21265+5245 BU 369 AD : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21265+5245 BU 369AB distance=1' 21265+5245 BU 369AC distance=1' 21265+5245 BU 369AD distance=1' 21254+5235 CVR 243 distance=15' 21251+5229 HU 592 distance=21' 21241+5227 ES 1006 distance=29' 21233+5249 TOI1361 distance=30' 21259+5214 CVR 244 distance=32' 21299+5256 STF2803AB distance=33' 21299+5256 GUI 35AC distance=33' 21280+5317 HDS3055 distance=36' 21238+5322 KPP 810 distance=45' 21224+5218 ES 2708 distance=46' 21315+5237 ARY 88AB distance=46' 21315+5237 ARY 88AC distance=46' 21315+5237 ARY 88AD distance=46' 21227+5214 HU 591 distance=47' 21323+5245 A 1698BC distance=53' 21323+5245 A 1698BD distance=53' 21323+5245 BU 370AB distance=53' 21271+5151 CVR 246 distance=54' 21206+5241 MLR 644 distance=54' 21200+5259 STF2789AB distance=61' 21200+5259 STF2789AC distance=61' 21211+5323 ES 139 distance=62' 21195+5256 A 1693 distance=65' 21197+5303 S 786 distance=65' 21199+5319 A 1695 distance=69' 21194+5219 ES 98CD distance=69' 21196+5216 HEI 593 distance=70' 21194+5219 ES 98AB distance=70' 21194+5219 ES 98AC distance=70' 21194+5219 ES 98BC distance=70' 21211+5337 CVR 240 distance=72' 21297+5139 KPP 690BC distance=72' 21322+5336 TDT3015 distance=73' 21185+5248 TDT2894 distance=73' 21316+5346 CBL 94 distance=77' 21178+5229 SKF 346 distance=81' 21182+5217 HEI 592 distance=81' 21199+5150 STJ 116 distance=82' 21223+5132 CVR 241 distance=83' 21353+5210 HU 594AB distance=89' 21353+5210 HU 594AC distance=89' 21203+5354 TDT2910 distance=90' 21255+5418 A 1697 distance=94' 21344+5349 GIC 167 distance=97' 21252+5110 CBL 92 distance=97' 21254+5108 SKF2530 distance=98' 21295+5111 SKF 57 distance=98' 21373+5244 A 1700BD distance=98' 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 21265+5245 BU 369 AB 31 16.0 1
Show 21265+5245 BU 369 AC 61 49.3 1
Show 21265+5245 BU 369 AD 331 25.8 1
Show 21254+5235 CVR 243 319 113.1 15
Show 21251+5229 HU 592 325 0.8 21
Show 21241+5227 ES 1006 48 8.2 29
Show 21233+5249 TOI1361 142 8.2 30
Show 21259+5214 CVR 244 112 54.4 32
Show 21299+5256 STF2803 AB 285 25.9 33
Show 21299+5256 GUI 35 AC 2 87.6 33
Show 21280+5317 HDS3055 35 0.4 36
Show 21238+5322 KPP 810 76 7.0 45
Show 21224+5218 ES 2708 40 29.9 46
Show 21315+5237 ARY 88 AB 11 46.3 46
Show 21315+5237 ARY 88 AC 110 88.7 46
Show 21315+5237 ARY 88 AD 56 95.0 46
Show 21227+5214 HU 591 130 0.8 47
Show 21323+5245 A 1698 BC 4.0 53
Show 21323+5245 A 1698 BD 234 8.6 53
Show 21323+5245 BU 370 AB 325 3.4 53
Show 21271+5151 CVR 246 53 69.8 54
Show 21206+5241 MLR 644 211 1.6 54
Show 21200+5259 STF2789 AB 113 6.9 61
Show 21200+5259 STF2789 AC 171 133.1 61
Show 21211+5323 ES 139 352 5.7 62
Show 21195+5256 A 1693 74 2.8 65
Show 21197+5303 S 786 298 47.9 65
Show 21199+5319 A 1695 193 0.5 69
Show 21194+5219 ES 98 CD 259 7.6 69
Show 21196+5216 HEI 593 335 1.8 70
Show 21194+5219 ES 98 AB 308 25.9 70
Show 21194+5219 ES 98 AC 87 29.8 70
Show 21194+5219 ES 98 BC 107 51.9 70
Show 21211+5337 CVR 240 21 64.4 72
Show 21297+5139 KPP 690 BC 117 6.2 72
Show 21322+5336 TDT3015 300 1.9 73
Show 21185+5248 TDT2894 187 2.4 73
Show 21316+5346 CBL 94 49 13.6 77
Show 21178+5229 SKF 346 305 55.9 81
Show 21182+5217 HEI 592 70 4.1 81
Show 21199+5150 STJ 116 53 1.4 82
Show 21223+5132 CVR 241 156 75.0 83
Show 21353+5210 HU 594 AB 264 3.7 89
Show 21353+5210 HU 594 AC 87 59.2 89
Show 21203+5354 TDT2910 287 0.7 90
Show 21255+5418 A 1697 251 3.8 94
Show 21344+5349 GIC 167 45 26.8 97
Show 21252+5110 CBL 92 342 9.1 97
Show 21254+5108 SKF2530 101 8.1 98
Show 21295+5111 SKF 57 232 4.5 98
Show 21373+5244 A 1700 BD 246 7.2 98

 
 
WDS 21265+5245 : COMPONENTS
 
 
  A B C
B pa=19.9°
sep=14.59"
 
C pa=47.2°
sep=35.47"
pa=63.7°
sep=23.47"
 
D pa=341.2°
sep=23.78"
pa=304.8°
sep=15.40"
pa=267.3°
sep=33.72"
 
 
21265+5245 A
 
 
Name HD 204401 Coord arcsec 2000 212629.08+524452.7 Mag 7.59 Spectral class B9.5V (blue-white)
PmRA 11.00 PmDE -5.0 SAO 33431 HIP 105867
Tycho2 3966-00268-1 HD 204401 ADS 14989 BD BD+52 2938
Tycho2
Tycho2 3966-00268-1 Pflag RAmdeg 321.62120687 DEmdeg 52.74795457
PmRA 12.6 PmDE -6.5 E RAmdeg 4 E DEmdeg 4
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.40 EpDEm 1991.54
Num 10 Q RAmdeg 1.2 Q DEmdeg 1.0 Q pmRA 1.2
Q pmDE 0.9 BTmag 7.576 E BTmag 0.015 VTmag 7.594
E VTmag 0.011 Prox 999 TYC T HIP 105867
CCDM RAdeg 321.62115889 DEdeg 52.74796944 EpRA 1990 1.62
EpDE 1990 1.72 E RAdeg 4.3 E DEdeg 4.4 Posflg
Corr 0.1
SAO
SAO 33431 DelFlag RA1950 PmRA1950 0.0015
DE1950 PmDE1950 -0.012 Vmag 7.6 SpType B9
Double code Source 37 CatNum 7077 DM BD+52 2938
DMcomp BDsup HD 204401 M HD 0
GC RA1950rad 5.60612924 DE1950rad 0.91682875 PmRA2000 0.0019
PmDE2000 -0.015
Hipparcos
Catalog H HIP 105867 Proxy RAhms 21 26 29.08
DEdms +52 44 52.7 Vmag 7.6 VarFlag R Vmag H
RAdeg 321.621 DEdeg 52.748 AstroRef Plx 4.8
CCDM 21265+5245 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 204401 BD BD+52 2938
CD CP Dm number +52 2938 VIred 0.02
SpType B9 R SpType Coord arcsec 2000 212629.08+524452.7
Hipparcos 2
HIP 105867 Sn 5 So 0 Nc 1
RArad 5.6133481135 DErad 0.9206257467 Plx 5.03 PmRA 12.33
PmDE -6.33 E RArad 0.4 E DErad 0.41 E Plx 0.49
E pmRA 0.47 E pmDE 0.47 Hpmag 7.6025 E Hpmag 0.0012
SHp 0.009 VA 0 BV -0.023 E BV 0.01
VI 0
CCDM
Ccdm 21265+5245 RComp Comp A Note1
Note2 Discov num DRAs -1.12 DDEs -8.2
R dRAs 10 Year Theta Rho
Obs 3 Vmag 7.8 Sp B9 PmNote *
PmRA -20 PmDE -16 Dm number +52 2938 Cat1 BD
Name2 +52 1494 Cat2 AGK2/3 HD 204401 M HD
ADS BDS A14989 M ADS BDS N IDS IDS 21232N5219A
HIC 105867
 
 
21265+5245 B
 
 
Coord arcsec 2000 212629.63+524506.4 Mag 11.8 PmRA 9.00 PmDE -3.0
Calc delta mag 4.21 Calc coord yes
CCDM
Ccdm 21265+5245 RComp Comp B Note1
Note2 Discov num BU 369 DRAs DDEs
R dRAs Year 1891 Theta 031 Rho 16.3
Obs 5 Vmag 11.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14989 M ADS BDS N IDS IDS 21232N5219B
HIC
 
 
21265+5245 C
 
 
Coord arcsec 2000 212631.95+524516.8 Mag 12.42 PmRA -6.00 PmDE -3.0
Calc delta mag 4.83 Calc coord yes
CCDM
Ccdm 21265+5245 RComp Comp C Note1
Note2 Discov num BU 369 DRAs DDEs
R dRAs Year 1905 Theta 063 Rho 51.0
Obs 2 Vmag 12.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14989 M ADS BDS N IDS IDS 21232N5219C
HIC
 
 
21265+5245 D
 
 
Coord arcsec 2000 212628.23+524515.2 Mag 15.1 PmRA -11.00 PmDE -10.0
Calc delta mag 7.51 Calc coord yes