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Doubles in session


Current system
21552+5030
BLL 56
LW Cyg


Nearby doubles
17' : 21549+5046
TDT3236

20' : 21573+5029
HDS3120

23' : 21554+5052
TDT3244

24' : 21558+5052
COU2656

30' : 21526+5013
ES 1175

36' : 21524+5054
TDT3210

40' : 21511+5023
HU 694

41' : 21511+5040
ES 827

42' : 21595+5037
HJ 1710

43' : 21596+5025
ES 830

43' : 21511+5047
TDT3191

51' : 22005+5038
TDT3288

52' : 21552+4938
RAO 467

54' : 21590+5111
ES 1108

56' : 21495+5019
TDT3180

57' : 21576+4938
HU 772

58' : 21492+5031
STF2832AB

63' : 21487+5035
ES 1105AB

64' : 21599+5116
TDT3281

65' : 21568+5132
TDT3253

66' : 21536+5132
ES 828

69' : 21494+5110
AZC 182AB

72' : 21534+4921
ES 524AB

74' : 21547+4916
ES 525

75' : 22015+5114
HJ 1716AB

76' : 21543+5145
KPP4256AB



Selections
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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21552+5030 BLL 56 (LW Cyg)

 
 
21h 55m 13.77s +50° 29' 49.8" P.A. 257.00 sep 84.4 mag 9.30,11.76 Sp R dist. 1785.71 pc (5824.99 l.y.)
 
 
Coord 2000 21552+5030 Discov num BLL  56 Comp Coord arcsec 2000 21 55 13.77 +50 29 49.8
Date first 1876 Date last 2015 Obs 10
Pa first 258 Pa last 257.3 P.A. Now (θ) 257.3°
Sep first 84.1 Sep last 84.369 Sep. Now (ρ) 84.369"
Mag pri 9.30 Mag sec 11.76 delta mag (ΔM) 2.46 Spectral class R (deep red)
Pri motion ra -002 Sec motion ra -006
Pri motion dec -002 Sec motion dec -005
Notes
rPM=0.64
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name LW Cyg Constellation Cygnus HIP 108205 Tycho2 3612-00332-1
Gaia DR2 1979813626637908608 HD 208512 BD BD+49 3673 Distance 1785.71
Distance ly 5824.99
 
 
WDS 21552+5030 BLL 56 (LW Cyg) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Bll1872 orb - Ball, R.S. .
Bll1872 Proc. Royal Irish Acad., June 1872
Bll1884 Ma j Ball, R.S. 1884DunOP...5....1B
Bll1884 Pub. Dunsink Obs. 5, 1, 1884
Bll1913A Ma - Ball, R.S. 1913QB811.B8.......
Bll1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Bll1932A - Ball, R.S. 1932QB821.A43......
Bll1932A cited in ADS (Aitken Double Star Cat.), 1932
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21552+5030 BLL 56 1991 3 257 84.3 9.30 11.83 R 215513.77+502949.8
21552+5030 BLL 56 2003 4 258 84.3 9.30 11.83 R 215513.77+502949.8
21552+5030 BLL 56 2010 6 258 84.0 9.30 11.76 R 215513.77+502949.8
21552+5030 BLL 56 2015 7 257 84.4 9.30 11.76 R 215513.77+502949.8

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

 
 
WDS 21552+5030 BLL 56 (LW Cyg) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21552+5030 BLL 56 (LW Cyg) : MEASURES
 
 
No records found.

 
 
WDS 21552+5030 (LW Cyg) : VIRTUAL EYEPIECE
 
 

21552+5030 BLL 56A mag 9.3 Sp R 21552+5030 BLL 56B sep 55.5 P.A. 250.50 mag 11.76 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21552+5030 (LW Cyg) : ALADIN DSS IMAGE @ 21h 55m 13.77s +50° 29' 49.8"
 
 
 
 
WDS 21552+5030 BLL 56 (LW Cyg) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21552+5030 BLL 56 distance=0' 21549+5046 TDT3236 distance=17' 21573+5029 HDS3120 distance=20' 21554+5052 TDT3244 distance=23' 21558+5052 COU2656 distance=24' 21526+5013 ES 1175 distance=30' 21524+5054 TDT3210 distance=36' 21511+5023 HU 694 distance=40' 21511+5040 ES 827 distance=41' 21595+5037 HJ 1710 distance=42' 21596+5025 ES 830 distance=43' 21511+5047 TDT3191 distance=43' 22005+5038 TDT3288 distance=51' 21552+4938 RAO 467 distance=52' 21590+5111 ES 1108 distance=54' 21495+5019 TDT3180 distance=56' 21576+4938 HU 772 distance=57' 21492+5031 STF2832AB distance=58' 21492+5031 CTT 10AD distance=58' 21492+5031 STF2832AC distance=58' 21492+5031 STF2832BC distance=58' 21487+5035 ES 1105AB distance=63' 21487+5035 ES 1105AC distance=63' 21599+5116 TDT3281 distance=64' 21568+5132 TDT3253 distance=65' 21536+5132 ES 828 distance=66' 21494+5110 AZC 182AB distance=69' 21534+4921 ES 524AB distance=72' 21534+4921 ES 524BC distance=72' 21547+4916 ES 525 distance=74' 22015+5114 HJ 1716AB distance=75' 22015+5114 HJ 1716AC distance=75' 22015+5114 HJ 1716BD distance=75' 21543+5145 KPP4256AB distance=76' 21502+5131 COU2655 distance=77' 21495+5127 GII 19 distance=79' 21526+4909 COU2445 distance=85' 22036+5004 TDT3316 distance=85' 21515+4910 ES 9008 distance=88' 22044+5049 CBL 98 distance=89' 21486+5136 HLD 48 distance=92' 22016+4921 ES 831AB distance=92' 22016+4921 ES 831AC distance=92' 22016+4921 ES 831AD distance=92' 22016+4921 ES 831AE distance=92' 22016+4921 ABH 156AF distance=92' 22016+4921 ABH 156AG distance=92' 22016+4921 ABH 156AH distance=92' 22016+4921 ABH 156AI distance=92' 22016+4921 ABH 156AJ distance=92' 22016+4921 ABH 156AK distance=92' 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 21552+5030 BLL 56 257 84.4
Show 21549+5046 TDT3236 232 0.5 17
Show 21573+5029 HDS3120 190 0.9 20
Show 21554+5052 TDT3244 122 0.6 23
Show 21558+5052 COU2656 65 1.1 24
Show 21526+5013 ES 1175 211 9.9 30
Show 21524+5054 TDT3210 342 0.7 36
Show 21511+5023 HU 694 192 1.6 40
Show 21511+5040 ES 827 242 3.1 41
Show 21595+5037 HJ 1710 284 12.2 42
Show 21596+5025 ES 830 306 4.2 43
Show 21511+5047 TDT3191 221 2.1 43
Show 22005+5038 TDT3288 47 0.7 51
Show 21552+4938 RAO 467 204 3.4 52
Show 21590+5111 ES 1108 249 6.9 54
Show 21495+5019 TDT3180 67 1.9 56
Show 21576+4938 HU 772 333 0.3 57
Show 21492+5031 STF2832 AB 213 13.2 58
Show 21492+5031 CTT 10 AD 104 125.2 58
Show 21492+5031 STF2832 AC 321 45.8 58
Show 21492+5031 STF2832 BC 335 51.5 58
Show 21487+5035 ES 1105 AB 298 7.8 63
Show 21487+5035 ES 1105 AC 96 9.8 63
Show 21599+5116 TDT3281 284 1.9 64
Show 21568+5132 TDT3253 348 0.7 65
Show 21536+5132 ES 828 92 7.7 66
Show 21494+5110 AZC 182 AB 354 57.1 69
Show 21534+4921 ES 524 AB 188 20.9 72
Show 21534+4921 ES 524 BC 3 4.7 72
Show 21547+4916 ES 525 123 5.3 74
Show 22015+5114 HJ 1716 AB 88 5.8 75
Show 22015+5114 HJ 1716 AC 297 7.0 75
Show 22015+5114 HJ 1716 BD 127 8.9 75
Show 21543+5145 KPP4256 AB 45 2.0 76
Show 21502+5131 COU2655 250 0.3 77
Show 21495+5127 GII 19 339 5.8 79
Show 21526+4909 COU2445 18 1.4 85
Show 22036+5004 TDT3316 304 0.5 85
Show 21515+4910 ES 9008 120 7.5 88
Show 22044+5049 CBL 98 314 37.1 89
Show 21486+5136 HLD 48 22 4.6 92
Show 22016+4921 ES 831 AB 140 2.7 92
Show 22016+4921 ES 831 AC 310 20.5 92
Show 22016+4921 ES 831 AD 26 13.8 92
Show 22016+4921 ES 831 AE 70 16.0 92
Show 22016+4921 ABH 156 AF 256 49.2 92
Show 22016+4921 ABH 156 AG 309 82.0 92
Show 22016+4921 ABH 156 AH 319 79.4 92
Show 22016+4921 ABH 156 AI 56 72.8 92
Show 22016+4921 ABH 156 AJ 104 59.4 92
Show 22016+4921 ABH 156 AK 98 95.9 92

 
 
WDS 21552+5030 : COMPONENTS
 
 
  A
B pa=250.5°
sep=55.55"
 
 
21552+5030 A
 
 
Componente originario normalizzato AB Name LW Cyg Coord arcsec 2000 215513.77+502949.8 Mag 9.3
Spectral class R (deep red) PmRA -2.00 PmDE -2.0 HIP 108205
Tycho2 3612-00332-1 HD 208512 BD BD+49 3673
Tycho2
Tycho2 3612-00332-1 Pflag X RAmdeg DEmdeg
PmRA PmDE E RAmdeg E DEmdeg
E pmRA E pmDE EpRAm EpDEm
Num Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 14.689 E BTmag 0.587 VTmag 9.301
E VTmag 0.018 Prox 843 TYC T HIP 108205
CCDM RAdeg 328.80736611 DEdeg 50.49715278 EpRA 1990 1.70
EpDE 1990 1.71 E RAdeg 15.1 E DEdeg 15.9 Posflg
Corr -0.1
Hipparcos
Catalog H HIP 108205 Proxy RAhms 21 55 13.77
DEdms +50 29 49.8 Vmag 9.23 VarFlag 2 R Vmag H
RAdeg 328.807 DEdeg 50.4972 AstroRef Plx -0.2
CCDM 21552+5030 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 208512 BD BD+49 3673
CD CP Dm number +49 3673 VIred 4.14
SpType R3 R SpType Coord arcsec 2000 215513.77+502949.8
Hipparcos 2
HIP 108205 Sn 5 So 0 Nc 1
RArad 5.7387713404 DErad 0.881341625 Plx 0.56 PmRA -1.57
PmDE -3.87 E RArad 1.68 E DErad 1.23 E Plx 0.98
E pmRA 1.81 E pmDE 1.47 Hpmag 8.6209 E Hpmag 0.006
SHp 0.081 VA 2 BV 4.1 E BV 0.51
VI 4.14
CCDM
Ccdm 21552+5030 RComp Comp A Note1
Note2 Discov num DRAs 1.75 DDEs -10.0
R dRAs 65 Year Theta Rho
Obs 2 Vmag 10.0 Sp NC PmNote
PmRA 22 PmDE 2 Dm number +49 3673 Cat1 BD
Name2 Cat2 HD 208512 M HD
ADS BDS M ADS BDS N IDS IDS 21515N5002A
HIC 108205
 
 
21552+5030 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 215508.28+502931.3 Mag 11.76 PmRA -6.00
PmDE -5.0 Calc delta mag 2.46 Calc coord yes
CCDM
Ccdm 21552+5030 RComp Comp B Note1
Note2 Discov num BUP DRAs -6.92 DDEs -28.5
R dRAs 65 Year 1876 Theta 258 Rho 84.1
Obs 3 Vmag 12.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21515N5002B
HIC