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Current system
21179+3454
STT 433 AB
Ups Cyg


Nearby doubles
6' : 21183+3456
BU 289AB

7' : 21181+3500
SLE 383

9' : 21173+3457
TDT2886

25' : 21186+3430
HU 769

32' : 21177+3423
SLE 381

33' : 21197+3518
SLE 386AB

35' : 21156+3512
TDT2863

36' : 21159+3428
SLE 377

38' : 21171+3530
SLE 378

39' : 21190+3418
COU 131

46' : 21145+3437
HU 768

47' : 21192+3411
SLE 385

48' : 21206+3420
JNN 129

50' : 21214+3517
GRV 454

50' : 21180+3405
RAO 621

50' : 21140+3504
ES 2258

51' : 21203+3535
TDT2911

52' : 21138+3500
J 3128AB

52' : 21146+3423
SLE 374

52' : 21217+3436
COU1334

54' : 21147+3529
TDT2852

54' : 21171+3546
BU 162AB

54' : 21139+3513
TDT2841

58' : 21143+3418
STTA216

59' : 21218+3528
TDT2923

59' : 21225+3509
POP 50



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.
 
 
WDS 21179+3454 : COMPONENTS
 
 
  A B C D
B pa=219.4°
sep=15.13"
 
C pa=183.0°
sep=22.06"
pa=140.7°
sep=13.35"
 
D pa=312.6°
sep=50.79"
pa=328.9°
sep=53.80"
pa=327.3°
sep=67.04"
 
E pa=63.1°
sep=29.22"
pa=55.0°
sep=43.50"
pa=37.6°
sep=44.52"
pa=108.4°
sep=66.88"
 
 
21179+3454 A
 
 
Name Ups Cyg Coord arcsec 2000 211755.07+345348.8 Mag 4.36 Spectral class B2Vne (blue-white)
PmRA 14.00 PmDE -2.0 SAO 71173 HIP 105138
Tycho2 2710-02647-1 HD 202904 HR 8146 GC 29802
ADS 14831 BD BD+34 4371 Bayer Upsilon Cygni Bayer name Ups Cyg
Flamsteed 66 Cygni Flamsteed name 66 Cyg FK5 1559
Tycho2
Tycho2 2710-02647-1 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 4.240 E BTmag 0.014 VTmag 4.361
E VTmag 0.009 Prox 218 TYC T HIP 105138
CCDM RAdeg 319.47945056 DEdeg 34.89688250 EpRA 1990 1.65
EpDE 1990 1.66 E RAdeg 3.2 E DEdeg 3.1 Posflg
Corr 0.2
SAO
SAO 71173 DelFlag RA1950 PmRA1950 0.0009
DE1950 PmDE1950 0 Vmag 4.4 SpType B3p
Double code Source 74 CatNum 1559 DM BD+34 4371
DMcomp BDsup HD 202904 M HD 0
GC 29802 RA1950rad 5.56698616 DE1950rad 0.60538621 PmRA2000 0.0011
PmDE2000 -0.003
Hipparcos
Catalog H HIP 105138 Proxy RAhms 21 17 55.07
DEdms +34 53 48.8 Vmag 4.41 VarFlag 2 R Vmag H
RAdeg 319.479 DEdeg 34.8969 AstroRef Plx 3.62
CCDM 21179+3454 N CCDM I Nsys 1 Ncomp 1
MultFlag G Source Qual M HIP
Theta Rho HD 202904 BD BD+34 4371
CD CP Dm number +34 4371 VIred -0.1
SpType B2Vne R SpType Coord arcsec 2000 211755.07+345348.8
Hipparcos 2
HIP 105138 Sn 1 So 1 Nc 1
RArad 5.5759682894 DErad 0.6090654747 Plx 5.08 PmRA 10.03
PmDE 6.49 E RArad 0.3 E DErad 0.36 E Plx 0.55
E pmRA 0.33 E pmDE 0.38 Hpmag 4.3744 E Hpmag 0.0037
SHp 0.107 VA 2 BV -0.103 E BV 0.009
VI -0.09
CCDM
Ccdm 21179+3454 RComp Comp A Note1
Note2 Discov num DRAs 1.05 DDEs -11.5
R dRAs 10 Year Theta Rho
Obs 3 Vmag 4.4 Sp B3 PmNote *
PmRA 11 PmDE 0 Dm number +34 4371 Cat1 BD
Name2 +34 2160 Cat2 AGK2/3 HD 202904 M HD
ADS BDS A14831 M ADS BDS N IDS IDS 21138N3429A
HIC 105138
 
 
21179+3454 B
 
 
Coord arcsec 2000 211754.29+345337.1 Coord calc 211754.29+345337.1 Mag 10.8 Spectral class F8III: (yellow-white)
PmRA 14.00 PmDE 3.0 Calc delta mag 6.44
CCDM
Ccdm 21179+3454 RComp Comp B Note1
Note2 Discov num STT 433 DRAs DDEs
R dRAs Year 1849 Theta 220 Rho 15.1
Obs 10 Vmag 10.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14831 M ADS BDS N IDS IDS 21138N3429B
HIC
 
 
21179+3454 C
 
 
Coord arcsec 2000 211754.98+345326.8 Mag 9.95 Calc delta mag 5.59 Calc coord yes
CCDM
Ccdm 21179+3454 RComp Comp C Note1
Note2 Discov num STT 433 DRAs DDEs
R dRAs Year 1958 Theta 181 Rho 21.5
Obs 10 Vmag 10.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14831 M ADS BDS N N IDS IDS 21138N3429C
HIC
 
 
21179+3454 D
 
 
Coord arcsec 2000 211752.03+345423.2 Mag 13.1 PmRA -8.00 PmDE -8.0
Calc delta mag 8.74 Calc coord yes
 
 
21179+3454 E
 
 
Coord arcsec 2000 211757.19+345402.0 Mag 13.7 Calc delta mag 9.34 Calc coord yes