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Doubles in session


Current system
21434+3817
S 799 BD


Nearby doubles
5' : 21436+3822
ES 2522

6' : 21432+3815
DAM 232

18' : 21432+3801
BLL 55AB

23' : 21440+3757
SEI1533

25' : 21450+3800
LDS1054

26' : 21415+3817
SEI1532

31' : 21457+3800
DAM1461

36' : 21421+3848
ALI 980

36' : 21466+3815
COU1639

36' : 21408+3806
TDS1140

37' : 21438+3742
TDT3122

41' : 21453+3853
TDT3139

42' : 21399+3813
ES 2066

44' : 21464+3847
MLB 961

45' : 21429+3734
ES 2521AB

47' : 21403+3843
ALI 979

47' : 21429+3904
GRV 496

52' : 21412+3735
TDT3109

54' : 21398+3749
A 1444

57' : 21403+3858
MLB 787

57' : 21484+3806
ALI 694

58' : 21471+3737
GRV 504

59' : 21386+3822
TDT3078

62' : 21384+3808
TDT3073

64' : 21436+3715
TDS1143

65' : 21387+3848
ALI 977



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 21434+3817 : COMPONENTS
 
 
  A Ab B C
Ab pa=148.7°
sep=1.77"
 
B pa=59.8°
sep=149.95"
pa=59.1°
sep=149.93"
 
C pa=324.8°
sep=123.16"
pa=324.9°
sep=124.92"
pa=277.2°
sep=202.08"
 
D pa=57.5°
sep=123.19"
pa=56.7°
sep=123.23"
pa=250.2°
sep=27.31"
pa=101.2°
sep=178.19"
 
 
21434+3817 A
 
 
Name 79 Cyg Coord arcsec 2000 214325.63+381701.0 Mag 5.69 Spectral class A0V (white)
PmRA 34.00 PmDE -5.0 SAO 71643 HIP 107253
Tycho2 3184-02738-1 HD 206774 HR 8307 GC 30421
BD BD+37 4408 Flamsteed 79 Cygni Flamsteed name 79 Cyg
Tycho2
Tycho2 3184-02738-1 Pflag RAmdeg 325.85688818 DEmdeg 38.28359186
PmRA 35.2 PmDE -3.1 E RAmdeg 3 E DEmdeg 3
E pmRA 1.2 E pmDE 1.1 EpRAm 1991.48 EpDEm 1991.60
Num 11 Q RAmdeg 1.0 Q DEmdeg 2.0 Q pmRA 1.1
Q pmDE 2.1 BTmag 5.691 E BTmag 0.014 VTmag 5.694
E VTmag 0.009 Prox 999 TYC T HIP 107253
CCDM RAdeg 325.85678333 DEdeg 38.28359917 EpRA 1990 1.57
EpDE 1990 1.69 E RAdeg 3.3 E DEdeg 3.2 Posflg
Corr 0.3
SAO
SAO 71643 DelFlag RA1950 PmRA1950 0.0028
DE1950 PmDE1950 0.007 Vmag 5.6 SpType A0
Double code Source 70 CatNum 30421 DM BD+37 4408
DMcomp BDsup HD 206774 M HD 0
GC 30421 RA1950rad 5.67823939 DE1950rad 0.66416919 PmRA2000 0.003
PmDE2000 0.004
Hipparcos
Catalog H HIP 107253 Proxy RAhms 21 43 25.63
DEdms +38 17 01.0 Vmag 5.69 VarFlag R Vmag G
RAdeg 325.857 DEdeg 38.2836 AstroRef Plx 11.97
CCDM 21435+3818 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 206774 BD BD+37 4408
CD CP Dm number +37 4408 VIred 0.01
SpType A0V R SpType Coord arcsec 2000 214325.63+381701.0
Hipparcos 2
HIP 107253 Sn 5 So 0 Nc 1
RArad 5.6872736827 DErad 0.668174879 Plx 11.88 PmRA 33.93
PmDE -4.58 E RArad 0.16 E DErad 0.17 E Plx 0.28
E pmRA 0.18 E pmDE 0.21 Hpmag 5.7095 E Hpmag 0.0005
SHp 0.006 VA 0 BV -0.01 E BV 0.042
VI 0.01
 
 
21434+3817 Ab
 
 
Coord arcsec 2000 214325.71+381659.5 Mag 11.1 Calc delta mag 5.41 Calc coord yes
 
 
21434+3817 B
 
 
Coord arcsec 2000 214336.64+381816.4 Coord calc 214336.64+381816.4 Mag 6.98 Spectral class A0 (white)
PmRA 25.00 PmDE -26.0 SAO 71646 HIP 107268
Tycho2 3184-01386-1 HD 206807 GC 30425 DM BD+37 4410
Calc delta mag 1.29
Tycho2
Tycho2 3184-01386-1 Pflag RAmdeg 325.90270424 DEmdeg 38.30456204
PmRA 26.2 PmDE -26.9 E RAmdeg 4 E DEmdeg 4
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.20 EpDEm 1991.41
Num 15 Q RAmdeg 1.2 Q DEmdeg 0.8 Q pmRA 1.2
Q pmDE 0.8 BTmag 7.109 E BTmag 0.015 VTmag 6.997
E VTmag 0.010 Prox 999 TYC T HIP 107268
CCDM RAdeg 325.90262639 DEdeg 38.30462389 EpRA 1990 1.58
EpDE 1990 1.72 E RAdeg 3.7 E DEdeg 3.5 Posflg
Corr 0.3
SAO
SAO 71646 DelFlag RA1950 PmRA1950 0.0018
DE1950 PmDE1950 -0.02 Vmag 6.9 SpType A0
Double code Source 70 CatNum 30425 DM BD+37 4410
DMcomp BDsup HD 206807 M HD 0
GC 30425 RA1950rad 5.67904165 DE1950rad 0.66453718 PmRA2000 0.002
PmDE2000 -0.023
Hipparcos
Catalog H HIP 107268 Proxy RAhms 21 43 36.63
DEdms +38 18 16.7 Vmag 6.99 VarFlag R Vmag H
RAdeg 325.903 DEdeg 38.3046 AstroRef Plx 8.86
CCDM 21435+3818 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 206807 BD
CD CP Dm number VIred 0.09
SpType A0 R SpType Coord arcsec 2000 214336.63+381816.7
Hipparcos 2
HIP 107268 Sn 5 So 0 Nc 1
RArad 5.688073827 DErad 0.6685418666 Plx 8.75 PmRA 24.61
PmDE -26.24 E RArad 0.27 E DErad 0.28 E Plx 0.47
E pmRA 0.32 E pmDE 0.37 Hpmag 7.0311 E Hpmag 0.0009
SHp 0.009 VA 0 BV 0.107 E BV 0.006
VI 0.12
 
 
21434+3817 C
 
 
Coord arcsec 2000 214319.61+381841.7 Mag 10.24 PmRA 11.00 PmDE -6.0
Calc delta mag 4.55 Calc coord yes
 
 
21434+3817 D
 
 
Coord arcsec 2000 214334.46+381807.1 Mag 13.9 PmRA 5.00 PmDE -30.0
Calc delta mag 8.21 Calc coord yes