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Doubles in session


Current system
21441+2845
STF 2822 AB
Mu1 Cyg


Nearby doubles
21' : 21444+2824
KPP3373

28' : 21461+2855
BRT 58

29' : 21454+2819
J 3145

33' : 21452+2914
UC 4550

35' : 21418+2901
MLB 492

37' : 21462+2817
MLB 540AB

43' : 21416+2911
GRV 493

43' : 21469+2907
CVR 919

45' : 21474+2855
AG 420

45' : 21474+2834
A 300AB

48' : 21420+2924
MLB 539

51' : 21423+2800
GRV 494

54' : 21439+2751
HO 166

55' : 21410+2920
STT 448

57' : 21442+2942
MLB 493

58' : 21480+2819
MLB 541

60' : 21470+2930
GRV 503

64' : 21473+2932
STJ 58

65' : 21458+2945
DAM 236

67' : 21455+2948
DAM 237

68' : 21430+2951
KPP 498

70' : 21420+2741
RAO 465AB

71' : 21390+2826
ES 520

72' : 21401+2928
BRT 57

73' : 21458+2954
TDT3146

73' : 21420+2951
MLB 720



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 21441+2845 : COMPONENTS
 
 
  A B C D E F
B pa=309.7°
sep=1.88"
 
C pa=291.8°
sep=76.60"
pa=291.4°
sep=74.81"
 
D pa=44.8°
sep=197.77"
pa=45.4°
sep=197.94"
pa=62.0°
sep=238.36"
 
E pa=40.2°
sep=189.99"
pa=40.8°
sep=190.02"
pa=58.9°
sep=226.13"
pa=286.1°
sep=17.47"
 
F pa=71.8°
sep=111.47"
pa=72.6°
sep=112.48"
pa=87.9°
sep=177.12"
pa=197.6°
sep=110.68"
pa=188.6°
sep=111.59"
 
G pa=72.6°
sep=168.11"
pa=73.1°
sep=169.14"
pa=84.6°
sep=232.55"
pa=166.9°
sep=92.44"
pa=158.3°
sep=102.12"
pa=74.2°
sep=56.67"
 
 
21441+2845 A
 
 
Name Mu1 Cyg Coord arcsec 2000 214408.57+284433.4 Mag 4.75 Spectral class F6V (yellow-white)
PmRA 260.00 PmDE -243.0 SAO 89940 HIP 107310
Tycho2 2201-02078-2 HD 206826 HR 8309 GC 30438
BD BD+28 4169 Bayer Mu 1 Cygni Bayer name Mu1 Flamsteed 78 Cygni
Flamsteed name 78 Cyg
Tycho2
Tycho2 2201-02078-2 Pflag P RAmdeg 326.03572417 DEmdeg 28.74264837
PmRA 277.4 PmDE -251.1 E RAmdeg 3 E DEmdeg 3
E pmRA 2.7 E pmDE 2.6 EpRAm 1991.91 EpDEm 1992.01
Num 3 Q RAmdeg 1.0 Q DEmdeg 0.3 Q pmRA 1.0
Q pmDE 0.3 BTmag 6.785 E BTmag 0.014 VTmag 6.179
E VTmag 0.009 Prox 20 TYC T HIP 107310
CCDM B RAdeg 326.03454639 DEdeg 28.74346778 EpRA 1990 1.92
EpDE 1990 2.00 E RAdeg 3.3 E DEdeg 3.7 Posflg D
Corr 0.3
SAO
SAO 89940 DelFlag RA1950 PmRA1950 0.022
DE1950 PmDE1950 -0.238 Vmag 4.7 SpType F5
Double code Source 70 CatNum 30438 DM BD+28 4169
DMcomp A BDsup HD 206826 M HD 0
GC 30438 RA1950rad 5.68062827 DE1950rad 0.49770008 PmRA2000 0.0222
PmDE2000 -0.241
Hipparcos
Catalog H HIP 107310 Proxy H RAhms 21 44 08.40
DEdms +28 44 35.6 Vmag 4.49 VarFlag R Vmag H
RAdeg 326.035 DEdeg 28.7432 AstroRef A Plx 44.64
CCDM 260.33 - N CCDM I Nsys 2 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 302 Rho 2.002 HD BD BD+28 4169
CD CP Dm number +28 4169 VIred 0.55
SpType F6V R SpType Coord arcsec 2000 214408.40+284435.6
Hipparcos 2
HIP 107310 Sn 15 So 3 Nc 2
RArad 5.6903845519 DErad 0.5016638713 Plx 44.97 PmRA 260.72
PmDE -243.21 E RArad 0.33 E DErad 0.3 E Plx 0.43
E pmRA 0.36 E pmDE 0.31 Hpmag E Hpmag 0.0004
SHp 0.005 VA 0 BV 0.512 E BV 0.007
VI 0.58
 
 
21441+2845 B
 
 
Coord arcsec 2000 214408.46+284434.6 Coord calc 214408.46+284434.6 Mag 6.18 Spectral class G2V (yellow)
PmRA 260.00 PmDE -243.0 SAO 89939 HIP 107310
Tycho2 2201-02078-1 HD 206827 HR 8310 GC 30437
DM BD+28 4169 Flamsteed 78 Cygni Flamsteed name 78 Cyg Delta magnitude 1.43
Tycho2
Tycho2 2201-02078-1 Pflag P RAmdeg 326.03572417 DEmdeg 28.74264837
PmRA 277.4 PmDE -251.1 E RAmdeg 3 E DEmdeg 3
E pmRA 2.7 E pmDE 2.6 EpRAm 1991.91 EpDEm 1992.01
Num 3 Q RAmdeg 1.0 Q DEmdeg 0.3 Q pmRA 1.0
Q pmDE 0.3 BTmag 5.223 E BTmag 0.014 VTmag 4.745
E VTmag 0.009 Prox 20 TYC T HIP 107310
CCDM A RAdeg 326.03507722 DEdeg 28.74316972 EpRA 1990 1.92
EpDE 1990 2.02 E RAdeg 3.1 E DEdeg 3.3 Posflg D
Corr 0.3
SAO
SAO 89939 DelFlag RA1950 PmRA1950 0.0174
DE1950 PmDE1950 -0.215 Vmag 6.1 SpType F5
Double code Source 70 CatNum 30437 DM BD+28 4169
DMcomp B BDsup HD 206827 M HD 0
GC 30437 RA1950rad 5.68062366 DE1950rad 0.49769928 PmRA2000 0.0176
PmDE2000 -0.219
Hipparcos
Catalog H HIP 107310 Proxy H RAhms 21 44 08.40
DEdms +28 44 35.6 Vmag 4.49 VarFlag R Vmag H
RAdeg 326.035 DEdeg 28.7432 AstroRef A Plx 44.64
CCDM 260.33 - N CCDM I Nsys 2 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 302 Rho 2.002 HD BD BD+28 4169
CD CP Dm number +28 4169 VIred 0.55
SpType F6V R SpType Coord arcsec 2000 214408.40+284435.6
Hipparcos 2
HIP 107310 Sn 15 So 3 Nc 2
RArad 5.6903845519 DErad 0.5016638713 Plx 44.97 PmRA 260.72
PmDE -243.21 E RArad 0.33 E DErad 0.3 E Plx 0.43
E pmRA 0.36 E pmDE 0.31 Hpmag E Hpmag 0.0004
SHp 0.005 VA 0 BV 0.512 E BV 0.007
VI 0.58
 
 
21441+2845 C
 
 
Coord arcsec 2000 214403.16+284501.8 Mag 12.93 Delta magnitude 8.18 Coordinate calculated yes
 
 
21441+2845 D
 
 
Coord arcsec 2000 214419.17+284653.7 Coord calc 214419.17+284653.7 Mag 6.94 Spectral class A5 (white)
PmRA -1.00 PmDE -54.0 SAO 89944 HIP 107326
Tycho2 2201-00786-1 HD 206874 GC 30442 BD BD+28 4171
Delta magnitude 2.19
Tycho2
Tycho2 2201-00786-1 Pflag RAmdeg 326.07993096 DEmdeg 28.78160134
PmRA -1.1 PmDE -54.5 E RAmdeg 4 E DEmdeg 4
E pmRA 1.1 E pmDE 1.0 EpRAm 1991.64 EpDEm 1991.67
Num 12 Q RAmdeg 0.8 Q DEmdeg 0.8 Q pmRA 0.6
Q pmDE 0.8 BTmag 7.329 E BTmag 0.015 VTmag 6.940
E VTmag 0.010 Prox 999 TYC T HIP 107326
CCDM RAdeg 326.07993361 DEdeg 28.78172278 EpRA 1990 1.93
EpDE 1990 1.98 E RAdeg 3.5 E DEdeg 4.0 Posflg
Corr 0.2
SAO
SAO 89944 DelFlag RA1950 PmRA1950 -0.0006
DE1950 PmDE1950 -0.048 Vmag 6.9 SpType A5
Double code Source 70 CatNum 30442 DM BD+28 4171
DMcomp BDsup HD 206874 M HD 0
GC 30442 RA1950rad 5.68147705 DE1950rad 0.49832916 PmRA2000 -0.0005
PmDE2000 -0.052
Hipparcos
Catalog H HIP 107326 Proxy RAhms 21 44 19.18
DEdms +28 46 54.2 Vmag 6.89 VarFlag R Vmag H
RAdeg 326.08 DEdeg 28.7817 AstroRef Plx 12.99
CCDM 0.48 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD BD BD+28 4171
CD CP Dm number +28 4171 VIred 0.48
SpType A5 R SpType Coord arcsec 2000 214419.18+284654.2
Hipparcos 2
HIP 107326 Sn 5 So 0 Nc 1
RArad 5.6911684504 DErad 0.5023360234 Plx 11.6 PmRA -0.7
PmDE -53.92 E RArad 0.44 E DErad 0.45 E Plx 0.63
E pmRA 0.53 E pmDE 0.54 Hpmag E Hpmag 0.0011
SHp 0.008 VA 0 BV 0.411 E BV 0.015
VI 0.48
 
 
21441+2845 E
 
 
Coord arcsec 2000 214417.89+284658.5 Mag 13.13 Delta magnitude 8.38 Coordinate calculated yes
 
 
21441+2845 F
 
 
Coord arcsec 2000 214416.62+284508.2 Mag 12.64 PmRA 6.00 PmDE 6.0
Delta magnitude 7.89 Coordinate calculated yes
 
 
21441+2845 G
 
 
Coord arcsec 2000 214420.77+284523.7 Mag 13.77 PmRA 4.00 PmDE 2.0
Delta magnitude 9.02 Coordinate calculated yes