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Doubles in session


Current system
21424+4105
KUI 108 AB


Nearby doubles
3' : 21426+4103
BU 688AB

8' : 21422+4057
DAM 231

13' : 21419+4058
MLB 30

19' : 21412+4117
COU1977

19' : 21416+4048
S 796AB

20' : 21431+4122
COU1978

36' : 21396+4049
MLB 29

37' : 21456+4110
TDT3144

42' : 21408+4027
TDT3102

44' : 21417+4022
TDT3111

45' : 21431+4021
TDT3121

51' : 21395+4144
BU 449AB

53' : 21458+4029
ES 1693

57' : 21461+4143
TDT3148

63' : 21409+4205
TDT3104

67' : 21365+4105
TDT3055

68' : 21456+4202
TDT3143

70' : 21380+4153
A 402

71' : 21373+4145
GRV 486

71' : 21473+4148
A 404AB

73' : 21398+4211
TDT3094

73' : 21361+4048
TDT3051

74' : 21369+4025
DRS 20

78' : 21454+3955
SEI1534

81' : 21494+4058
TDT3178

82' : 21354+4128
GRV 480



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

21424+4105 KUI 108 AB

 
 
21h 42m 22.94s +41° 04' 37.3" P.A. 14.00 sep 0.2 mag 6.33,6.72 Sp A0V dist. 126.42 pc (412.38 l.y.)
 
 
Coord 2000 21424+4105 Discov num KUI 108 Comp AB Coord arcsec 2000 21 42 22.94 +41 04 37.3
Date first 1937 Date last 2014 Obs 143
Pa first 4 Pa last 13.6 P.A. Now (θ) 302.7°
Sep first 0.2 Sep last 0.203 Sep. Now (ρ) 0.119"
Mag pri 6.33 Mag sec 6.72 delta mag (ΔM) 0.39 Spectral class A0V (white)
Pri motion ra +031 Sec motion ra
Pri motion dec -005 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
21424+4105 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 51207 21 42 23 +41 04 37 KUI 108 AB 2014 143 14 0.2 6.33 6.72 0.39 Y <===
Show HD 206644 51207 21 42 23 +41 04 37 ARY 129 AB,C 2017 1 132 145.5 6.30 7.80 1.50
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 51207 HIP 107162 Tycho2 3188-01949-1
HD 206644 HR 8300 GC 30394 BD BD+40 4615
Flamsteed 77 Cygni Flamsteed name 77 Cyg Distance 126.42 Distance ly 412.38
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier21424+4105 KUI 108
coord_arcsec_2000214222.94+410437.3
Period (P)26.49y Periastron (T)1974.72y Semi-major axis (a)0.153a
Eccentricity (e)0.333 Inclination (i)142.4° Longitude of periastron (ω)176.1°
Node (Ω)12.3° Notesn ReferenceHrt2000c
Equinox2000 Last observation1997 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 223.8 0.099
2001 200.2 0.102
2002 177.4 0.102
2003 154.3 0.101
2004 130.8 0.101
2005 108.8 0.107
2006 89.9 0.118
2007 74.6 0.132
2008 62.4 0.147
2009 52.3 0.161
2010 43.9 0.174
2011 36.6 0.185
2012 30.0 0.194
2013 23.8 0.200
2014 18.0 0.203
2015 12.3 0.204
2016 6.5 0.201
2017 0.5 0.196
2018 354.1 0.188
2019 347.0 0.178
2020 338.9 0.165
2021 329.4 0.150
2022 317.6 0.134
2023 302.7 0.119
2024 283.7 0.106
2025 260.8 0.099
2026 235.9 0.098
2027 211.6 0.100
2028 188.6 0.102
2029 165.7 0.101
2030 142.3 0.101


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds21424%2B4105a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 21424+4105 KUI 108 AB : NOTES
 
 
discov_num notes refcode
KUI 108 77 Cyg.
One component is an SB1, P = 1.73 d.
The system may be physically related to 21426+4103BU 688 according to Egg1965b
Eggen, and thus quintuple.
 
 
REFERENCES
 
 
refcode metd author reference
Egg1965b - Eggen, O.J. 1965Obs....85..191E
Egg1965b Observatory 85, 191, 1965
 
 
DISCOVERER
 
 
idgroup discov author
1 ARY Argyle, R.W.
72 KUI Kuiper, G.P., Schilt, van den Bos, W., and van Gent
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21424+4105 KUI 108 AB 2014 142 14 0.2 6.33 6.72 A0V NO 214222.94+410437.3

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

 
 
WDS 21424+4105 KUI 108 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21424+4105 KUI 108 AB : MEASURES
 
 
No records found.

 
 
WDS 21424+4105 : VIRTUAL EYEPIECE
 
 

21424+4105 KUI 108A mag 6.33 Sp A0V 21424+4105 KUI 108B sep 0.2 P.A. 10.30 mag 6.72 21424+4105 ARY 129C sep 127.0 P.A. 140.20 mag 7.8 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 21424+4105 : ALADIN DSS IMAGE @ 21h 42m 22.94s +41° 04' 37.3"
 
 
 
 
WDS 21424+4105 KUI 108 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21424+4105 KUI 108AB distance=0' 21426+4103 BU 688AB distance=3' 21426+4103 FOX9036AB,D distance=3' 21426+4103 BU 688AB,C distance=3' 21422+4057 DAM 231 distance=8' 21419+4058 MLB 30 distance=13' 21412+4117 COU1977 distance=19' 21416+4048 S 796AB distance=19' 21416+4048 S 796AC distance=19' 21416+4048 FYM 112AD distance=19' 21416+4048 FYM 112AE distance=19' 21416+4048 FYM 112AF distance=19' 21431+4122 COU1978 distance=20' 21396+4049 MLB 29 distance=36' 21456+4110 TDT3144 distance=37' 21408+4027 TDT3102 distance=42' 21417+4022 TDT3111 distance=44' 21431+4021 TDT3121 distance=45' 21395+4144 BU 449AB distance=51' 21395+4144 STT 447AC distance=51' 21395+4144 BU 449AD distance=51' 21395+4144 STT 447AE distance=51' 21395+4144 ABH 148AH distance=51' 21395+4144 ABH 148AI distance=51' 21395+4144 ABH 148AJ distance=51' 21395+4144 ABH 148AK distance=51' 21395+4144 ABH 148AG distance=51' 21395+4144 FOX 262EF distance=51' 21458+4029 ES 1693 distance=53' 21461+4143 TDT3148 distance=57' 21409+4205 TDT3104 distance=63' 21365+4105 TDT3055 distance=67' 21456+4202 TDT3143 distance=68' 21380+4153 A 402 distance=70' 21373+4145 GRV 486 distance=71' 21473+4148 A 404AB distance=71' 21473+4148 A 404AC distance=71' 21398+4211 TDT3094 distance=73' 21361+4048 TDT3051 distance=73' 21369+4025 DRS 20 distance=74' 21454+3955 SEI1534 distance=78' 21494+4058 TDT3178 distance=81' 21354+4128 GRV 480 distance=82' 21426+4226 BU 1505BC distance=82' 21426+4226 STF2820AB distance=82' 21426+4226 BU 1505AC distance=82' 21393+3948 KPP4241 distance=85' 21458+3945 MLB 902 distance=87' 21363+4012 AG 273 distance=88' 21450+3942 GRV 499 distance=88' 21399+3941 A 1446 distance=89' 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 21424+4105 KUI 108 AB 14 0.2
Show 21424+4105 ARY 129 AB,C 132 145.5
Show 21426+4103 BU 688 AB 198 0.4 3
Show 21426+4103 FOX9036 AB,D 306 46.7 3
Show 21426+4103 BU 688 AB,C 30 27.0 3
Show 21422+4057 DAM 231 292 8.9 8
Show 21419+4058 MLB 30 228 9.1 13
Show 21412+4117 COU1977 97 1.2 19
Show 21416+4048 S 796 AB 233 58.2 19
Show 21416+4048 S 796 AC 282 132.4 19
Show 21416+4048 FYM 112 AD 163 70.0 19
Show 21416+4048 FYM 112 AE 143 73.8 19
Show 21416+4048 FYM 112 AF 305 55.0 19
Show 21431+4122 COU1978 87 0.2 20
Show 21396+4049 MLB 29 340 6.8 36
Show 21456+4110 TDT3144 193 2.2 37
Show 21408+4027 TDT3102 25 1.4 42
Show 21417+4022 TDT3111 296 2.7 44
Show 21431+4021 TDT3121 157 1.7 45
Show 21395+4144 BU 449 AB 14 6.0 51
Show 21395+4144 STT 447 AC 176 14.0 51
Show 21395+4144 BU 449 AD 248 18.9 51
Show 21395+4144 STT 447 AE 43 29.1 51
Show 21395+4144 ABH 148 AH 263 74.4 51
Show 21395+4144 ABH 148 AI 271 92.9 51
Show 21395+4144 ABH 148 AJ 95 71.2 51
Show 21395+4144 ABH 148 AK 49 74.7 51
Show 21395+4144 ABH 148 AG 337 33.8 51
Show 21395+4144 FOX 262 EF 46 41.7 51
Show 21458+4029 ES 1693 34 7.4 53
Show 21461+4143 TDT3148 18 0.4 57
Show 21409+4205 TDT3104 233 2.2 63
Show 21365+4105 TDT3055 247 0.5 67
Show 21456+4202 TDT3143 34 0.5 68
Show 21380+4153 A 402 47 0.8 70
Show 21373+4145 GRV 486 348 28.0 71
Show 21473+4148 A 404 AB 100 3.8 71
Show 21473+4148 A 404 AC 294 14.0 71
Show 21398+4211 TDT3094 229 2.9 73
Show 21361+4048 TDT3051 275 0.6 73
Show 21369+4025 DRS 20 58 7.0 74
Show 21454+3955 SEI1534 189 27.8 78
Show 21494+4058 TDT3178 251 0.6 81
Show 21354+4128 GRV 480 17 15.1 82
Show 21426+4226 BU 1505 BC 177 21.4 82
Show 21426+4226 STF2820 AB 230 16.0 82
Show 21426+4226 BU 1505 AC 200 33.6 82
Show 21393+3948 KPP4241 95 4.0 85
Show 21458+3945 MLB 902 327 5.6 87
Show 21363+4012 AG 273 3 8.9 88
Show 21450+3942 GRV 499 170 67.4 88

 
 
WDS 21424+4105 : COMPONENTS
 
 
  A B
B pa=10.3°
sep=0.20"
 
C pa=140.2°
sep=127.04"
pa=140.2°
sep=127.17"
 
 
21424+4105 A
 
 
Coord arcsec 2000 214222.94+410437.3 Mag 6.33 Spectral class A0V (white) PmRA 31.00
PmDE -5.0 SAO 51207 HIP 107162 Tycho2 3188-01949-1
HD 206644 HR 8300 GC 30394 BD BD+40 4615
Flamsteed 77 Cygni Flamsteed name 77 Cyg
Tycho2
Tycho2 3188-01949-1 Pflag RAmdeg 325.59567185 DEmdeg 41.07702277
PmRA 26.0 PmDE -0.4 E RAmdeg 3 E DEmdeg 3
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.55 EpDEm 1991.59
Num 9 Q RAmdeg 1.7 Q DEmdeg 1.0 Q pmRA 1.6
Q pmDE 0.9 BTmag 5.796 E BTmag 0.014 VTmag 5.733
E VTmag 0.009 Prox 999 TYC T HIP 107162
CCDM AB RAdeg 325.59559194 DEdeg 41.07702361 EpRA 1990 1.67
EpDE 1990 1.70 E RAdeg 3.3 E DEdeg 3.3 Posflg P
Corr 0.2
SAO
SAO 51207 DelFlag RA1950 PmRA1950 0.0016
DE1950 PmDE1950 0.007 Vmag 5.5 SpType A0
Double code Source 70 CatNum 30394 DM BD+40 4615
DMcomp BDsup HD 206644 M HD 0
GC 30394 RA1950rad 5.67391918 DE1950rad 0.71293403 PmRA2000 0.0018
PmDE2000 0.003
Hipparcos
Catalog H HIP 107162 Proxy H RAhms 21 42 22.94
DEdms +41 04 37.3 Vmag 5.73 VarFlag R Vmag H
RAdeg 325.596 DEdeg 41.077 AstroRef * Plx 8.76
CCDM 21424+4105 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AB
Theta 355 Rho 0.189 HD 206644 BD BD+40 4615
CD CP Dm number +40 4615 VIred 0.06
SpType A0V R SpType Coord arcsec 2000 214222.94+410437.3
Hipparcos 2
HIP 107162 Sn 57 So 3 Nc 2
RArad 5.6827150103 DErad 0.7169292972 Plx 7.91 PmRA 23.48
PmDE -1.02 E RArad 0.26 E DErad 0.3 E Plx 0.4
E pmRA 0.34 E pmDE 0.4 Hpmag 5.7583 E Hpmag 0.0005
SHp 0.007 VA 0 BV 0.055 E BV 0.004
VI 0.07
CCDM
Ccdm 21424+4105 RComp Comp A Note1
Note2 Discov num DRAs -1.10 DDEs -23.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.2 Sp A0 PmNote *
PmRA 15 PmDE -9 Dm number +40 4615 Cat1 BD
Name2 +40 2246 Cat2 AGK2/3 HD 206644 M HD
ADS BDS M ADS BDS N IDS IDS 21384N4038A
HIC 107162
 
 
21424+4105 B
 
 
Coord arcsec 2000 214222.94+410437.5 Mag 6.72 Calc delta mag 0.39 Calc coord yes
CCDM
Ccdm 21424+4105 RComp Comp B Note1 *
Note2 Discov num KUI 108 DRAs DDEs
R dRAs Year 1937 Theta Rho
Obs 18 Vmag 6.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21384N4038B
HIC 107162
 
 
21424+4105 C
 
 
Coord arcsec 2000 214230.14+410259.8 Mag 7.8 Calc delta mag 1.47 Calc coord yes