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Doubles in session


Current system
20203+3924
A 1427 AB


Nearby doubles
2' : 20203+3922
SEI1091

4' : 20201+3921
ES 2050AB

4' : 20203+3920
SEI1090

5' : 20200+3921
MLB 882

6' : 20203+3919
BKO 566

7' : 20207+3922
SEI1094

7' : 20206+3919
TDS1061

8' : 20208+3922
BKO 568

9' : 20206+3917
BKO 567AB

9' : 20208+3919
TDT2196

9' : 20209+3928
HO 127

10' : 20199+3933
HO 593

12' : 20210+3919
SEI1097AB

16' : 20191+3916
TRN 28AB

18' : 20188+3924
SEI1078

18' : 20192+3938
ES 2051

22' : 20185+3916
MLB 881

23' : 20188+3909
SEI1079

27' : 20189+3945
COU2537

27' : 20216+3902
SEI1101

28' : 20214+3900
GRV 334

28' : 20192+3859
HO 126AB

29' : 20190+3900
HO 125

30' : 20215+3950
SEI1103

30' : 20177+3921
SEI1070

32' : 20177+3914
COU2536



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.

20203+3924 A 1427 AB

 
 
20h 20m 15.22s +39° 24' 11.8" P.A. 132.00 sep 0.2 mag 6.57,8.17 Sp A2V+A5V dist. 180.51 pc (588.82 l.y.)
 
 
Coord 2000 20203+3924 Discov num A  1427 Comp AB Coord arcsec 2000 20 20 15.22 +39 24 11.8
Date first 1906 Date last 2012 Obs 49
Pa first 112 Pa last 132.4 P.A. Now (θ) 152.3°
Sep first 0.3 Sep last 0.19 Sep. Now (ρ) 0.146"
Mag pri 6.57 Mag sec 8.17 delta mag (ΔM) 1.6 Spectral class A2V+A5V (white/white)
Pri motion ra -003 Sec motion ra
Pri motion dec -029 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
20203+3924 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 69856 20 20 15 +39 24 12 A 1427 AB 2012 49 132 0.2 6.57 8.17 1.60 Y <===
Show HD 193702 69856 20 20 15 +39 24 12 STF 2668 AB,C 2016 64 280 3.5 6.34 8.49 2.15
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 69856 HIP 100268 Tycho2 3156-02225-1
Gaia DR2 2061463669341204736 HD 193702 HR 7784 GC 28299
ADS 13728 BD BD+38 4021 Distance 180.51 Distance ly 588.82
 
 
ORBITAL ELEMENTS
 
 
Period (P)82.61y Periastron (T)2032.75y Semi-major axis (a)0.25a
Eccentricity (e)0.879 Inclination (i)56.1° Longitude of periastron (ω)238.3°
Node (Ω)70.4° Notesn ReferenceDoc2016h
Equinox2000 Last observation2008 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 118.5 0.306
2001 119.3 0.302
2002 120.1 0.297
2003 120.9 0.292
2004 121.8 0.287
2005 122.7 0.282
2006 123.6 0.277
2007 124.6 0.271
2008 125.6 0.265
2009 126.7 0.259
2010 127.8 0.253
2011 128.9 0.246
2012 130.2 0.239
2013 131.5 0.232
2014 132.9 0.225
2015 134.3 0.217
2016 135.9 0.209
2017 137.7 0.201
2018 139.5 0.192
2019 141.6 0.184
2020 143.9 0.175
2021 146.4 0.166
2022 149.2 0.156
2023 152.3 0.146
2024 155.9 0.136
2025 160.1 0.126
2026 165.1 0.116
2027 171.0 0.105
2028 178.3 0.095
2029 187.3 0.084
2030 199.0 0.073


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


 
  


wds20203%2B3924b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 20203+3924 A 1427 AB : NOTES
 
 
discov_num notes refcode
A 1427 Spectral types and masses of components assigned by ten Brummelaar et
al., based on adaptive optics observations. TtB2000
 
 
REFERENCES
 
 
refcode metd author reference
Doc2016h orb - Docobo, J.A. & Campo, P. 2016IAUDS.188R...1D
Doc2016h Inf. Circ. 190, 1, 2016
TtB2000 Ac j ten Brummelaar, T.A., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr., 2000AJ....119.2403T
TtB2000 Turner, N.H., Hartkopf, W.I., & Bagnuolo, W.G., Jr.
TtB2000 AJ 119, 2403, 2000 (magnitude differences from Mt. Wilson AO)
 
 
DISCOVERER
 
 
idgroup discov author
1 A Aitken, R.G.
312 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20203+3924 A 1427 AB 2007 42 131 0.3 6.57 8.17 A2V+A5V NOD 202015.22+392411.8
20203+3924 A 1427 AB 2008 46 130 0.3 6.57 8.17 A2V+A5V NOD 202015.22+392411.8
20203+3924 A 1427 AB 2010 48 125 0.3 6.57 8.17 A2V+A5V NO 202015.22+392411.8
20203+3924 A 1427 AB 2012 49 132 0.2 6.57 8.17 A2V+A5V NO 202015.22+392411.8

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

 
 
WDS 20203+3924 A 1427 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20203+3924 A 1427 AB : MEASURES
 
 
No records found.

 
 
WDS 20203+3924 : VIRTUAL EYEPIECE
 
 

20203+3924 A 1427A mag 6.57 Sp A2V 20203+3924 A 1427B sep 0.2 P.A. 139.80 mag 8.17 Sp A5V 20203+3924 STF2668C sep 2.7 P.A. 282.90 mag 8.49 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 20203+3924 : ALADIN DSS IMAGE @ 20h 20m 15.22s +39° 24' 11.8"
 
 
 
 
WDS 20203+3924 A 1427 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20203+3924 A 1427AB distance=0' 20203+3922 SEI1091 distance=2' 20201+3921 ES 2050AB distance=4' 20201+3921 ES 2050AC distance=4' 20203+3920 SEI1090 distance=4' 20200+3921 MLB 882 distance=5' 20203+3919 BKO 566 distance=6' 20207+3922 SEI1094 distance=7' 20206+3919 TDS1061 distance=7' 20208+3922 BKO 568 distance=8' 20206+3917 BKO 567AB distance=9' 20206+3917 BKO 567AC distance=9' 20208+3919 TDT2196 distance=9' 20209+3928 HO 127 distance=9' 20199+3933 HO 593 distance=10' 20210+3919 SEI1097AB distance=12' 20210+3919 TOB 186BC distance=12' 20191+3916 TRN 28AB distance=16' 20191+3916 TRN 28AC distance=16' 20188+3924 SEI1078 distance=18' 20192+3938 ES 2051 distance=18' 20185+3916 MLB 881 distance=22' 20188+3909 SEI1079 distance=23' 20189+3945 COU2537 distance=27' 20216+3902 SEI1101 distance=27' 20214+3900 GRV 334 distance=28' 20192+3859 HO 126AB distance=28' 20192+3859 HO 126AC distance=28' 20190+3900 HO 125 distance=29' 20215+3950 SEI1103 distance=30' 20177+3921 SEI1070 distance=30' 20177+3914 COU2536 distance=32' 20230+3913 SEI1107BC distance=33' 20198+3852 SLE1004 distance=33' 20230+3913 STTA206AB distance=34' 20230+3913 STTA206AD distance=34' 20198+3958 MLB1014 distance=34' 20184+3950 A 1424 distance=34' 20203+3958 BRT2260 distance=35' 20199+4000 MLB1015 distance=36' 20221+3855 SEI1104 distance=36' 20183+3953 BKO 822 distance=37' 20235+3918 SEI1111 distance=39' 20229+3856 SEI1106 distance=42' 20237+3937 ALI1141 distance=42' 20178+3956 HJ 2951AB distance=43' 20178+3956 FOX9014AC distance=43' 20168+3942 DAM1040FG distance=44' 20239+3912 J 129 distance=44' 20168+3942 STF2663AB distance=44' 20168+3942 CTT 21AC distance=44' 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 20203+3924 A 1427 AB 132 0.2
Show 20203+3924 STF2668 AB,C 280 3.5
Show 20203+3922 SEI1091 180 27.7 2
Show 20201+3921 ES 2050 AB 92 5.9 4
Show 20201+3921 ES 2050 AC 191 11.2 4
Show 20203+3920 SEI1090 154 13.9 4
Show 20200+3921 MLB 882 279 5.0 5
Show 20203+3919 BKO 566 159 5.9 6
Show 20207+3922 SEI1094 316 27.1 7
Show 20206+3919 TDS1061 345 1.5 7
Show 20208+3922 BKO 568 249 8.1 8
Show 20206+3917 BKO 567 AB 284 5.6 9
Show 20206+3917 BKO 567 AC 87 5.2 9
Show 20208+3919 TDT2196 192 0.4 9
Show 20209+3928 HO 127 94 1.9 9
Show 20199+3933 HO 593 313 5.0 10
Show 20210+3919 SEI1097 AB 44 27.2 12
Show 20210+3919 TOB 186 BC 51 16.2 12
Show 20191+3916 TRN 28 AB 80 4.9 16
Show 20191+3916 TRN 28 AC 158 3.2 16
Show 20188+3924 SEI1078 45 17.7 18
Show 20192+3938 ES 2051 306 4.9 18
Show 20185+3916 MLB 881 145 10.3 22
Show 20188+3909 SEI1079 110 6.2 23
Show 20189+3945 COU2537 295 0.8 27
Show 20216+3902 SEI1101 11 11.6 27
Show 20214+3900 GRV 334 275 31.1 28
Show 20192+3859 HO 126 AB 163 2.2 28
Show 20192+3859 HO 126 AC 247 37.0 28
Show 20190+3900 HO 125 196 3.5 29
Show 20215+3950 SEI1103 223 17.0 30
Show 20177+3921 SEI1070 143 27.9 30
Show 20177+3914 COU2536 312 1.8 32
Show 20230+3913 SEI1107 BC 69 19.3 33
Show 20198+3852 SLE1004 166 11.2 33
Show 20230+3913 STTA206 AB 254 43.7 34
Show 20230+3913 STTA206 AD 259 24.5 34
Show 20198+3958 MLB1014 241 7.6 34
Show 20184+3950 A 1424 46 1.1 34
Show 20203+3958 BRT2260 9 3.2 35
Show 20199+4000 MLB1015 89 4.0 36
Show 20221+3855 SEI1104 195 18.2 36
Show 20183+3953 BKO 822 60 7.1 37
Show 20235+3918 SEI1111 10 25.3 39
Show 20229+3856 SEI1106 109 3.8 42
Show 20237+3937 ALI1141 21 11.5 42
Show 20178+3956 HJ 2951 AB 125 10.8 43
Show 20178+3956 FOX9014 AC 61 24.4 43
Show 20168+3942 DAM1040 FG 225 3.5 44
Show 20239+3912 J 129 35 3.3 44
Show 20168+3942 STF2663 AB 322 5.4 44

 
 
WDS 20203+3924 : COMPONENTS
 
 
  A B
B pa=139.8°
sep=0.17"
 
C pa=282.9°
sep=2.69"
pa=284.9°
sep=2.83"
 
 
20203+3924 A
 
 
Coord arcsec 2000 202015.22+392411.8 Mag 6.57 Spectral class A2V (white) PmRA -3.00
PmDE -29.0 SAO 69856 HIP 100268 Tycho2 3156-02225-1
HD 193702 HR 7784 GC 28299 BD BD+38 4021
Tycho2
Tycho2 3156-02225-1 Pflag RAmdeg 305.06345718 DEmdeg 39.40321711
PmRA 2.9 PmDE -23.7 E RAmdeg 4 E DEmdeg 4
E pmRA 1.6 E pmDE 1.6 EpRAm 1991.51 EpDEm 1991.64
Num 4 Q RAmdeg 0.2 Q DEmdeg 2.8 Q pmRA 0.2
Q pmDE 2.7 BTmag 6.396 E BTmag 0.014 VTmag 6.344
E VTmag 0.010 Prox 34 TYC T HIP 100268
CCDM AB RAdeg 305.06344833 DEdeg 39.40327167 EpRA 1990 1.58
EpDE 1990 1.71 E RAdeg 3.6 E DEdeg 3.5 Posflg D
Corr 0.0
SAO
SAO 69856 DelFlag RA1950 PmRA1950 -0.0005
DE1950 PmDE1950 -0.02 Vmag 6.2 SpType A0
Double code Source 70 CatNum 28299 DM BD+38 4021
DMcomp BDsup HD 193702 M HD 0
GC 28299 RA1950rad 5.31644632 DE1950rad 0.68494758 PmRA2000 -0.0002
PmDE2000 -0.022
Hipparcos
Catalog H HIP 100268 Proxy H RAhms 20 20 15.22
DEdms +39 24 11.8 Vmag 6.22 VarFlag R Vmag G
RAdeg 305.063 DEdeg 39.4033 AstroRef A Plx 9.18
CCDM 20203+3924 N CCDM I Nsys 1 Ncomp 3
MultFlag C Source Qual A M HIP
Theta Rho HD 193702 BD BD+38 4021
CD CP Dm number +38 4021 VIred 0.04
SpType A1V R SpType Coord arcsec 2000 202015.22+392411.8
Hipparcos 2
HIP 100268 Sn 15 So 3 Nc 3
RArad 5.3243612963 DErad 0.6877169732 Plx 5.54 PmRA -4.98
PmDE -24.15 E RArad 0.33 E DErad 0.38 E Plx 0.46
E pmRA 0.35 E pmDE 0.4 Hpmag 6.2445 E Hpmag 0.0006
SHp 0.006 VA 0 BV 0.06 E BV 0.042
VI 0.04
CCDM
Ccdm 20203+3924 RComp Comp A Note1
Note2 Discov num DRAs -2.78 DDEs 11.3
R dRAs 10 Year Theta Rho
Obs 3 Vmag 6.3 Sp A0 PmNote *
PmRA -2 PmDE -24 Dm number +38 4021 Cat1 BD
Name2 +39 2106 Cat2 AGK2/3 HD 193702 M HD
ADS BDS A13728 M ADS BDS N IDS IDS 20166N3905A
HIC 100268
 
 
20203+3924 B
 
 
Coord arcsec 2000 202015.23+392411.7 Mag 8.17 Spectral class A5V (white) Calc delta mag 1.6
Calc coord yes
CCDM
Ccdm 20203+3924 RComp Comp B Note1 *
Note2 Discov num A 1427 DRAs DDEs
R dRAs Year 1906 Theta Rho
Obs 10 Vmag 8.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13728 M ADS BDS N IDS IDS 20166N3905B
HIC 100268
 
 
20203+3924 C
 
 
Coord arcsec 2000 202014.99+392412.4 Mag 8.49 PmRA -5.00 PmDE -23.0
Calc delta mag 1.92 Calc coord yes
CCDM
Ccdm 20203+3924 RComp Comp C Note1
Note2 Discov num STF2668 DRAs DDEs
R dRAs Year 1957 Theta 283 Rho 3.3
Obs 22 Vmag 9.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13728 M ADS BDS N IDS IDS 20166N3905C
HIC 100268