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Doubles in session


Current system
20215+3950
SEI 1103
HD 193946


Nearby doubles
17' : 20203+3958
BRT2260

22' : 20198+3958
MLB1014

22' : 20199+4000
MLB1015

23' : 20209+3928
HO 127

25' : 20199+3933
HO 593

28' : 20237+3937
ALI1141

30' : 20207+3922
SEI1094

30' : 20208+3922
BKO 568

30' : 20203+3924
A 1427AB

30' : 20192+3938
ES 2051

31' : 20203+3922
SEI1091

31' : 20189+3945
COU2537

33' : 20208+3919
TDT2196

33' : 20210+3919
SEI1097AB

33' : 20206+3919
TDS1061

33' : 20203+3920
SEI1090

33' : 20201+3921
ES 2050AB

34' : 20204+4021
TDT2186

34' : 20200+3921
MLB 882

35' : 20203+3919
BKO 566

35' : 20244+4002
MLB 21

36' : 20206+3917
BKO 567AB

37' : 20184+3950
A 1424

38' : 20183+3953
BKO 822

40' : 20235+3918
SEI1111

41' : 20230+3913
STTA206AB



Selections
Full WDS
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Binary Systems
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Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20215+3950 SEI 1103 (HD 193946)

 
 
20h 21m 32.72s +39° 49' 45.6" P.A. 223.00 sep 17.0 mag 9.11,10.85 Sp B2Ib dist. 255.1 pc (832.14 l.y.)
 
 
Coord 2000 20215+3950 Discov num SEI1103 Comp Coord arcsec 2000 20 21 32.72 +39 49 45.6
Date first 1892 Date last 2015 Obs 14
Pa first 224 Pa last 223 P.A. Now (θ) 223°
Sep first 16.9 Sep last 17.039 Sep. Now (ρ) 17.039"
Mag pri 9.11 Mag sec 10.85 delta mag (ΔM) 1.74 Spectral class B2Ib (blue-white)
Pri motion ra -003 Sec motion ra -004
Pri motion dec -007 Sec motion dec -007
Notes
rPM=0.124 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 193946 Constellation Cygnus SAO 69895 HIP 100391
Tycho2 3156-00479-1 Gaia DR2 2061499850151685888 HD 193946 BD BD+39 4151
Distance 255.1 Distance ly 832.14
 
 
WDS 20215+3950 SEI 1103 (HD 193946) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Sei1908 Pa - Scheiner, J. 1908POPot..59.....S
Sei1908 +Po Pub. Obs. Potsdam 20, #59, 1908
Sei1913A Pa - Scheiner, J. 1913QB811.B8.......
Sei1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A Pa - Scheiner, J. 1932QB821.A43......
Sei1932A cited in ADS (Aitken Double Star Cat.), 1932
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20215+3950 SEI1103 1998 6 223 17.1 9.11 10.85 B2Ib D 202132.72+394945.6
20215+3950 SEI1103 2008 7 223 16.8 9.11 10.85 B2Ib D 202132.72+394945.6
20215+3950 SEI1103 2010 9 223 16.9 9.11 10.85 B2Ib 202132.72+394945.6
20215+3950 SEI1103 2015 10 223 17.0 9.11 10.85 B2Ib 202132.72+394945.6

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

 
 
WDS 20215+3950 SEI 1103 (HD 193946) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20215+3950 SEI 1103 (HD 193946) : MEASURES
 
 
No records found.

 
 
WDS 20215+3950 (HD 193946) : VIRTUAL EYEPIECE
 
 

20215+3950 SEI1103A mag 9.11 Sp B2Ib 20215+3950 SEI1103B sep 15.3 P.A. 215.60 mag 10.85 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 20215+3950 (HD 193946) : ALADIN DSS IMAGE @ 20h 21m 32.72s +39° 49' 45.6"
 
 
 
 
WDS 20215+3950 SEI 1103 (HD 193946) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20215+3950 SEI1103 distance=0' 20203+3958 BRT2260 distance=17' 20198+3958 MLB1014 distance=22' 20199+4000 MLB1015 distance=22' 20209+3928 HO 127 distance=23' 20222+4015 BU 665BC,D distance=25' 20222+4015 BU 665BC distance=25' 20199+3933 HO 593 distance=25' 20222+4015 BU 665A,BC (Sadr) distance=27' 20237+3937 ALI1141 distance=28' 20207+3922 SEI1094 distance=30' 20208+3922 BKO 568 distance=30' 20203+3924 A 1427AB distance=30' 20203+3924 STF2668AB,C distance=30' 20192+3938 ES 2051 distance=30' 20203+3922 SEI1091 distance=31' 20189+3945 COU2537 distance=31' 20208+3919 TDT2196 distance=33' 20210+3919 TOB 186BC distance=33' 20210+3919 SEI1097AB distance=33' 20206+3919 TDS1061 distance=33' 20203+3920 SEI1090 distance=33' 20201+3921 ES 2050AB distance=33' 20201+3921 ES 2050AC distance=33' 20204+4021 TDT2186 distance=34' 20200+3921 MLB 882 distance=34' 20203+3919 BKO 566 distance=35' 20244+4002 MLB 21 distance=35' 20206+3917 BKO 567AB distance=36' 20206+3917 BKO 567AC distance=36' 20184+3950 A 1424 distance=37' 20183+3953 BKO 822 distance=38' 20235+3918 SEI1111 distance=40' 20230+3913 SEI1107BC distance=41' 20230+3913 STTA206AB distance=41' 20230+3913 STTA206AD distance=41' 20188+3924 SEI1078 distance=42' 20207+4031 TDT2193 distance=43' 20248+4009 HO 278 distance=43' 20178+3956 HJ 2951AB distance=44' 20178+3956 FOX9014AC distance=44' 20191+3916 TRN 28AB distance=44' 20191+3916 TRN 28AC distance=44' 20239+3912 J 129 distance=46' 20253+4003 MLB 22 distance=47' 20241+3912 SEI1115 distance=48' 20216+3902 SEI1101 distance=48' 20255+4006 D 22AB distance=49' 20255+4006 D 22AC distance=49' 20255+4006 POP 224AD distance=49' 20185+3916 MLB 881 distance=49' 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 20215+3950 SEI1103 223 17.0
Show 20203+3958 BRT2260 9 3.2 17
Show 20198+3958 MLB1014 241 7.6 22
Show 20199+4000 MLB1015 89 4.0 22
Show 20209+3928 HO 127 94 1.9 23
Show 20222+4015 BU 665 BC,D 131 41.0 25
Show 20222+4015 BU 665 BC 302 1.9 25
Show 20199+3933 HO 593 313 5.0 25
Show Sadr 20222+4015 BU 665 A,BC 197 147.1 27
Show 20237+3937 ALI1141 21 11.5 28
Show 20207+3922 SEI1094 316 27.1 30
Show 20208+3922 BKO 568 249 8.1 30
Show 20203+3924 A 1427 AB 132 0.2 30
Show 20203+3924 STF2668 AB,C 280 3.5 30
Show 20192+3938 ES 2051 306 4.9 30
Show 20203+3922 SEI1091 180 27.7 31
Show 20189+3945 COU2537 295 0.8 31
Show 20208+3919 TDT2196 192 0.4 33
Show 20210+3919 TOB 186 BC 51 16.2 33
Show 20210+3919 SEI1097 AB 44 27.2 33
Show 20206+3919 TDS1061 345 1.5 33
Show 20203+3920 SEI1090 154 13.9 33
Show 20201+3921 ES 2050 AB 92 5.9 33
Show 20201+3921 ES 2050 AC 191 11.2 33
Show 20204+4021 TDT2186 349 0.5 34
Show 20200+3921 MLB 882 279 5.0 34
Show 20203+3919 BKO 566 159 5.9 35
Show 20244+4002 MLB 21 15 8.8 35
Show 20206+3917 BKO 567 AB 284 5.6 36
Show 20206+3917 BKO 567 AC 87 5.2 36
Show 20184+3950 A 1424 46 1.1 37
Show 20183+3953 BKO 822 60 7.1 38
Show 20235+3918 SEI1111 10 25.3 40
Show 20230+3913 SEI1107 BC 69 19.3 41
Show 20230+3913 STTA206 AB 254 43.7 41
Show 20230+3913 STTA206 AD 259 24.5 41
Show 20188+3924 SEI1078 45 17.7 42
Show 20207+4031 TDT2193 288 1.2 43
Show 20248+4009 HO 278 70 0.1 43
Show 20178+3956 HJ 2951 AB 125 10.8 44
Show 20178+3956 FOX9014 AC 61 24.4 44
Show 20191+3916 TRN 28 AB 80 4.9 44
Show 20191+3916 TRN 28 AC 158 3.2 44
Show 20239+3912 J 129 35 3.3 46
Show 20253+4003 MLB 22 227 6.2 47
Show 20241+3912 SEI1115 181 23.6 48
Show 20216+3902 SEI1101 11 11.6 48
Show 20255+4006 D 22 AB 163 2.9 49
Show 20255+4006 D 22 AC 114 18.1 49
Show 20255+4006 POP 224 AD 98 71.2 49
Show 20185+3916 MLB 881 145 10.3 49

 
 
WDS 20215+3950 : COMPONENTS
 
 
  A
B pa=215.6°
sep=15.33"
 
 
20215+3950 A
 
 
Componente originario normalizzato AB Name HD 193946 Coord arcsec 2000 202132.72+394945.6 Mag 9.11
Spectral class B2Ib (blue-white) PmRA -3.00 PmDE -7.0 SAO 69895
HIP 100391 Tycho2 3156-00479-1 HD 193946 BD BD+39 4151
Tycho2
Tycho2 3156-00479-1 Pflag RAmdeg 305.38634297 DEmdeg 39.82932308
PmRA -4.1 PmDE -6.6 E RAmdeg 11 E DEmdeg 10
E pmRA 1.1 E pmDE 1.1 EpRAm 1990.31 EpDEm 1990.64
Num 10 Q RAmdeg 0.8 Q DEmdeg 1.1 Q pmRA 0.8
Q pmDE 1.2 BTmag 9.993 E BTmag 0.023 VTmag 9.107
E VTmag 0.016 Prox 171 TYC T HIP 100391
CCDM A RAdeg 305.38635583 DEdeg 39.82933806 EpRA 1990 1.60
EpDE 1990 1.74 E RAdeg 11.0 E DEdeg 10.0 Posflg
Corr -0.1
SAO
SAO 69895 DelFlag RA1950 PmRA1950 0.0006
DE1950 PmDE1950 -0.016 Vmag 8.6 SpType B
Double code Source 5 CatNum 2112 DM BD+39 4151
DMcomp BDsup HD 193946 M HD 0
GC RA1950rad 5.32212175 DE1950rad 0.69235398 PmRA2000 0.0009
PmDE2000 -0.018
Hipparcos
Catalog H HIP 100391 Proxy RAhms 20 21 32.73
DEdms +39 49 45.6 Vmag 8.92 VarFlag 2 R Vmag G
RAdeg 305.386 DEdeg 39.8293 AstroRef A Plx 3.37
CCDM 20215+3950 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 223 Rho 17.087 HD 193946 BD BD+39 4151
CD CP Dm number +39 4151 VIred 0.92
SpType B2Ib R SpType Coord arcsec 2000 202132.73+394945.6
Hipparcos 2
HIP 100391 Sn 15 So 3 Nc 2
RArad 5.3299974256 DErad 0.6951531599 Plx 3.92 PmRA -6.56
PmDE -3.18 E RArad 1.66 E DErad 1.77 E Plx 2.22
E pmRA 1.98 E pmDE 2.03 Hpmag 9.083 E Hpmag 0.0158
SHp 0.039 VA 2 BV 0.92 E BV 0.015
VI 0.92
CCDM
Ccdm 20215+3950 RComp Comp A Note1
Note2 Discov num DRAs 2.65 DDEs -15.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.4 Sp B PmNote *
PmRA -21 PmDE -24 Dm number +39 4151 Cat1 BD
Name2 +39 2112 Cat2 AGK2/3 HD 193946 M HD
ADS BDS M ADS BDS N IDS IDS 20179N3931A
HIC 100391
 
 
20215+3950 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202131.95+394933.1 Mag 10.85 PmRA -4.00
PmDE -7.0 Calc delta mag 1.74 Calc coord yes
CCDM
Ccdm 20215+3950 RComp Comp B Note1
Note2 Discov num SEI1103 DRAs DDEs
R dRAs Year 1896 Theta 223 Rho 17.2
Obs 1 Vmag 11.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20179N3931B
HIC