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Current system
20070+3651
SEI 889
HD 227741


Nearby doubles
14' : 20063+3642
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SEI 912AB

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SEI 898AB

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A 1415

29' : 20074+3719
KPP3354

29' : 20049+3641
SEI 842

29' : 20094+3651
BNW 2AB

29' : 20050+3707
COU2212

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A 1413

33' : 20046+3639
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TOB 170

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SEI 920

36' : 20072+3616
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SEI 928AB

38' : 20085+3619
SEI 911



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

20070+3651 SEI 889 (HD 227741)

 
 
20h 07m 02.65s +36° 51' 19.0" P.A. 209.00 sep 9.0 mag 9.39,12.20 Sp B8
 
 
Coord 2000 20070+3651 Discov num SEI 889 Comp Coord arcsec 2000 20 07 02.65 +36 51 19.0
Date first 1896 Date last 2015 Obs 11
Pa first 211 Pa last 208.5 P.A. Now (θ) 208.5°
Sep first 7.0 Sep last 8.987 Sep. Now (ρ) 8.987"
Mag pri 9.39 Mag sec 12.20 delta mag (ΔM) 2.81 Spectral class B8 (blue-white)
Pri motion ra +004 Sec motion ra -010
Pri motion dec -002 Sec motion dec -010
Notes
rPM=1.14
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 227741 Constellation Cygnus SAO 69437 Tycho2 2683-02781-1
Gaia DR2 2059991182778885760 HD 227741
 
 
WDS 20070+3651 SEI 889 (HD 227741) : 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
20070+3651 SEI 889 1998 4 209 8.7 9.39 12.20 B8 D 200702.65+365119.0
20070+3651 SEI 889 2002 5 208 8.7 9.39 12.20 B8 D 200702.65+365119.0
20070+3651 SEI 889 2010 6 209 8.9 9.39 12.20 B8 200702.65+365119.0
20070+3651 SEI 889 2015 7 209 9.0 9.39 12.20 B8 200702.65+365119.0

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

 
 
WDS 20070+3651 SEI 889 (HD 227741) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20070+3651 SEI 889 (HD 227741) : MEASURES
 
 
No records found.

 
 
WDS 20070+3651 (HD 227741) : VIRTUAL EYEPIECE
 
 

20070+3651 SEI 889A mag 9.39 Sp B8 20070+3651 SEI 889B sep 8.6 P.A. 203.50 mag 12.2 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20070+3651 (HD 227741) : ALADIN DSS IMAGE @ 20h 07m 02.65s +36° 51' 19.0"
 
 
 
 
WDS 20070+3651 SEI 889 (HD 227741) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20070+3651 SEI 889 distance=1' 20063+3642 SEI 875 distance=14' 20085+3648 SEI 913 distance=19' 20077+3709 POP 190CD distance=19' 20077+3709 POP 190AB distance=20' 20077+3709 POP 190AC distance=20' 20062+3708 SEI 874 distance=20' 20085+3707 SEI 912AB distance=24' 20085+3707 TOB 169AC distance=24' 20068+3628 KPP 804 distance=24' 20076+3627 SEI 898AB distance=25' 20076+3627 SEI 899BC distance=26' 20057+3711 SEI 850 distance=26' 20091+3657 SEI 921 distance=26' 20083+3714 ES 2185 distance=26' 20060+3714 SEI 866AB distance=26' 20060+3714 TOB 165AD distance=26' 20060+3714 TOB 165BC distance=27' 20060+3714 TOB 165CD distance=27' 20069+3718 A 1415 distance=27' 20074+3719 KPP3354 distance=29' 20049+3641 SEI 842 distance=29' 20094+3651 BNW 2AB distance=29' 20094+3651 CIA 19Aa,Ab distance=29' 20050+3707 COU2212 distance=29' 20046+3641 A 1413 distance=32' 20046+3639 SEI 840 distance=33' 20075+3619 SEI 897 distance=33' 20075+3618 TOB 167 distance=34' 20086+3623 TOB 170 distance=35' 20072+3616 BKO 89CD distance=35' 20072+3616 BKO 89EF distance=35' 20078+3617 SEI 903 distance=35' 20090+3626 SEI 920 distance=36' 20072+3616 SEI 891AB distance=36' 20072+3616 BKO 89AC distance=36' 20072+3616 BKO 89AE distance=36' 20094+3630 BKO 96MN distance=36' 20094+3630 BKO 96DL distance=36' 20094+3630 SEI 928AB distance=37' 20094+3630 SEI 927AC distance=37' 20094+3630 SEI 926AD distance=37' 20094+3630 ABH 131AE distance=37' 20094+3630 ABH 131AF distance=37' 20094+3630 ABH 131AG distance=37' 20094+3630 ABH 131AH distance=37' 20094+3630 ABH 131AI distance=37' 20094+3630 BKO 96AJ distance=37' 20094+3630 BKO 96AK distance=37' 20094+3630 BKO 96AM distance=37' 20085+3619 SEI 911 distance=38' 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 20070+3651 SEI 889 209 9.0 1
Show 20063+3642 SEI 875 116 17.1 14
Show 20085+3648 SEI 913 46 5.3 19
Show 20077+3709 POP 190 CD 310 4.4 19
Show 20077+3709 POP 190 AB 186 5.6 20
Show 20077+3709 POP 190 AC 230 40.8 20
Show 20062+3708 SEI 874 347 25.5 20
Show 20085+3707 SEI 912 AB 159 30.4 24
Show 20085+3707 TOB 169 AC 108 24.9 24
Show 20068+3628 KPP 804 42 6.9 24
Show 20076+3627 SEI 898 AB 165 29.1 25
Show 20076+3627 SEI 899 BC 111 23.1 26
Show 20057+3711 SEI 850 339 25.8 26
Show 20091+3657 SEI 921 336 25.7 26
Show 20083+3714 ES 2185 244 2.2 26
Show 20060+3714 SEI 866 AB 326 22.7 26
Show 20060+3714 TOB 165 AD 42 42.2 26
Show 20060+3714 TOB 165 BC 33 22.3 27
Show 20060+3714 TOB 165 CD 102 29.6 27
Show 20069+3718 A 1415 235 4.0 27
Show 20074+3719 KPP3354 283 17.7 29
Show 20049+3641 SEI 842 243 22.7 29
Show 20094+3651 BNW 2 AB 124 81.9 29
Show 20094+3651 CIA 19 Aa,Ab 164 0.0 29
Show 20050+3707 COU2212 198 0.5 29
Show 20046+3641 A 1413 139 2.4 32
Show 20046+3639 SEI 840 69 13.6 33
Show 20075+3619 SEI 897 287 18.2 33
Show 20075+3618 TOB 167 133 12.8 34
Show 20086+3623 TOB 170 3 11.6 35
Show 20072+3616 BKO 89 CD 192 9.7 35
Show 20072+3616 BKO 89 EF 19 7.6 35
Show 20078+3617 SEI 903 187 12.0 35
Show 20090+3626 SEI 920 51 15.0 36
Show 20072+3616 SEI 891 AB 171 18.7 36
Show 20072+3616 BKO 89 AC 349 29.1 36
Show 20072+3616 BKO 89 AE 282 120.8 36
Show 20094+3630 BKO 96 MN 257 17.6 36
Show 20094+3630 BKO 96 DL 18 14.9 36
Show 20094+3630 SEI 928 AB 132 10.3 37
Show 20094+3630 SEI 927 AC 324 18.8 37
Show 20094+3630 SEI 926 AD 349 29.2 37
Show 20094+3630 ABH 131 AE 297 9.8 37
Show 20094+3630 ABH 131 AF 267 10.7 37
Show 20094+3630 ABH 131 AG 282 16.9 37
Show 20094+3630 ABH 131 AH 154 67.2 37
Show 20094+3630 ABH 131 AI 100 99.4 37
Show 20094+3630 BKO 96 AJ 50 17.4 37
Show 20094+3630 BKO 96 AK 29 34.9 37
Show 20094+3630 BKO 96 AM 355 81.1 37
Show 20085+3619 SEI 911 357 28.8 38

 
 
WDS 20070+3651 : COMPONENTS
 
 
  A
B pa=203.5°
sep=8.61"
 
 
20070+3651 A
 
 
Componente originario normalizzato AB Name HD 227741 Coord arcsec 2000 200702.65+365119.0 Mag 9.39
Spectral class B8 (blue-white) PmRA 4.00 PmDE -2.0 SAO 69437
Tycho2 2683-02781-1 HD 227741 DM BD+36 3879
Tycho2
Tycho2 2683-02781-1 Pflag RAmdeg 301.76104391 DEmdeg 36.85529395
PmRA 0.8 PmDE -1.9 E RAmdeg 11 E DEmdeg 11
E pmRA 1.4 E pmDE 1.4 EpRAm 1990.89 EpDEm 1990.89
Num 6 Q RAmdeg 1.7 Q DEmdeg 0.5 Q pmRA 1.8
Q pmDE 0.6 BTmag 9.420 E BTmag 0.020 VTmag 9.390
E VTmag 0.021 Prox 999 TYC T HIP
CCDM RAdeg 301.76104139 DEdeg 36.85529833 EpRA 1990 1.71
EpDE 1990 1.72 E RAdeg 10.5 E DEdeg 11.1 Posflg
Corr -0.1
SAO
SAO 69437 DelFlag RA1950 PmRA1950 0.0003
DE1950 PmDE1950 -0.011 Vmag 9.1 SpType F0
Double code Source 5 CatNum 1934 DM BD+36 3879
DMcomp BDsup HD 227741 M HD 0
GC RA1950rad 5.25863924 DE1950rad 0.64070576 PmRA2000 0.0006
PmDE2000 -0.013
CCDM
Ccdm 20070+3651 RComp Comp A Note1
Note2 Discov num DRAs 2.63 DDEs 18.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.1 Sp B8 PmNote *
PmRA -9 PmDE -15 Dm number +36 3879 Cat1 BD
Name2 +36 1934 Cat2 AGK2/3 HD 227741 M HD
ADS BDS M ADS BDS N IDS IDS 20033N3634A
HIC
 
 
20070+3651 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 200702.36+365111.1 Mag 12.2 PmRA -10.00
PmDE -10.0 Calc delta mag 2.81 Calc coord yes
CCDM
Ccdm 20070+3651 RComp Comp B Note1
Note2 Discov num SEI 889 DRAs DDEs
R dRAs Year 1896 Theta 206 Rho 7.5
Obs 3 Vmag 11.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20033N3634B
HIC