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Current system
20091+3657
SEI 921


Nearby doubles
7' : 20094+3651
BNW 2AB

11' : 20085+3648
SEI 913

13' : 20085+3707
SEI 912AB

18' : 20102+3644
ES 87

19' : 20107+3657
SEI 953

20' : 20104+3644
SEI 945AB

21' : 20108+3654
SEI 956

21' : 20103+3643
SMR 77

21' : 20107+3703
STT 399AB

21' : 20108+3652
SEI 957

22' : 20077+3709
POP 190AB

22' : 20083+3714
ES 2185

24' : 20108+3646
SEI 958

24' : 20103+3715
SEI 942

26' : 20106+3714
SEI 951AB

26' : 20070+3651
SEI 889

27' : 20110+3642
SEI 962

27' : 20094+3630
SEI 928AB

27' : 20108+3713
TOB 174AB

28' : 20105+3635
SEI 948

28' : 20108+3637
TDT2052

29' : 20098+3629
COU2413

29' : 20112+3710
SEI 964

30' : 20090+3626
SEI 920

31' : 20117+3654
SLE 957

32' : 20074+3719
KPP3354



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

20091+3657 SEI 921

 
 
20h 09m 06.42s +36° 55' 52.7" P.A. 336.00 sep 25.7 mag 10.73,13.16 Sp M7
 
 
Coord 2000 20091+3657 Discov num SEI 921 Comp Coord arcsec 2000 20 09 06.42 +36 55 52.7
Date first 1896 Date last 2016 Obs 8
Pa first 338 Pa last 336.1 P.A. Now (θ) 336.1°
Sep first 25.5 Sep last 25.7 Sep. Now (ρ) 25.7"
Mag pri 10.73 Mag sec 13.16 delta mag (ΔM) 2.43 Spectral class M7 (red)
Pri motion ra -000 Sec motion ra -002
Pri motion dec -007 Sec motion dec -006
Notes
rPM=0.319
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2683-01269-1 Gaia DR2 2059266673339472896
 
 
WDS 20091+3657 SEI 921 : 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
20091+3657 SEI 921 1896 1 158 25.5 11.00 11.00 200905.56+365617.3
20091+3657 SEI 921 2002 2 156 25.8 11.00 11.00 200905.56+365617.3
20091+3657 SEI 921 2016 3 336 25.7 10.73 13.16 M7 200906.42+365552.7

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

 
 
WDS 20091+3657 SEI 921 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20091+3657 SEI 921 : MEASURES
 
 
No records found.

 
 
WDS 20091+3657 : VIRTUAL EYEPIECE
 
 

20091+3657 SEI 921A mag 10.73 Sp M7 20091+3657 SEI 921B sep 24.9 P.A. 340.50 mag 13.16 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 20091+3657 : ALADIN DSS IMAGE @ 20h 09m 06.42s +36° 55' 52.7"
 
 
 
 
WDS 20091+3657 SEI 921 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20091+3657 SEI 921 distance=0' 20094+3651 BNW 2AB distance=7' 20094+3651 CIA 19Aa,Ab distance=7' 20085+3648 SEI 913 distance=11' 20085+3707 SEI 912AB distance=13' 20085+3707 TOB 169AC distance=13' 20102+3644 ES 87 distance=18' 20107+3657 SEI 953 distance=19' 20104+3644 SEI 945AB distance=20' 20104+3644 SEI 946AC distance=20' 20108+3654 SEI 956 distance=21' 20103+3643 SMR 77 distance=21' 20107+3703 STT 399AB distance=21' 20107+3703 WAL 129AC distance=21' 20108+3652 SEI 957 distance=21' 20077+3709 POP 190AB distance=22' 20077+3709 POP 190AC distance=22' 20083+3714 ES 2185 distance=22' 20077+3709 POP 190CD distance=22' 20108+3646 SEI 958 distance=24' 20103+3715 SEI 942 distance=24' 20106+3714 SEI 951AB distance=26' 20106+3714 SEI 950AC distance=26' 20070+3651 SEI 889 distance=26' 20094+3630 BKO 96MN distance=26' 20094+3630 BKO 96DL distance=27' 20108+3713 SLE 952BC distance=27' 20108+3713 SLE 952BD distance=27' 20110+3642 SEI 962 distance=27' 20094+3630 SEI 928AB distance=27' 20094+3630 SEI 927AC distance=27' 20094+3630 SEI 926AD distance=27' 20094+3630 ABH 131AE distance=27' 20094+3630 ABH 131AF distance=27' 20094+3630 ABH 131AG distance=27' 20094+3630 ABH 131AH distance=27' 20094+3630 ABH 131AI distance=27' 20094+3630 BKO 96AJ distance=27' 20094+3630 BKO 96AK distance=27' 20094+3630 BKO 96AM distance=27' 20108+3713 TOB 174AB distance=27' 20105+3635 SEI 948 distance=28' 20108+3637 TDT2052 distance=28' 20098+3629 COU2413 distance=29' 20112+3710 SEI 964 distance=29' 20090+3626 SEI 920 distance=30' 20117+3654 SLE 957 distance=31' 20074+3719 KPP3354 distance=32' 20117+3706 SEI 980 distance=33' 20112+3718 SEI 965 distance=34' 20086+3623 TOB 170 distance=34' 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 20091+3657 SEI 921 336 25.7
Show 20094+3651 BNW 2 AB 124 81.9 7
Show 20094+3651 CIA 19 Aa,Ab 164 0.0 7
Show 20085+3648 SEI 913 46 5.3 11
Show 20085+3707 SEI 912 AB 159 30.4 13
Show 20085+3707 TOB 169 AC 108 24.9 13
Show 20102+3644 ES 87 298 8.5 18
Show 20107+3657 SEI 953 301 17.4 19
Show 20104+3644 SEI 945 AB 274 5.9 20
Show 20104+3644 SEI 946 AC 64 13.7 20
Show 20108+3654 SEI 956 257 12.0 21
Show 20103+3643 SMR 77 92 2.9 21
Show 20107+3703 STT 399 AB 278 4.6 21
Show 20107+3703 WAL 129 AC 271 26.9 21
Show 20108+3652 SEI 957 76 28.3 21
Show 20077+3709 POP 190 AB 186 5.6 22
Show 20077+3709 POP 190 AC 230 40.8 22
Show 20083+3714 ES 2185 244 2.2 22
Show 20077+3709 POP 190 CD 310 4.4 22
Show 20108+3646 SEI 958 323 21.4 24
Show 20103+3715 SEI 942 122 7.5 24
Show 20106+3714 SEI 951 AB 63 12.0 26
Show 20106+3714 SEI 950 AC 37 16.0 26
Show 20070+3651 SEI 889 209 9.0 26
Show 20094+3630 BKO 96 MN 257 17.6 26
Show 20094+3630 BKO 96 DL 18 14.9 27
Show 20108+3713 SLE 952 BC 91 6.8 27
Show 20108+3713 SLE 952 BD 353 12.2 27
Show 20110+3642 SEI 962 289 23.3 27
Show 20094+3630 SEI 928 AB 132 10.3 27
Show 20094+3630 SEI 927 AC 324 18.8 27
Show 20094+3630 SEI 926 AD 349 29.2 27
Show 20094+3630 ABH 131 AE 297 9.8 27
Show 20094+3630 ABH 131 AF 267 10.7 27
Show 20094+3630 ABH 131 AG 282 16.9 27
Show 20094+3630 ABH 131 AH 154 67.2 27
Show 20094+3630 ABH 131 AI 100 99.4 27
Show 20094+3630 BKO 96 AJ 50 17.4 27
Show 20094+3630 BKO 96 AK 29 34.9 27
Show 20094+3630 BKO 96 AM 355 81.1 27
Show 20108+3713 TOB 174 AB 263 25.1 27
Show 20105+3635 SEI 948 88 21.7 28
Show 20108+3637 TDT2052 142 2.3 28
Show 20098+3629 COU2413 91 0.8 29
Show 20112+3710 SEI 964 108 21.1 29
Show 20090+3626 SEI 920 51 15.0 30
Show 20117+3654 SLE 957 335 6.7 31
Show 20074+3719 KPP3354 283 17.7 32
Show 20117+3706 SEI 980 185 23.8 33
Show 20112+3718 SEI 965 220 20.5 34
Show 20086+3623 TOB 170 3 11.6 34

 
 
WDS 20091+3657 : COMPONENTS
 
 
  A
B pa=340.5°
sep=24.93"
 
 
20091+3657 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 200906.42+365552.7 Mag 10.73 Spectral class M7 (red)
PmRA 0.00 PmDE -7.0 Tycho2 2683-01269-1
Tycho2
Tycho2 2683-01269-1 Pflag RAmdeg 302.27674382 DEmdeg 36.93136668
PmRA -0.7 PmDE -4.1 E RAmdeg 35 E DEmdeg 46
E pmRA 2.6 E pmDE 2.5 EpRAm 1985.27 EpDEm 1986.01
Num 4 Q RAmdeg 2.3 Q DEmdeg 0.3 Q pmRA 2.3
Q pmDE 0.3 BTmag 12.228 E BTmag 0.148 VTmag 11.105
E VTmag 0.076 Prox 836 TYC HIP
CCDM RAdeg 302.27671806 DEdeg 36.93137472 EpRA 1990 1.58
EpDE 1990 1.62 E RAdeg 56.0 E DEdeg 53.0 Posflg
Corr 0.0
 
 
20091+3657 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 200905.73+365616.2 Mag 13.16 PmRA -2.00
PmDE -6.0 Calc delta mag 2.43 Calc coord yes