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20550+3929
SEI 1311


Nearby doubles
5' : 20549+3933
BKO 471

5' : 20547+3929
GRV 395

6' : 20555+3932
BKO 472

8' : 20544+3929
BKO 469

11' : 20545+3937
BRT2281

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MLB 957

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MLB 886

14' : 20559+3921
MLB 958

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MLB 783

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MLB 782AB

15' : 20550+3914
ES 1983

16' : 20553+3944
SEI1315

16' : 20546+3914
MLB 780AB

16' : 20549+3913
MLB 781

18' : 20566+3932
SEI1325

18' : 20556+3912
SEI1319

19' : 20556+3911
MLB 784

19' : 20554+3910
ES 1984

20' : 20555+3909
MLB 887

23' : 20554+3907
TDT2629

23' : 20569+3922
SEI1326

24' : 20558+3951
LDS2469

26' : 20531+3940
SEI1292

26' : 20571+3920
BKO 473

26' : 20558+3905
MLB 956

26' : 20572+3920
BKO 474



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

20550+3929 SEI 1311

 
 
20h 55m 03.26s +39° 28' 48.9" P.A. 247.00 sep 8.8 mag 11.04,11.10
 
 
Coord 2000 20550+3929 Discov num SEI1311 Comp Coord arcsec 2000 20 55 03.26 +39 28 48.9
Date first 1892 Date last 2015 Obs 14
Pa first 250 Pa last 247.4 P.A. Now (θ) 247.4°
Sep first 8.9 Sep last 8.8 Sep. Now (ρ) 8.8"
Mag pri 11.04 Mag sec 11.10 delta mag (ΔM) 0.06 Spectral class
Pri motion ra +001 Sec motion ra -003
Pri motion dec +000 Sec motion dec -004
Notes N (See Notes)
rPM=1.131
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3171-00092-1 Gaia DR2 1872853199900312704
 
 
WDS 20550+3929 SEI 1311 : NOTES
 
 
discov_num notes refcode
SEI1311 ALI1150.
 
 
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
20550+3929 SEI1311 1895 1 69 8.4 10.80 10.80 205502.55+392845.4
20550+3929 SEI1311 1998 4 247 8.9 11.04 11.10 N D 205503.26+392848.9
20550+3929 SEI1311 2008 5 247 8.9 11.04 11.10 N D 205503.26+392848.9
20550+3929 SEI1311 2014 8 247 9.0 11.04 11.10 N 205503.26+392848.9
20550+3929 SEI1311 2015 9 247 8.8 11.04 11.10 N 205503.26+392848.9

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

 
 
WDS 20550+3929 SEI 1311 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20550+3929 SEI 1311 : MEASURES
 
 
No records found.

 
 
WDS 20550+3929 : VIRTUAL EYEPIECE
 
 

20550+3929 SEI1311A mag 11.04 20550+3929 SEI1311B sep 7.1 P.A. 241.70 mag 11.1 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20550+3929 : ALADIN DSS IMAGE @ 20h 55m 03.26s +39° 28' 48.9"
 
 
 
 
WDS 20550+3929 SEI 1311 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20550+3929 SEI1311 distance=0' 20549+3933 BKO 471 distance=5' 20547+3929 GRV 395 distance=5' 20555+3932 BKO 472 distance=6' 20544+3929 BKO 469 distance=8' 20545+3937 BRT2281 distance=11' 20559+3922 MLB 957 distance=12' 20551+3941 MLB 886 distance=13' 20559+3921 MLB 958 distance=14' 20555+3940 MLB 783 distance=14' 20552+3915 MLB 782AB distance=14' 20552+3915 SEI1313AC distance=14' 20550+3914 ES 1983 distance=15' 20553+3944 SEI1315 distance=16' 20546+3914 BKO 470BC distance=16' 20546+3914 MLB 780AB distance=16' 20549+3913 MLB 781 distance=16' 20566+3932 SEI1325 distance=18' 20556+3912 SEI1319 distance=18' 20556+3911 MLB 784 distance=19' 20554+3910 ES 1984 distance=19' 20555+3909 MLB 887 distance=20' 20554+3907 TDT2629 distance=23' 20569+3922 SEI1326 distance=23' 20558+3951 LDS2469 distance=24' 20531+3940 SEI1292 distance=26' 20571+3920 BKO 473 distance=26' 20558+3905 MLB 956 distance=26' 20572+3920 BKO 474 distance=26' 20528+3925 SEI1290 distance=28' 20577+3943 COU2429 distance=28' 20556+3901 HJ 1596 distance=29' 20546+3900 SEI1308 distance=30' 20577+3926 SEI1334 distance=32' 20562+3900 ES 2055 distance=32' 20578+3923 BKO 475 distance=33' 20556+3856 MLB 785 distance=34' 20556+4004 TDT2634 distance=36' 20566+3858 A 1436 distance=36' 20580+3918 BKO 476BD distance=37' 20580+3918 ES 1985AB distance=37' 20580+3918 SEI1338AC distance=37' 20519+3911 SEI1283 distance=42' 20587+3922 BKO 478 distance=43' 20514+3927 TDT2581 distance=43' 20587+3942 BKO 477 distance=44' 20515+3944 DAM 317AB distance=45' 20515+3944 DAM 317AC distance=45' 20530+3851 ALI 954 distance=45' 20589+3931 SEI1348 distance=46' 20514+3945 MLB 779AB distance=46' 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 20550+3929 SEI1311 247 8.8
Show 20549+3933 BKO 471 171 5.5 5
Show 20547+3929 GRV 395 211 59.7 5
Show 20555+3932 BKO 472 67 5.7 6
Show 20544+3929 BKO 469 328 4.7 8
Show 20545+3937 BRT2281 73 3.6 11
Show 20559+3922 MLB 957 134 2.8 12
Show 20551+3941 MLB 886 141 7.0 13
Show 20559+3921 MLB 958 169 5.3 14
Show 20555+3940 MLB 783 288 5.6 14
Show 20552+3915 MLB 782 AB 344 10.3 14
Show 20552+3915 SEI1313 AC 260 26.9 14
Show 20550+3914 ES 1983 266 6.1 15
Show 20553+3944 SEI1315 281 29.0 16
Show 20546+3914 BKO 470 BC 280 2.9 16
Show 20546+3914 MLB 780 AB 64 9.6 16
Show 20549+3913 MLB 781 296 8.6 16
Show 20566+3932 SEI1325 140 27.8 18
Show 20556+3912 SEI1319 70 32.1 18
Show 20556+3911 MLB 784 25 4.6 19
Show 20554+3910 ES 1984 115 3.5 19
Show 20555+3909 MLB 887 246 10.4 20
Show 20554+3907 TDT2629 163 2.5 23
Show 20569+3922 SEI1326 14 26.6 23
Show 20558+3951 LDS2469 2 3.3 24
Show 20531+3940 SEI1292 205 24.8 26
Show 20571+3920 BKO 473 34 5.4 26
Show 20558+3905 MLB 956 115 5.0 26
Show 20572+3920 BKO 474 24 3.3 26
Show 20528+3925 SEI1290 222 14.2 28
Show 20577+3943 COU2429 209 0.8 28
Show 20556+3901 HJ 1596 295 18.2 29
Show 20546+3900 SEI1308 93 6.0 30
Show 20577+3926 SEI1334 106 16.9 32
Show 20562+3900 ES 2055 293 7.6 32
Show 20578+3923 BKO 475 265 5.5 33
Show 20556+3856 MLB 785 5 6.4 34
Show 20556+4004 TDT2634 54 1.9 36
Show 20566+3858 A 1436 52 0.6 36
Show 20580+3918 BKO 476 BD 246 6.0 37
Show 20580+3918 ES 1985 AB 276 8.4 37
Show 20580+3918 SEI1338 AC 277 32.7 37
Show 20519+3911 SEI1283 1 22.8 42
Show 20587+3922 BKO 478 75 7.9 43
Show 20514+3927 TDT2581 146 0.8 43
Show 20587+3942 BKO 477 8 7.6 44
Show 20515+3944 DAM 317 AB 95 14.8 45
Show 20515+3944 DAM 317 AC 357 15.2 45
Show 20530+3851 ALI 954 61 8.9 45
Show 20589+3931 SEI1348 295 26.4 46
Show 20514+3945 MLB 779 AB 124 9.0 46

 
 
WDS 20550+3929 : COMPONENTS
 
 
  A
B pa=241.7°
sep=7.12"
 
 
20550+3929 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205503.26+392848.9 Mag 11.04 PmRA 1.00
PmDE 0.0 Tycho2 3171-00092-1
Tycho2
Tycho2 3171-00092-1 Pflag RAmdeg 313.76360562 DEmdeg 39.48025300
PmRA -3.7 PmDE -0.4 E RAmdeg 39 E DEmdeg 35
E pmRA 1.7 E pmDE 1.6 EpRAm 1985.16 EpDEm 1985.94
Num 4 Q RAmdeg 1.6 Q DEmdeg 0.3 Q pmRA 1.5
Q pmDE 0.3 BTmag 11.289 E BTmag 0.057 VTmag 11.042
E VTmag 0.068 Prox 999 TYC T HIP
CCDM RAdeg 313.76361583 DEdeg 39.48025389 EpRA 1990 1.50
EpDE 1990 1.65 E RAdeg 40.1 E DEdeg 36.1 Posflg
Corr 0.1
 
 
20550+3929 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205502.72+392845.5 Mag 11.1 PmRA -3.00
PmDE -4.0 Calc delta mag 0.06 Calc coord yes