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Current system
21047+3908
SEI 1393


Nearby doubles
8' : 21051+3914
ES 1987

16' : 21037+3857
TDT2720

17' : 21040+3854
TDT2723

17' : 21042+3924
SEI1389

25' : 21058+3929
A 2691AB

29' : 21071+3905
ALI 960

30' : 21037+3842
SEI1384

31' : 21054+3937
CRB 137

31' : 21052+3838
ALI 958

32' : 21020+3914
LV 9

33' : 21073+3857
MLB 889

33' : 21071+3852
MLB 888

34' : 21018+3916
STF2746

35' : 21069+3845
STF2758AB

36' : 21023+3931
H 4 113AB

36' : 21074+3853
MLB 890

36' : 21025+3844
SEI1374

40' : 21015+3855
SEI1371

40' : 21070+3839
ES 2059

41' : 21072+3841
MLB1018

42' : 21074+3841
MLB1019

43' : 21029+3946
SEI1379

43' : 21068+3834
TDT2758

44' : 21013+3846
ES 2057

46' : 21035+3825
SEI1381

46' : 21009+3900
SEI1365



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

21047+3908 SEI 1393

 
 
21h 04m 40.24s +39° 07' 59.3" P.A. 132.00 sep 25.7 mag 9.67,10.58
 
 
Coord 2000 21047+3908 Discov num SEI1393 Comp Coord arcsec 2000 21 04 40.24 +39 07 59.3
Date first 1895 Date last 2017 Obs 13
Pa first 142 Pa last 132.4 P.A. Now (θ) 132.4°
Sep first 28.0 Sep last 25.704 Sep. Now (ρ) 25.704"
Mag pri 9.67 Mag sec 10.58 delta mag (ΔM) 0.91 Spectral class
Pri motion ra -008 Sec motion ra +005
Pri motion dec -038 Sec motion dec -002
Notes
rPM=0.986
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3168-02768-1 Gaia DR2 1872254691917535232
 
 
WDS 21047+3908 SEI 1393 : 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
21047+3908 SEI1393 2004 6 133 26.7 9.67 10.58 210440.24+390759.3
21047+3908 SEI1393 2010 9 132 25.7 9.67 10.58 210440.24+390759.3
21047+3908 SEI1393 2016 10 132 26.2 9.67 10.58 210440.24+390759.3
21047+3908 SEI1393 2017 11 132 25.7 9.67 10.58 210440.24+390759.3

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

 
 
WDS 21047+3908 SEI 1393 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21047+3908 SEI 1393 : MEASURES
 
 
No records found.

 
 
WDS 21047+3908 : VIRTUAL EYEPIECE
 
 

21047+3908 SEI1393A mag 9.67 21047+3908 SEI1393B sep 22.7 P.A. 139.70 mag 10.58 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21047+3908 : ALADIN DSS IMAGE @ 21h 04m 40.24s +39° 07' 59.3"
 
 
 
 
WDS 21047+3908 SEI 1393 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21047+3908 SEI1393 distance=0' 21051+3914 ES 1987 distance=8' 21037+3857 TDT2720 distance=16' 21040+3854 TDT2723 distance=17' 21042+3924 SEI1389 distance=17' 21058+3929 A 2691AB distance=25' 21058+3929 A 2691AC distance=25' 21058+3929 A 2691CD distance=25' 21071+3905 ALI 960 distance=29' 21037+3842 SEI1384 distance=30' 21054+3937 CRB 137 distance=31' 21052+3838 ALI 958 distance=31' 21020+3914 LV 9 distance=32' 21073+3857 MLB 889 distance=33' 21071+3852 MLB 888 distance=33' 21018+3916 STF2746 distance=34' 21023+3931 WRD 4ED distance=34' 21023+3931 WRD 4EH distance=34' 21069+3845 STF2758AB distance=35' 21069+3845 STF2758AD distance=35' 21069+3845 STF2758AE distance=35' 21069+3845 STF2758AF distance=35' 21069+3845 STF2758AG distance=35' 21069+3845 STF2758AH distance=35' 21069+3845 SMR 1AI distance=35' 21069+3845 STF2758AC distance=35' 21069+3845 HZE 4AJ distance=35' 21069+3845 HZE 4AK distance=35' 21069+3845 SMR 40AO distance=35' 21069+3845 SMR 40AP distance=35' 21069+3845 SMR 40AQ distance=35' 21023+3931 H 4 113AB distance=36' 21023+3931 H 4 113AC distance=36' 21023+3931 SMY 6AE distance=36' 21023+3931 WRD 4AF distance=36' 21023+3931 SMY 6AD distance=36' 21023+3931 WRD 4AG distance=36' 21023+3931 FYM 114AI distance=36' 21069+3845 HZE 4BL distance=36' 21069+3845 TNN 15BR distance=36' 21069+3845 STF2758BC distance=36' 21069+3845 FYM 106BM distance=36' 21069+3845 FYM 106BN distance=36' 21074+3853 MLB 890 distance=36' 21025+3844 SEI1374 distance=36' 21015+3855 SEI1371 distance=40' 21070+3839 ES 2059 distance=40' 21072+3841 MLB1018 distance=41' 21074+3841 MLB1019 distance=42' 21029+3946 SEI1379 distance=43' 21068+3834 TDT2758 distance=43' 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 21047+3908 SEI1393 132 25.7
Show 21051+3914 ES 1987 354 7.0 8
Show 21037+3857 TDT2720 214 0.5 16
Show 21040+3854 TDT2723 122 2.6 17
Show 21042+3924 SEI1389 61 18.2 17
Show 21058+3929 A 2691 AB 217 2.7 25
Show 21058+3929 A 2691 AC 313 27.4 25
Show 21058+3929 A 2691 CD 275 6.4 25
Show 21071+3905 ALI 960 110 12.9 29
Show 21037+3842 SEI1384 95 26.4 30
Show 21054+3937 CRB 137 352 29.3 31
Show 21052+3838 ALI 958 146 8.1 31
Show 21020+3914 LV 9 195 2.3 32
Show 21073+3857 MLB 889 5 7.0 33
Show 21071+3852 MLB 888 55 4.0 33
Show 21018+3916 STF2746 323 1.2 34
Show 21023+3931 WRD 4 ED 230 77.7 34
Show 21023+3931 WRD 4 EH 159 37.4 34
Show 21069+3845 STF2758 AB 154 32.0 35
Show 21069+3845 STF2758 AD 250 748.0 35
Show 21069+3845 STF2758 AE 267 340.8 35
Show 21069+3845 STF2758 AF 240 371.2 35
Show 21069+3845 STF2758 AG 236 260.4 35
Show 21069+3845 STF2758 AH 263 134.0 35
Show 21069+3845 SMR 1 AI 236 49.3 35
Show 21069+3845 STF2758 AC 219 839.8 35
Show 21069+3845 HZE 4 AJ 241 17.5 35
Show 21069+3845 HZE 4 AK 83 7.8 35
Show 21069+3845 SMR 40 AO 275 176.6 35
Show 21069+3845 SMR 40 AP 284 166.5 35
Show 21069+3845 SMR 40 AQ 295 76.1 35
Show 21023+3931 H 4 113 AB 299 18.9 36
Show 21023+3931 H 4 113 AC 248 26.7 36
Show 21023+3931 SMY 6 AE 87 95.7 36
Show 21023+3931 WRD 4 AF 223 101.8 36
Show 21023+3931 SMY 6 AD 141 57.0 36
Show 21023+3931 WRD 4 AG 230 95.0 36
Show 21023+3931 FYM 114 AI 277 41.1 36
Show 21069+3845 HZE 4 BL 145 9.9 36
Show 21069+3845 TNN 15 BR 77 11.5 36
Show 21069+3845 STF2758 BC 221 827.6 36
Show 21069+3845 FYM 106 BM 238 100.7 36
Show 21069+3845 FYM 106 BN 152 48.3 36
Show 21074+3853 MLB 890 250 5.3 36
Show 21025+3844 SEI1374 104 17.0 36
Show 21015+3855 SEI1371 147 11.2 40
Show 21070+3839 ES 2059 267 6.8 40
Show 21072+3841 MLB1018 252 4.4 41
Show 21074+3841 MLB1019 226 4.3 42
Show 21029+3946 SEI1379 7 19.4 43
Show 21068+3834 TDT2758 236 2.0 43

 
 
WDS 21047+3908 : COMPONENTS
 
 
  A
B pa=139.7°
sep=22.74"
 
 
21047+3908 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 210440.24+390759.3 Mag 9.67 PmRA -8.00
PmDE -38.0 Tycho2 3168-02768-1
Tycho2
Tycho2 3168-02768-1 Pflag RAmdeg 316.16768033 DEmdeg 39.13314253
PmRA -11.9 PmDE -38.6 E RAmdeg 14 E DEmdeg 13
E pmRA 1.8 E pmDE 1.7 EpRAm 1990.27 EpDEm 1990.42
Num 5 Q RAmdeg 1.0 Q DEmdeg 0.6 Q pmRA 0.9
Q pmDE 0.6 BTmag 10.421 E BTmag 0.028 VTmag 9.671
E VTmag 0.021 Prox 264 TYC T HIP
CCDM RAdeg 316.16771833 DEdeg 39.13323111 EpRA 1990 1.59
EpDE 1990 1.67 E RAdeg 14.5 E DEdeg 14.0 Posflg
Corr -0.1
CCDM
Ccdm 21047+3908 RComp Comp A Note1
Note2 Discov num DRAs -1.76 DDEs 0.0
R dRAs 65 Year Theta Rho
Obs 2 Vmag 10.2 Sp PmNote
PmRA PmDE Dm number +38 4333 Cat1 BD
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21008N3844A
HIC
 
 
21047+3908 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 210441.51+390742.0 Mag 10.58 PmRA 5.00
PmDE -2.0 Tycho2 3168-00990-1 Calc delta mag 0.91 Calc coord yes
Tycho2
Tycho2 3168-00990-1 Pflag RAmdeg 316.17457353 DEmdeg 39.12816881
PmRA 3.3 PmDE -1.8 E RAmdeg 31 E DEmdeg 31
E pmRA 2.5 E pmDE 2.3 EpRAm 1987.69 EpDEm 1988.05
Num 5 Q RAmdeg 0.5 Q DEmdeg 0.8 Q pmRA 0.4
Q pmDE 0.8 BTmag 12.687 E BTmag 0.190 VTmag 10.581
E VTmag 0.039 Prox 264 TYC T HIP
CCDM RAdeg 316.17456000 DEdeg 39.12817694 EpRA 1990 1.61
EpDE 1990 1.71 E RAdeg 37.5 E DEdeg 35.2 Posflg
Corr 0.0
CCDM
Ccdm 21047+3908 RComp Comp B Note1
Note2 Discov num SEI1393 DRAs -0.12 DDEs -18.6
R dRAs 65 Year 1895 Theta 141 Rho 28.0
Obs 1 Vmag 12.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21008N3844B
HIC