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Doubles in session


Current system
20538+3723
SEI 1299 AB


Nearby doubles
10' : 20533+3731
TDT2606

15' : 20547+3714
TDT2625

15' : 20527+3728
SEI1288

18' : 20533+3740
SEI1294

18' : 20546+3709
SEI1307

19' : 20524+3724
SEI1287

20' : 20549+3709
COU2295

21' : 20544+3704
SEI1305

22' : 20547+3704
STT 419

22' : 20538+3702
SEI1300

25' : 20554+3708
SEI1314

27' : 20544+3658
TDT2623

28' : 20540+3751
TDT2614

29' : 20515+3717
SEI1282

30' : 20561+3731
SEI1322

32' : 20529+3752
TDT2600

32' : 20526+3655
A 1435

34' : 20565+3731
TDT2648

34' : 20521+3657
SEI1285

35' : 20510+3717
SEI1277

36' : 20552+3755
SEI1312

36' : 20526+3756
SEI1289

37' : 20544+3648
SEI1306

39' : 20535+3645
SEI1296

40' : 20528+3646
COU2221

40' : 20525+3759
ES 2516



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

20538+3723 SEI 1299 AB

 
 
20h 53m 47.34s +37° 23' 08.2" P.A. 356.00 sep 9.0 mag 9.04,11.65 Sp K0 dist. 313.48 pc (1022.57 l.y.)
 
 
Coord 2000 20538+3723 Discov num SEI1299 Comp AB Coord arcsec 2000 20 53 47.34 +37 23 08.2
Date first 1896 Date last 2016 Obs 17
Pa first 358 Pa last 356 P.A. Now (θ) 356°
Sep first 8.9 Sep last 9.029 Sep. Now (ρ) 9.029"
Mag pri 9.04 Mag sec 11.65 delta mag (ΔM) 2.61 Spectral class K0 (yellow-orange)
Pri motion ra -004 Sec motion ra -005
Pri motion dec -010 Sec motion dec -006
Notes N (See Notes)
rPM=0.383
Nature of this double is uncertain.
 
 
20538+3723 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 53 47 +37 23 08 SEI 1299 AB 2016 17 356 9.0 9.04 11.65 2.61 <===
Show 20 53 47 +37 23 08 SEI 1301 AC 1896 1 290 26.3 9.04 11.60 2.56
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus HIP 103137 Tycho2 2700-02302-1 Gaia DR2 1872377527983750912
BD BD+36 4305 Distance 313.48 Distance ly 1022.57
 
 
WDS 20538+3723 SEI 1299 AB : NOTES
 
 
discov_num notes refcode
SEI1299 AB: ALI 675.
SEI1301 AC: No star seen on Aladin at AC2000 coordinates of primary. Published
measure corresponds to difference between nonexistent primary and real
B component. Thus the AC measure appears to be another AB measure but
with an error in the coordinates of the A component.
 
 
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
20538+3723 SEI1299 AB 2000 10 356 9.0 9.04 11.65 K0 N D 205347.35+372308.2
20538+3723 SEI1299 AB 2002 11 356 9.1 9.04 11.65 K0 N D 205347.35+372308.2
20538+3723 SEI1299 AB 2012 12 356 9.1 9.04 11.65 K0 N D 205347.35+372308.2
20538+3723 SEI1299 AB 2015 13 356 9.0 9.04 11.65 K0 N 205347.34+372308.2
20538+3723 SEI1299 AB 2016 17 356 9.0 9.04 11.65 K0 N 205347.34+372308.2

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

 
 
WDS 20538+3723 SEI 1299 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20538+3723 SEI 1299 AB : MEASURES
 
 
No records found.

 
 
WDS 20538+3723 : VIRTUAL EYEPIECE
 
 

20538+3723 SEI1299A mag 9.04 Sp K0 20538+3723 SEI1299B sep 9.0 P.A. 356.80 mag 11.65 20538+3723 SEI1301C sep 21.6 P.A. 294.60 mag 11.6 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 20538+3723 : ALADIN DSS IMAGE @ 20h 53m 47.34s +37° 23' 08.2"
 
 
 
 
WDS 20538+3723 SEI 1299 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20538+3723 SEI1299AB distance=0' 20533+3731 TDT2606 distance=10' 20547+3714 TDT2625 distance=15' 20527+3728 SEI1288 distance=15' 20533+3740 SEI1294 distance=18' 20546+3709 SEI1307 distance=18' 20524+3724 SEI1287 distance=19' 20549+3709 COU2295 distance=20' 20544+3704 SEI1305 distance=21' 20547+3704 STT 419 distance=22' 20538+3702 SEI1300 distance=22' 20554+3708 SEI1314 distance=25' 20544+3658 TDT2623 distance=27' 20540+3751 TDT2614 distance=28' 20515+3717 SEI1282 distance=29' 20561+3731 SEI1322 distance=30' 20529+3752 TDT2600 distance=32' 20526+3655 A 1435 distance=32' 20565+3731 TDT2648 distance=34' 20521+3657 SEI1285 distance=34' 20510+3717 SEI1277 distance=35' 20552+3755 SEI1312 distance=36' 20526+3756 SEI1289 distance=36' 20544+3648 SEI1306 distance=37' 20535+3645 SEI1296 distance=39' 20528+3646 COU2221 distance=40' 20525+3759 ES 2516 distance=40' 20521+3758 RAO 442 distance=41' 20506+3740 SKF1925 distance=42' 20549+3803 TDT2626Aa,Ab distance=42' 20549+3803 SEI1309AB distance=42' 20521+3645 ES 250 distance=44' 20561+3649 SEI1321 distance=45' 20512+3650 SEI1280 distance=45' 20575+3717 DAM 221 distance=45' 20533+3639 SEI1293 distance=46' 20501+3714 SEI1268AB distance=46' 20501+3714 CLL 15AC distance=46' 20560+3643 SEI1320 distance=49' 20577+3711 SEI1331 distance=49' 20556+3809 COU2222Aa,Ab distance=51' 20556+3809 SEI1317AB distance=51' 20580+3713 J 1076 distance=51' 20582+3715 DAM 223 distance=54' 20508+3641 SEI1276 distance=55' 20582+3706 TOB 204AB distance=56' 20582+3706 SEI1339CD distance=56' 20503+3645 TDT2568 distance=57' 20563+3634 SEI1324 distance=58' 20507+3807 SEI1275 distance=58' 20544+3625 POP 157 distance=59' 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 20538+3723 SEI1299 AB 356 9.0
Show 20538+3723 SEI1301 AC 290 26.3
Show 20533+3731 TDT2606 65 4.4 10
Show 20547+3714 TDT2625 255 0.5 15
Show 20527+3728 SEI1288 259 24.2 15
Show 20533+3740 SEI1294 26 23.1 18
Show 20546+3709 SEI1307 307 3.7 18
Show 20524+3724 SEI1287 353 6.7 19
Show 20549+3709 COU2295 180 0.4 20
Show 20544+3704 SEI1305 148 23.0 21
Show 20547+3704 STT 419 24 1.7 22
Show 20538+3702 SEI1300 120 1.8 22
Show 20554+3708 SEI1314 178 18.4 25
Show 20544+3658 TDT2623 36 1.0 27
Show 20540+3751 TDT2614 350 0.6 28
Show 20515+3717 SEI1282 270 27.4 29
Show 20561+3731 SEI1322 165 1.5 30
Show 20529+3752 TDT2600 43 0.5 32
Show 20526+3655 A 1435 6 0.5 32
Show 20565+3731 TDT2648 234 0.7 34
Show 20521+3657 SEI1285 301 27.6 34
Show 20510+3717 SEI1277 32 8.1 35
Show 20552+3755 SEI1312 285 8.2 36
Show 20526+3756 SEI1289 240 25.3 36
Show 20544+3648 SEI1306 306 17.1 37
Show 20535+3645 SEI1296 278 10.5 39
Show 20528+3646 COU2221 30 0.3 40
Show 20525+3759 ES 2516 216 6.3 40
Show 20521+3758 RAO 442 81 2.6 41
Show 20506+3740 SKF1925 170 13.8 42
Show 20549+3803 TDT2626 Aa,Ab 20 0.7 42
Show 20549+3803 SEI1309 AB 120 6.5 42
Show 20521+3645 ES 250 88 4.4 44
Show 20561+3649 SEI1321 96 22.7 45
Show 20512+3650 SEI1280 5 3.8 45
Show 20575+3717 DAM 221 59 5.9 45
Show 20533+3639 SEI1293 53 14.2 46
Show 20501+3714 SEI1268 AB 123 27.3 46
Show 20501+3714 CLL 15 AC 20 48.5 46
Show 20560+3643 SEI1320 64 13.9 49
Show 20577+3711 SEI1331 49 26.6 49
Show 20556+3809 COU2222 Aa,Ab 109 0.7 51
Show 20556+3809 SEI1317 AB 171 22.7 51
Show 20580+3713 J 1076 78 1.7 51
Show 20582+3715 DAM 223 35 4.8 54
Show 20508+3641 SEI1276 266 22.6 55
Show 20582+3706 TOB 204 AB 91 9.9 56
Show 20582+3706 SEI1339 CD 259 12.4 56
Show 20503+3645 TDT2568 174 2.4 57
Show 20563+3634 SEI1324 92 19.3 58
Show 20507+3807 SEI1275 196 22.2 58

 
 
WDS 20538+3723 : COMPONENTS
 
 
  A B
B pa=356.8°
sep=9.02"
 
C pa=294.6°
sep=21.60"
pa=270.0°
sep=19.14"
 
 
20538+3723 A
 
 
Coord arcsec 2000 205347.34+372308.2 Mag 9.04 Spectral class K0 (yellow-orange) PmRA -4.00
PmDE -10.0 HIP 103137 Tycho2 2700-02302-1 BD BD+36 4305
Tycho2
Tycho2 2700-02302-1 Pflag RAmdeg 313.44727901 DEmdeg 37.38561338
PmRA -3.9 PmDE -7.9 E RAmdeg 10 E DEmdeg 9
E pmRA 0.9 E pmDE 1.0 EpRAm 1989.58 EpDEm 1990.30
Num 15 Q RAmdeg 0.8 Q DEmdeg 1.7 Q pmRA 0.8
Q pmDE 1.7 BTmag 10.267 E BTmag 0.025 VTmag 9.035
E VTmag 0.014 Prox 90 TYC T HIP 103137
CCDM A RAdeg 313.44729056 DEdeg 37.38563194 EpRA 1990 1.60
EpDE 1990 1.69 E RAdeg 9.9 E DEdeg 9.3 Posflg
Corr 0.1
Hipparcos
Catalog H HIP 103137 Proxy H RAhms 20 53 47.35
DEdms +37 23 08.3 Vmag 8.82 VarFlag R Vmag G
RAdeg 313.447 DEdeg 37.3856 AstroRef A Plx 2.09
CCDM 20538+3723 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 356 Rho 9.036 HD BD BD+36 4305
CD CP Dm number +36 4305 VIred 0.98
SpType K0 R SpType Coord arcsec 2000 205347.35+372308.3
Hipparcos 2
HIP 103137 Sn 15 So 3 Nc 2
RArad 5.4706872078 DErad 0.6525024322 Plx 3.19 PmRA -5.04
PmDE -6.7 E RArad 0.74 E DErad 0.84 E Plx 1.1
E pmRA 0.82 E pmDE 1.01 Hpmag 9.008 E Hpmag 0.0019
SHp 0.021 VA 0 BV 1 E BV 0.042
VI 0.98
CCDM
Ccdm 20538+3723 RComp Comp A Note1
Note2 Discov num DRAs -0.73 DDEs 8.6
R dRAs 10 Year Theta Rho
Obs 3 Vmag 9.4 Sp PmNote *
PmRA -21 PmDE -5 Dm number +36 4305 Cat1 BD
Name2 +37 2047 Cat2 AGK2/3 HD M HD
ADS BDS M ADS BDS N IDS IDS 20499N3701A
HIC 103137
 
 
20538+3723 B
 
 
Coord arcsec 2000 205347.30+372317.2 Mag 11.65 PmRA -5.00 PmDE -6.0
Tycho2 2700-02302-2 Calc delta mag 2.61 Calc coord yes
Tycho2
Tycho2 2700-02302-2 Pflag RAmdeg 313.44701196 DEmdeg 37.38810681
PmRA -5.5 PmDE -5.8 E RAmdeg 53 E DEmdeg 51
E pmRA 1.5 E pmDE 1.4 EpRAm 1971.24 EpDEm 1970.41
Num 9 Q RAmdeg 1.4 Q DEmdeg 1.8 Q pmRA 1.4
Q pmDE 1.9 BTmag 12.120 E BTmag 0.112 VTmag 11.646
E VTmag 0.111 Prox 90 TYC HIP 103137
CCDM B RAdeg 313.44702639 DEdeg 37.38811556 EpRA 1990 1.60
EpDE 1990 1.69 E RAdeg 60.7 E DEdeg 60.0 Posflg
Corr 0.1
CCDM
Ccdm 20538+3723 RComp Comp B Note1
Note2 Discov num SEI1299 DRAs DDEs
R dRAs Year 1896 Theta 357 Rho 8.9
Obs 3 Vmag 11.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N N IDS IDS 20499N3701B
HIC 103137
 
 
20538+3723 C
 
 
Coord arcsec 2000 205345.69+372317.2 Mag 11.6 Calc delta mag 2.56 Calc coord yes
CCDM
Ccdm 20538+3723 RComp Comp C Note1
Note2 Discov num SEI1301 DRAs DDEs
R dRAs Year 1896 Theta 291 Rho 26.2
Obs 1 Vmag 11.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20499N3701B
HIC