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Current system
20506+3552
SEI 1273


Nearby doubles
11' : 20513+3546
TDT2580

15' : 20494+3548
SEI1262

19' : 20520+3547
TDT2589

19' : 20501+3534
TDT2567

22' : 20522+3544
HJ 1586

23' : 20499+3531
SEI1266

24' : 20503+3615
TDT2569

24' : 20506+3615
SEI1274

26' : 20485+3550
SEI1254

29' : 20528+3602
TDT2598

31' : 20485+3608
SEI1253

31' : 20481+3554
SEI1252

33' : 20490+3619
COU1811

37' : 20531+3610
SEI1291

40' : 20536+3605
SEI1297

40' : 20535+3534
SEI1295

43' : 20471+3545
SEI1247

44' : 20505+3635
SEI1271AB

44' : 20522+3513
HO 145

49' : 20465+3550
ES 2196

49' : 20500+3640
TOB 199

50' : 20508+3641
SEI1276

50' : 20538+3622
SEI1302

50' : 20502+3642
SEI1270

52' : 20542+3528
GRV 394

52' : 20491+3640
SEI1260



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

20506+3552 SEI 1273

 
 
20h 50m 35.10s +35° 52' 02.2" P.A. 159.00 sep 24.1 mag 12.18,11.14
 
 
Coord 2000 20506+3552 Discov num SEI1273 Comp Coord arcsec 2000 20 50 35.10 +35 52 02.2
Date first 1896 Date last 2015 Obs 11
Pa first 156 Pa last 158.8 P.A. Now (θ) 158.8°
Sep first 23.4 Sep last 24.103 Sep. Now (ρ) 24.103"
Mag pri 12.18 Mag sec 11.14 delta mag (ΔM) 1.04 Spectral class
Pri motion ra -002 Sec motion ra -006
Pri motion dec -003 Sec motion dec -012
Notes
rPM=0.734
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2699-00023-1 Gaia DR2 1869938124003431552
 
 
WDS 20506+3552 SEI 1273 : 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
20506+3552 SEI1273 1999 5 158 24.0 11.68 11.14 D 205035.10+355202.2
20506+3552 SEI1273 2002 6 159 24.0 11.68 11.14 D 205035.10+355202.2
20506+3552 SEI1273 2010 7 159 23.5 12.18 11.14 205035.10+355202.2
20506+3552 SEI1273 2015 8 159 24.1 12.18 11.14 205035.10+355202.2

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

 
 
WDS 20506+3552 SEI 1273 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20506+3552 SEI 1273 : MEASURES
 
 
No records found.

 
 
WDS 20506+3552 : VIRTUAL EYEPIECE
 
 

20506+3552 SEI1273A mag 12.18 20506+3552 SEI1273B sep 23.6 P.A. 162.60 mag 11.14 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 20506+3552 : ALADIN DSS IMAGE @ 20h 50m 35.10s +35° 52' 02.2"
 
 
 
 
WDS 20506+3552 SEI 1273 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20506+3552 SEI1273 distance=0' 20513+3546 TDT2580 distance=11' 20494+3548 SEI1262 distance=15' 20520+3547 TDT2589 distance=19' 20501+3534 TDT2567 distance=19' 20522+3544 HJ 1586 distance=22' 20499+3531 SEI1266 distance=23' 20503+3615 TDT2569 distance=24' 20506+3615 SEI1274 distance=24' 20485+3550 SEI1254 distance=26' 20528+3602 TDT2598 distance=29' 20485+3608 SEI1253 distance=31' 20481+3554 SEI1252 distance=31' 20490+3619 COU1811 distance=33' 20531+3610 SEI1291 distance=37' 20536+3605 SEI1297 distance=40' 20535+3534 SEI1295 distance=40' 20471+3545 SEI1247 distance=43' 20505+3635 SEI1271AB distance=44' 20505+3635 SEI1272AC distance=44' 20522+3513 HO 145 distance=44' 20465+3550 ES 2196 distance=49' 20500+3640 TOB 199 distance=49' 20508+3641 SEI1276 distance=50' 20538+3622 SEI1302 distance=50' 20502+3642 SEI1270 distance=50' 20542+3528 GRV 394 distance=52' 20491+3640 SEI1260 distance=52' 20474+3629 FYM 126CD distance=53' 20474+3629 FYM 126CE distance=53' 20536+3514 HO 146 distance=54' 20503+3645 TDT2568 distance=54' 20462+3546 SEI1243AB distance=54' 20462+3546 TDT2529Aa,Ab distance=54' 20489+3503 SEI1257AB distance=54' 20474+3629 MCA 63Aa,Ab distance=54' 20474+3629 STT 413AB distance=54' 20474+3629 S 765AC distance=54' 20474+3629 FYM 126AF distance=54' 20460+3554 TDT2525 distance=56' 20537+3512 SEI1298 distance=56' 20521+3645 ES 250 distance=56' 20460+3601 SEI1242 distance=57' 20544+3625 POP 157 distance=57' 20533+3639 SEI1293 distance=57' 20462+3533 ES 2252AB distance=57' 20462+3533 LMP 18AB,C distance=57' 20462+3533 LMP 18AB,D distance=57' 20512+3650 SEI1280 distance=60' 20528+3646 COU2221 distance=60' 20551+3523 SEI1310 distance=63' 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 20506+3552 SEI1273 159 24.1
Show 20513+3546 TDT2580 151 0.7 11
Show 20494+3548 SEI1262 301 6.1 15
Show 20520+3547 TDT2589 192 0.5 19
Show 20501+3534 TDT2567 125 0.4 19
Show 20522+3544 HJ 1586 260 16.2 22
Show 20499+3531 SEI1266 179 10.5 23
Show 20503+3615 TDT2569 55 0.4 24
Show 20506+3615 SEI1274 243 33.5 24
Show 20485+3550 SEI1254 20 22.3 26
Show 20528+3602 TDT2598 227 0.5 29
Show 20485+3608 SEI1253 83 24.1 31
Show 20481+3554 SEI1252 115 17.3 31
Show 20490+3619 COU1811 255 0.8 33
Show 20531+3610 SEI1291 103 9.0 37
Show 20536+3605 SEI1297 270 18.6 40
Show 20535+3534 SEI1295 32 9.6 40
Show 20471+3545 SEI1247 78 25.6 43
Show 20505+3635 SEI1271 AB 27 14.9 44
Show 20505+3635 SEI1272 AC 185 20.4 44
Show 20522+3513 HO 145 286 16.9 44
Show 20465+3550 ES 2196 70 5.6 49
Show 20500+3640 TOB 199 109 18.8 49
Show 20508+3641 SEI1276 266 22.6 50
Show 20538+3622 SEI1302 47 25.0 50
Show 20502+3642 SEI1270 211 23.1 50
Show 20542+3528 GRV 394 6 71.0 52
Show 20491+3640 SEI1260 42 7.5 52
Show 20474+3629 FYM 126 CD 112 9.4 53
Show 20474+3629 FYM 126 CE 207 40.1 53
Show 20536+3514 HO 146 46 0.4 54
Show 20503+3645 TDT2568 174 2.4 54
Show 20462+3546 SEI1243 AB 203 16.2 54
Show 20462+3546 TDT2529 Aa,Ab 218 0.6 54
Show 20489+3503 SEI1257 AB 215 17.9 54
Show 20474+3629 MCA 63 Aa,Ab 46 0.1 54
Show 20474+3629 STT 413 AB 1 0.9 54
Show 20474+3629 S 765 AC 106 82.8 54
Show 20474+3629 FYM 126 AF 119 52.0 54
Show 20460+3554 TDT2525 70 0.6 56
Show 20537+3512 SEI1298 15 28.2 56
Show 20521+3645 ES 250 88 4.4 56
Show 20460+3601 SEI1242 214 23.6 57
Show 20544+3625 POP 157 224 3.0 57
Show 20533+3639 SEI1293 53 14.2 57
Show 20462+3533 ES 2252 AB 294 4.2 57
Show 20462+3533 LMP 18 AB,C 82 26.0 57
Show 20462+3533 LMP 18 AB,D 85 35.5 57
Show 20512+3650 SEI1280 5 3.8 60
Show 20528+3646 COU2221 30 0.3 60
Show 20551+3523 SEI1310 281 29.3 63

 
 
WDS 20506+3552 : COMPONENTS
 
 
  A
B pa=162.6°
sep=23.56"
 
 
20506+3552 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205035.10+355202.2 Mag 12.18 PmRA -2.00
PmDE -3.0
CCDM
Ccdm 20506+3552 RComp Comp A Note1
Note2 Discov num DRAs -0.90 DDEs 2.1
R dRAs 65 Year Theta Rho
Obs 2 Vmag 10.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20467N3530A
HIC
 
 
20506+3552 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205035.68+355139.7 Mag 11.14 PmRA -6.00
PmDE -12.0 Tycho2 2699-00351-1 Calc delta mag 1.04 Calc coord yes
Tycho2
Tycho2 2699-00351-1 Pflag RAmdeg 312.64926986 DEmdeg 35.86104354
PmRA -2.7 PmDE -11.7 E RAmdeg 56 E DEmdeg 52
E pmRA 3.1 E pmDE 2.9 EpRAm 1987.12 EpDEm 1987.67
Num 3 Q RAmdeg 0.5 Q DEmdeg 0.7 Q pmRA 0.5
Q pmDE 0.7 BTmag 13.811 E BTmag 0.340 VTmag 11.137
E VTmag 0.064 Prox 240 TYC HIP
CCDM RAdeg 312.64927833 DEdeg 35.86107111 EpRA 1990 1.60
EpDE 1990 1.73 E RAdeg 57.8 E DEdeg 53.2 Posflg
Corr 0.1
CCDM
Ccdm 20506+3552 RComp Comp B Note1
Note2 Discov num SEI1273 DRAs -0.16 DDEs -21.0
R dRAs 65 Year 1896 Theta 157 Rho 23.4
Obs 1 Vmag 11.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20467N3530B
HIC