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Doubles in session


Current system
20452+3531
SEI 1237


Nearby doubles
3' : 20451+3529
COU1809

9' : 20449+3524
SEI1235

11' : 20456+3521
TDT2520

12' : 20462+3533
ES 2252AB

12' : 20448+3542
SEI1234

19' : 20462+3546
SEI1243AB

24' : 20434+3535
ISM 5AB

25' : 20464+3511
COU1810

25' : 20465+3550
ES 2196

25' : 20460+3554
TDT2525

28' : 20471+3545
SEI1247

29' : 20450+3600
ALI 204

32' : 20465+3504
GRV 379

32' : 20460+3601
SEI1242

38' : 20430+3555
HJ 1568

42' : 20481+3554
SEI1252

43' : 20466+3452
SEI1246

43' : 20466+3451
SEI1245

44' : 20435+3609
ES 2195AB

44' : 20422+3510
POP 9

45' : 20485+3550
SEI1254

47' : 20444+3617
GII 53

48' : 20423+3601
TDT2481

48' : 20418+3553
HJ 1560AB

48' : 20479+3456
TDT2545

50' : 20414+3515
COU1964



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

20452+3531 SEI 1237

 
 
20h 45m 15.90s +35° 31' 05.2" P.A. 272.00 sep 26.1 mag 10.88,12.27
 
 
Coord 2000 20452+3531 Discov num SEI1237 Comp Coord arcsec 2000 20 45 15.90 +35 31 05.2
Date first 1896 Date last 2015 Obs 12
Pa first 272 Pa last 271.6 P.A. Now (θ) 271.6°
Sep first 25.6 Sep last 26.071 Sep. Now (ρ) 26.071"
Mag pri 10.88 Mag sec 12.27 delta mag (ΔM) 1.39 Spectral class
Pri motion ra +004 Sec motion ra +001
Pri motion dec +002 Sec motion dec -003
Notes
rPM=1.304
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2695-00867-1 Gaia DR2 1870339686266979328
 
 
WDS 20452+3531 SEI 1237 : 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
20452+3531 SEI1237 1999 5 272 26.0 10.88 12.40 D 204515.90+353105.2
20452+3531 SEI1237 2002 6 272 26.0 10.88 12.40 D 204515.90+353105.2
20452+3531 SEI1237 2010 7 272 26.0 10.88 12.27 204515.90+353105.2
20452+3531 SEI1237 2015 8 272 26.0 10.88 12.27 204515.90+353105.2

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

 
 
WDS 20452+3531 SEI 1237 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20452+3531 SEI 1237 : MEASURES
 
 
No records found.

 
 
WDS 20452+3531 : VIRTUAL EYEPIECE
 
 

20452+3531 SEI1237A mag 10.88 20452+3531 SEI1237B sep 21.2 P.A. 272.00 mag 12.27 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20452+3531 : ALADIN DSS IMAGE @ 20h 45m 15.90s +35° 31' 05.2"
 
 
 
 
WDS 20452+3531 SEI 1237 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20452+3531 SEI1237 distance=0' 20451+3529 COU1809 distance=3' 20449+3524 SEI1235 distance=9' 20456+3521 TDT2520 distance=11' 20462+3533 ES 2252AB distance=12' 20462+3533 LMP 18AB,C distance=12' 20462+3533 LMP 18AB,D distance=12' 20448+3542 SEI1234 distance=12' 20462+3546 SEI1243AB distance=19' 20462+3546 TDT2529Aa,Ab distance=19' 20434+3535 ISM 5AB distance=24' 20434+3535 EVS 44AC distance=24' 20434+3535 EVS 44AD distance=24' 20464+3511 COU1810 distance=25' 20465+3550 ES 2196 distance=25' 20460+3554 TDT2525 distance=25' 20471+3545 SEI1247 distance=28' 20450+3600 ALI 204 distance=29' 20465+3504 GRV 379 distance=32' 20460+3601 SEI1242 distance=32' 20430+3555 HJ 1568 distance=38' 20481+3554 SEI1252 distance=42' 20466+3452 SEI1246 distance=43' 20466+3451 SEI1245 distance=43' 20435+3609 ES 2195AB distance=44' 20435+3609 ES 2195BC distance=44' 20422+3510 POP 9 distance=44' 20485+3550 SEI1254 distance=45' 20444+3617 GII 53 distance=47' 20423+3601 TDT2481 distance=48' 20418+3553 HJ 1560AB distance=48' 20418+3553 HJ 1560AC distance=48' 20479+3456 TDT2545 distance=48' 20414+3515 COU1964 distance=50' 20424+3455 COU1965 distance=50' 20489+3503 SEI1257AB distance=52' 20411+3516 COU1963AB distance=54' 20411+3516 COU1963AB,C distance=54' 20494+3548 SEI1262 distance=54' 20485+3608 SEI1253 distance=55' 20499+3531 SEI1266 distance=58' 20462+3628 TDT2528 distance=58' 20501+3534 TDT2567 distance=59' 20490+3451 SEI1259 distance=61' 20489+3449 SEI1258 distance=61' 20474+3629 MCA 63Aa,Ab distance=64' 20474+3629 STT 413AB distance=64' 20474+3629 S 765AC distance=64' 20474+3629 FYM 126AF distance=64' 20474+3629 FYM 126CD distance=65' 20474+3629 FYM 126CE distance=65' 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 20452+3531 SEI1237 272 26.1
Show 20451+3529 COU1809 101 0.7 3
Show 20449+3524 SEI1235 77 9.4 9
Show 20456+3521 TDT2520 16 0.4 11
Show 20462+3533 ES 2252 AB 294 4.2 12
Show 20462+3533 LMP 18 AB,C 82 26.0 12
Show 20462+3533 LMP 18 AB,D 85 35.5 12
Show 20448+3542 SEI1234 127 19.1 12
Show 20462+3546 SEI1243 AB 203 16.2 19
Show 20462+3546 TDT2529 Aa,Ab 218 0.6 19
Show 20434+3535 ISM 5 AB 145 0.0 24
Show 20434+3535 EVS 44 AC 96 12.9 24
Show 20434+3535 EVS 44 AD 298 14.8 24
Show 20464+3511 COU1810 183 0.2 25
Show 20465+3550 ES 2196 70 5.6 25
Show 20460+3554 TDT2525 70 0.6 25
Show 20471+3545 SEI1247 78 25.6 28
Show 20450+3600 ALI 204 307 11.5 29
Show 20465+3504 GRV 379 162 57.1 32
Show 20460+3601 SEI1242 214 23.6 32
Show 20430+3555 HJ 1568 44 11.2 38
Show 20481+3554 SEI1252 115 17.3 42
Show 20466+3452 SEI1246 58 18.9 43
Show 20466+3451 SEI1245 5 23.1 43
Show 20435+3609 ES 2195 AB 4 20.7 44
Show 20435+3609 ES 2195 BC 91 1.8 44
Show 20422+3510 POP 9 342 4.5 44
Show 20485+3550 SEI1254 20 22.3 45
Show 20444+3617 GII 53 358 0.3 47
Show 20423+3601 TDT2481 43 0.7 48
Show 20418+3553 HJ 1560 AB 248 12.8 48
Show 20418+3553 HJ 1560 AC 74 24.3 48
Show 20479+3456 TDT2545 195 2.5 48
Show 20414+3515 COU1964 130 1.0 50
Show 20424+3455 COU1965 278 0.4 50
Show 20489+3503 SEI1257 AB 215 17.9 52
Show 20411+3516 COU1963 AB 0.2 54
Show 20411+3516 COU1963 AB,C 41 1.8 54
Show 20494+3548 SEI1262 301 6.1 54
Show 20485+3608 SEI1253 83 24.1 55
Show 20499+3531 SEI1266 179 10.5 58
Show 20462+3628 TDT2528 4 1.9 58
Show 20501+3534 TDT2567 125 0.4 59
Show 20490+3451 SEI1259 88 15.5 61
Show 20489+3449 SEI1258 351 25.1 61
Show 20474+3629 MCA 63 Aa,Ab 46 0.1 64
Show 20474+3629 STT 413 AB 1 0.9 64
Show 20474+3629 S 765 AC 106 82.8 64
Show 20474+3629 FYM 126 AF 119 52.0 64
Show 20474+3629 FYM 126 CD 112 9.4 65
Show 20474+3629 FYM 126 CE 207 40.1 65

 
 
WDS 20452+3531 : COMPONENTS
 
 
  A
B pa=272.0°
sep=21.22"
 
 
20452+3531 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204515.90+353105.2 Mag 10.88 PmRA 4.00
PmDE 2.0 Tycho2 2695-00867-1
Tycho2
Tycho2 2695-00867-1 Pflag RAmdeg 311.31624647 DEmdeg 35.51811394
PmRA 3.4 PmDE 4.7 E RAmdeg 27 E DEmdeg 26
E pmRA 1.5 E pmDE 1.6 EpRAm 1984.46 EpDEm 1986.16
Num 7 Q RAmdeg 0.9 Q DEmdeg 0.7 Q pmRA 0.9
Q pmDE 0.8 BTmag 11.139 E BTmag 0.048 VTmag 10.880
E VTmag 0.060 Prox 999 TYC T HIP
CCDM RAdeg 311.31624028 DEdeg 35.51810056 EpRA 1990 1.64
EpDE 1990 1.73 E RAdeg 35.6 E DEdeg 30.8 Posflg
Corr 0.1
 
 
20452+3531 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204514.16+353105.9 Mag 12.27 PmRA 1.00
PmDE -3.0 Calc delta mag 1.39 Calc coord yes