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Doubles in session


Current system
20432+3350
HDS 2949
HD 197549


Nearby doubles
16' : 20420+3349
UC 253

16' : 20424+3405
ES 2309

19' : 20437+3332
GRV 373

19' : 20442+3404
TDT2507

20' : 20446+3401
TDT2511

21' : 20447+3357
ES 2311

21' : 20431+3411
ES 2310

24' : 20448+3401
GRV 376

25' : 20445+3409
HU 690

38' : 20462+3358
STT 594AB
Aljanah

40' : 20429+3430
SEI1225

45' : 20410+3315
GYL 38

48' : 20435+3302
GRV 372

53' : 20407+3431
TDT2466

55' : 20460+3308
GYL 69

56' : 20477+3343
NSN 736

57' : 20470+3318
TDT2535

58' : 20422+3254
RAO 441

59' : 20472+3422
BU 677AB

63' : 20481+3403
LDS1047

64' : 20402+3258
GRV 367

64' : 20486+3424
ES 249

67' : 20482+3326
ES 2377

67' : 20424+3455
COU1965

68' : 20437+3243
ES 2376AB

70' : 20487+3334
ES 9006



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20432+3350 HDS 2949 (HD 197549)

 
 
20h 43m 14.50s +33° 49' 53.6" P.A. 166.00 sep 0.9 mag 7.53,11.43 Sp A0 dist. 497.51 pc (1622.88 l.y.)
 
 
Coord 2000 20432+3350 Discov num HDS2949 Comp Coord arcsec 2000 20 43 14.50 +33 49 53.6
Date first 1991 Date last 2016 Obs 7
Pa first 163 Pa last 166.4 P.A. Now (θ) 166.4°
Sep first 1.0 Sep last 0.944 Sep. Now (ρ) 0.944"
Mag pri 7.53 Mag sec 11.43 delta mag (ΔM) 3.9 Spectral class A0 (white)
Pri motion ra +011 Sec motion ra +015
Pri motion dec +007 Sec motion dec +005
Notes
rPM=0.283 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 197549 Constellation Cygnus SAO 70417 HIP 102261
Tycho2 2695-03999-1 Gaia DR2 1863337652623085696 HD 197549 BD BD+33 4003
Distance 497.51 Distance ly 1622.88
 
 
WDS 20432+3350 HDS 2949 (HD 197549) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20432+3350 HDS2949 1991 2 163 1.0 7.53 11.43 A0 204314.50+334953.6
20432+3350 HDS2949 2009 3 165 1.0 7.53 11.43 A0 204314.50+334953.6
20432+3350 HDS2949 2016 4 166 0.9 7.53 11.43 A0 204314.50+334953.6

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

 
 
WDS 20432+3350 HDS 2949 (HD 197549) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20432+3350 HDS 2949 (HD 197549) : MEASURES
 
 
No records found.

 
 
WDS 20432+3350 (HD 197549) : VIRTUAL EYEPIECE
 
 

20432+3350 HDS2949A mag 7.53 Sp A0 20432+3350 HDS2949B sep 0.9 P.A. 168.60 mag 11.43 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 20432+3350 (HD 197549) : ALADIN DSS IMAGE @ 20h 43m 14.50s +33° 49' 53.6"
 
 
 
 
WDS 20432+3350 HDS 2949 (HD 197549) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20432+3350 HDS2949 distance=0' 20420+3349 UC 253 distance=16' 20424+3405 ES 2309 distance=16' 20437+3332 GRV 373 distance=19' 20442+3404 TDT2507 distance=19' 20446+3401 TDT2511 distance=20' 20447+3357 ES 2311 distance=21' 20431+3411 ES 2310 distance=21' 20448+3401 GRV 376 distance=24' 20445+3409 HU 690 distance=25' 20462+3358 CHR 100Aa,Ab (Aljanah) distance=38' 20462+3358 STT 594AB (Aljanah) distance=38' 20462+3358 BU 676AC (Aljanah) distance=38' 20462+3358 LEP 96AD (Aljanah) distance=38' 20429+3430 SEI1225 distance=40' 20410+3315 GYL 38 distance=45' 20435+3302 GRV 372 distance=48' 20407+3431 TDT2466 distance=53' 20460+3308 GYL 69 distance=55' 20477+3343 NSN 736 distance=56' 20470+3318 TDT2535 distance=57' 20422+3254 RAO 441 distance=58' 20472+3422 BU 677AB distance=59' 20472+3422 BU 677AC distance=59' 20481+3403 LDS1047 distance=63' 20402+3258 GRV 367 distance=64' 20486+3424 ES 249 distance=64' 20482+3326 ES 2377 distance=67' 20424+3455 COU1965 distance=67' 20437+3243 COU1633Aa,Ab distance=68' 20437+3243 ES 2376AB distance=68' 20487+3334 ES 9006 distance=70' 20466+3451 SEI1245 distance=74' 20452+3240 TDT2517 distance=74' 20469+3252 ARG 93 distance=75' 20377+3322 STF2705AB distance=75' 20377+3322 STF2705AC distance=75' 20377+3322 STF2705AD distance=75' 20377+3322 STF2705AE distance=75' 20466+3452 SEI1246 distance=75' 20477+3258 COU1634 distance=77' 20488+3426 SEI1256 distance=78' 20422+3510 POP 9 distance=79' 20493+3314 ES 31AB distance=84' 20493+3314 ES 31AC distance=84' 20369+3321 TDT2423 distance=85' 20465+3504 GRV 379 distance=86' 20493+3430 POP 51 distance=86' 20403+3508 TDT2460 distance=87' 20479+3456 TDT2545 distance=88' 20503+3337 ES 2378 distance=89' 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 20432+3350 HDS2949 166 0.9
Show 20420+3349 UC 253 203 42.7 16
Show 20424+3405 ES 2309 168 4.1 16
Show 20437+3332 GRV 373 178 26.2 19
Show 20442+3404 TDT2507 165 0.9 19
Show 20446+3401 TDT2511 239 0.6 20
Show 20447+3357 ES 2311 44 7.0 21
Show 20431+3411 ES 2310 33 4.1 21
Show 20448+3401 GRV 376 179 65.2 24
Show 20445+3409 HU 690 278 0.5 25
Show Aljanah 20462+3358 CHR 100 Aa,Ab 350 0.0 38
Show Aljanah 20462+3358 STT 594 AB 261 79.2 38
Show Aljanah 20462+3358 BU 676 AC 269 79.0 38
Show Aljanah 20462+3358 LEP 96 AD 271 93.4 38
Show 20429+3430 SEI1225 275 17.0 40
Show 20410+3315 GYL 38 274 17.5 45
Show 20435+3302 GRV 372 109 17.3 48
Show 20407+3431 TDT2466 20 0.6 53
Show 20460+3308 GYL 69 357 26.7 55
Show 20477+3343 NSN 736 354 45.5 56
Show 20470+3318 TDT2535 86 0.7 57
Show 20422+3254 RAO 441 43 3.2 58
Show 20472+3422 BU 677 AB 120 10.0 59
Show 20472+3422 BU 677 AC 211 16.8 59
Show 20481+3403 LDS1047 7 110.2 63
Show 20402+3258 GRV 367 298 38.3 64
Show 20486+3424 ES 249 26 7.7 64
Show 20482+3326 ES 2377 220 4.3 67
Show 20424+3455 COU1965 278 0.4 67
Show 20437+3243 COU1633 Aa,Ab 239 1.9 68
Show 20437+3243 ES 2376 AB 124 7.6 68
Show 20487+3334 ES 9006 93 25.3 70
Show 20466+3451 SEI1245 5 23.1 74
Show 20452+3240 TDT2517 144 1.6 74
Show 20469+3252 ARG 93 87 10.9 75
Show 20377+3322 STF2705 AB 264 3.1 75
Show 20377+3322 STF2705 AC 341 183.4 75
Show 20377+3322 STF2705 AD 3 54.5 75
Show 20377+3322 STF2705 AE 42 74.2 75
Show 20466+3452 SEI1246 58 18.9 75
Show 20477+3258 COU1634 61 0.4 77
Show 20488+3426 SEI1256 279 26.3 78
Show 20422+3510 POP 9 342 4.5 79
Show 20493+3314 ES 31 AB 238 13.8 84
Show 20493+3314 ES 31 AC 143 18.7 84
Show 20369+3321 TDT2423 183 0.5 85
Show 20465+3504 GRV 379 162 57.1 86
Show 20493+3430 POP 51 347 6.6 86
Show 20403+3508 TDT2460 121 2.1 87
Show 20479+3456 TDT2545 195 2.5 88
Show 20503+3337 ES 2378 193 6.2 89

 
 
WDS 20432+3350 : COMPONENTS
 
 
  A
B pa=168.6°
sep=0.94"
 
 
20432+3350 A
 
 
Componente originario normalizzato AB Name HD 197549 Coord arcsec 2000 204314.50+334953.6 Mag 7.53
Spectral class A0 (white) PmRA 11.00 PmDE 7.0 SAO 70417
HIP 102261 Tycho2 2695-03999-1 HD 197549 BD BD+33 4003
Tycho2
Tycho2 2695-03999-1 Pflag RAmdeg 310.81039968 DEmdeg 33.83156729
PmRA 11.3 PmDE 7.0 E RAmdeg 4 E DEmdeg 4
E pmRA 1.6 E pmDE 1.6 EpRAm 1991.51 EpDEm 1991.54
Num 7 Q RAmdeg 1.5 Q DEmdeg 2.0 Q pmRA 1.4
Q pmDE 1.9 BTmag 7.474 E BTmag 0.015 VTmag 7.531
E VTmag 0.010 Prox 10 TYC T HIP 102261
CCDM A RAdeg 310.81036778 DEdeg 33.83155111 EpRA 1990 1.66
EpDE 1990 1.69 E RAdeg 3.9 E DEdeg 3.8 Posflg
Corr 0.3
SAO
SAO 70417 DelFlag RA1950 PmRA1950 0.0012
DE1950 PmDE1950 0.006 Vmag 8 SpType A0
Double code Source 6 CatNum 1988 DM BD+33 4003
DMcomp BDsup HD 197549 M HD 0
GC RA1950rad 5.41594215 DE1950rad 0.5873111 PmRA2000 0.0014
PmDE2000 0.004
Hipparcos
Catalog H HIP 102261 Proxy H RAhms 20 43 14.49
DEdms +33 49 53.6 Vmag 7.51 VarFlag 1 R Vmag H
RAdeg 310.81 DEdeg 33.8315 AstroRef A Plx 2.24
CCDM 20432+3350 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual C M HIP AB
Theta 163 Rho 0.979 HD 197549 BD BD+33 4003
CD CP Dm number +33 4003 VIred -0.01
SpType A0 R SpType Coord arcsec 2000 204314.49+334953.6
Hipparcos 2
HIP 102261 Sn 15 So 3 Nc 2
RArad 5.4246642405 DErad 0.5904719088 Plx 2.01 PmRA 13.77
PmDE 6.05 E RArad 0.4 E DErad 0.43 E Plx 0.62
E pmRA 0.44 E pmDE 0.45 Hpmag 7.5038 E Hpmag 0.0017
SHp 0.018 VA 2 BV -0.033 E BV 0.007
VI -0.01
CCDM
Ccdm 20432+3350 RComp Comp A Note1
Note2 Discov num DRAs 2.49 DDEs -6.4
R dRAs 82 Year Theta Rho
Obs 2 Vmag 7.5 Sp A0 PmNote *
PmRA 15 PmDE 5 Dm number +33 4003 Cat1 BD
Name2 +33 1988 Cat2 AGK2/3 HD 197549 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 102261
 
 
20432+3350 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204314.51+334952.7 Mag 11.43 PmRA 15.00
PmDE 5.0 Calc delta mag 3.9 Calc coord yes
CCDM
Ccdm 20432+3350 RComp Comp B Note1
Note2 Discov num HDS DRAs 2.52 DDEs -7.3
R dRAs 82 Year 1991 Theta 163 Rho 1.0
Obs 1 Vmag 11.4 Sp PmNote *
PmRA 15 PmDE 5 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 102261