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Current system
21318+3349
STF 2802
HD 205052


Nearby doubles
5' : 21322+3349
HEI 882

11' : 21322+3341
ES 2383

11' : 21318+3338
KUI 124

16' : 21326+3401
KPP1585

24' : 21321+3412
HO 603AB

25' : 21302+3404
HJ 1652

33' : 21336+3325
TOB 222AB

36' : 21291+3357
ES 2263

37' : 21334+3419
TDT3029

46' : 21282+3355
TDT2982

47' : 21317+3302
GYL 63

47' : 21350+3324
TDT3042

52' : 21308+3440
SEI1522

57' : 21295+3438
TDT2993

59' : 21348+3304
GYL 61

59' : 21308+3446
COU1479

60' : 21360+3319
HJ 1664

60' : 21320+3448
COU1480

60' : 21352+3431
TDT3044

60' : 21358+3423
GYL 62

61' : 21271+3402
ES 2262

62' : 21304+3250
ES 2318

64' : 21268+3337
ES 2382

67' : 21267+3329
TDT2973

68' : 21286+3255
TDT2984

69' : 21267+3413
ES 2261



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.

21318+3349 STF 2802 (HD 205052)

 
 
21h 31m 48.94s +33° 48' 56.2" P.A. 9.00 sep 3.9 mag 8.60,8.70 Sp A5 dist. 214.13 pc (698.49 l.y.)
 
 
Coord 2000 21318+3349 Discov num STF2802 Comp Coord arcsec 2000 21 31 48.94 +33 48 56.2
Date first 1825 Date last 2016 Obs 90
Pa first 11 Pa last 8.9 P.A. Now (θ) 8.9°
Sep first 4.3 Sep last 3.866 Sep. Now (ρ) 3.866"
Mag pri 8.60 Mag sec 8.70 delta mag (ΔM) 0.1 Spectral class A5 (white)
Pri motion ra -006 Sec motion ra -001
Pri motion dec -026 Sec motion dec -002
Notes
rPM=0.919
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 205052 Constellation Cygnus SAO 71430 HIP 106303
Tycho2 2712-02608-1 Gaia DR2 1950349974874192384 HD 205052 GC 30154
BD BD+33 4285 Distance 214.13 Distance ly 698.49
 
 
WDS 21318+3349 STF 2802 (HD 205052) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
STFA (F. Struve DD - Appendix list #1) ...................
STFB (F. Struve DD - Appendix list #2) ...................
StF1833A Ma - Struve, F.G.W. 1833MmRAS...5...13H
StF1833A +Mc cited by Herschel (MemRAS 5, 13, 1833)
StF1833B Ma - Struve, F.G.W. 1833AN.....10..389B
StF1833B cited by Bessel (AN 10, 389, 1833)
StF1837 Ma - Struve, F.G.W. 1837AN.....14...249
StF1837 Stellarum duplicium et multiplicium mensurae micrometricae...
StF1837 (Dorpat, Academiae scientiarum caesareae petropolitaneifique), 1837
StF1844A Ma - Struve, F.G.W. 1844QB43.S66.......
StF1844A cited by Smyth (Cycle of Celestial Objects 2, 1844)
StF1852A Ma - Struve, F.G.W. .
StF1852A cited by Bishop (Bishop Obs. Astron. Observations 1852)
StF1865A Ma - Struve, F.G.W. 1865AN.....64...81E
StF1865A cited by Engelmann (AN 64, 81, #1518, 1865)
StF1875A Ma - Struve, F.G.W. 1875AN.....85..323D
StF1875A cited by Doberck, 1875 (see Dob1875b,f,g,h)
StF1878 Ma - Struve, F.G.W. .
StF1878 Pulkova Observations 9, 1878
StF1878B Ma - Struve, F.G.W. 1878Obs.....2..239G
StF1878B cited by Gledhill (Obs 2, 239, 1878)
StF1880A Ma - Struve, F.G.W. 1880Obs.....3..535G
StF1880A cited by Gledhill (Obs 3, 535, 1880)
StF1906A Ma - Struve, F.G.W. 1906QB821.B972.....
StF1906A cited in BDS (Burnham Double Star Cat.), 1906
StF1906B Ma - Struve, F.G.W. 1906MmRAS..56....1L
StF1906B cited by Lewis (MemRAS 56, 1, 1906)
StF1922A Ma - Struve, F.G.W. 1922AN....216...49R
StF1922A cited by Rabe (AN 216, 49, 1922)
StF1932A Ma - Struve, F.G.W. 1932QB821.A43......
StF1932A cited in ADS (Aitken Double Star Cat.), 1932
StF2002 - - Weis, J.
StF2002 F. G. W. Struve's double stars : the Dorpat catalogue; the Pulkovo catalogue
StF2002 USNO Library : QB 821 .S8 W49 2002
StF2022 - - email note from Jan Weis: 6 July 2022
StF9999 Ma - Struve, F.G.W. ...................
StF9999 Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21318+3349 STF2802 2007 81 9 4.0 8.60 8.70 A5 D 213148.94+334856.2
21318+3349 STF2802 2009 86 10 3.8 8.60 8.70 A5 D 213148.94+334856.2
21318+3349 STF2802 2010 87 10 3.8 8.60 8.70 A5 D 213148.94+334856.2
21318+3349 STF2802 2012 87 9 3.7 8.60 8.70 A5 D 213148.94+334856.2
21318+3349 STF2802 2016 88 10 3.9 8.60 8.70 A5 213148.94+334856.2

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

 
 
WDS 21318+3349 STF 2802 (HD 205052) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21318+3349 STF 2802 (HD 205052) : MEASURES
 
 
No records found.

 
 
WDS 21318+3349 (HD 205052) : VIRTUAL EYEPIECE
 
 

21318+3349 STF2802A mag 8.6 Sp A5 21318+3349 STF2802B sep 3.9 P.A. 7.40 mag 8.7 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 21318+3349 (HD 205052) : ALADIN DSS IMAGE @ 21h 31m 48.94s +33° 48' 56.2"
 
 
 
 
WDS 21318+3349 STF 2802 (HD 205052) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21318+3349 STF2802 distance=0' 21322+3349 HEI 882 distance=5' 21322+3341 ES 2383 distance=11' 21318+3338 KUI 124 distance=11' 21326+3401 KPP1585 distance=16' 21321+3412 HO 603BC distance=23' 21321+3412 HO 603AB distance=24' 21302+3404 HJ 1652 distance=25' 21336+3325 TOB 222AB distance=33' 21336+3325 TOB 222AC distance=33' 21336+3325 TOB 222AD distance=33' 21336+3325 GYL 59BD distance=33' 21291+3357 ES 2263 distance=36' 21334+3419 TDT3029 distance=37' 21282+3355 TDT2982 distance=46' 21317+3302 GYL 63 distance=47' 21350+3324 TDT3042 distance=47' 21308+3440 SEI1522 distance=52' 21295+3438 TDT2993 distance=57' 21348+3304 GYL 61 distance=59' 21308+3446 COU1479 distance=59' 21360+3319 HJ 1664 distance=60' 21320+3448 COU1480 distance=60' 21352+3431 TDT3044 distance=60' 21358+3423 GYL 62 distance=60' 21271+3402 ES 2262 distance=61' 21304+3250 ES 2318 distance=62' 21268+3337 ES 2382 distance=64' 21267+3329 TDT2973 distance=67' 21286+3255 TDT2984 distance=68' 21267+3413 ES 2261 distance=69' 21279+3439 TDT2980 distance=70' 21272+3428 TDT2975 distance=71' 21262+3339 TDT2964 distance=71' 21284+3447 COU1638 distance=73' 21265+3315 HJ 935BC distance=74' 21356+3446 COU1481 distance=74' 21265+3315 HJ 935AB distance=74' 21378+3337 KPP3423 distance=77' 21304+3504 HLD 45 distance=77' 21341+3237 GYL 60 distance=78' 21258+3329 GYL 56 distance=78' 21267+3438 SEI1515 distance=81' 21257+3422 GRV 465 distance=82' 21349+3505 GRV 478 distance=87' 21391+3356 COU1185AB distance=92' 21391+3356 WSI 120Ba,Bb distance=92' 21262+3249 GRV 467 distance=92' 21290+3224 ES 378AB distance=93' 21290+3224 WAL 139AC distance=93' 21299+3519 TDT2996 distance=93' 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 21318+3349 STF2802 9 3.9
Show 21322+3349 HEI 882 182 2.0 5
Show 21322+3341 ES 2383 44 5.2 11
Show 21318+3338 KUI 124 143 4.2 11
Show 21326+3401 KPP1585 342 12.0 16
Show 21321+3412 HO 603 BC 276 3.6 23
Show 21321+3412 HO 603 AB 251 80.6 24
Show 21302+3404 HJ 1652 26 15.4 25
Show 21336+3325 TOB 222 AB 119 20.8 33
Show 21336+3325 TOB 222 AC 335 22.1 33
Show 21336+3325 TOB 222 AD 68 26.4 33
Show 21336+3325 GYL 59 BD 17 21.0 33
Show 21291+3357 ES 2263 28 2.8 36
Show 21334+3419 TDT3029 133 2.3 37
Show 21282+3355 TDT2982 358 1.8 46
Show 21317+3302 GYL 63 306 15.7 47
Show 21350+3324 TDT3042 53 1.0 47
Show 21308+3440 SEI1522 180 23.7 52
Show 21295+3438 TDT2993 246 0.5 57
Show 21348+3304 GYL 61 188 47.6 59
Show 21308+3446 COU1479 143 0.7 59
Show 21360+3319 HJ 1664 83 9.4 60
Show 21320+3448 COU1480 204 1.7 60
Show 21352+3431 TDT3044 63 0.6 60
Show 21358+3423 GYL 62 175 58.7 60
Show 21271+3402 ES 2262 74 1.3 61
Show 21304+3250 ES 2318 78 3.7 62
Show 21268+3337 ES 2382 257 7.7 64
Show 21267+3329 TDT2973 330 0.5 67
Show 21286+3255 TDT2984 38 0.5 68
Show 21267+3413 ES 2261 155 4.1 69
Show 21279+3439 TDT2980 235 2.3 70
Show 21272+3428 TDT2975 259 2.1 71
Show 21262+3339 TDT2964 258 0.4 71
Show 21284+3447 COU1638 226 1.3 73
Show 21265+3315 HJ 935 BC 52 1.7 74
Show 21356+3446 COU1481 178 0.5 74
Show 21265+3315 HJ 935 AB 16 12.9 74
Show 21378+3337 KPP3423 18 9.9 77
Show 21304+3504 HLD 45 198 1.3 77
Show 21341+3237 GYL 60 61 50.1 78
Show 21258+3329 GYL 56 3 16.3 78
Show 21267+3438 SEI1515 43 10.6 81
Show 21257+3422 GRV 465 6 51.1 82
Show 21349+3505 GRV 478 134 28.6 87
Show 21391+3356 COU1185 AB 55 1.4 92
Show 21391+3356 WSI 120 Ba,Bb 19 0.2 92
Show 21262+3249 GRV 467 338 60.2 92
Show 21290+3224 ES 378 AB 203 9.5 93
Show 21290+3224 WAL 139 AC 251 41.6 93
Show 21299+3519 TDT2996 122 1.3 93

 
 
WDS 21318+3349 : COMPONENTS
 
 
  A
B pa=7.4°
sep=3.85"
 
 
21318+3349 A
 
 
Componente originario normalizzato AB Name HD 205052 Coord arcsec 2000 213148.94+334856.2 Mag 8.6
Spectral class A5 (white) PmRA -6.00 PmDE -26.0 SAO 71430
HIP 106303 Tycho2 2712-02608-1 HD 205052 GC 30154
BD BD+33 4285
Tycho2
Tycho2 2712-02608-1 Pflag RAmdeg 322.95390009 DEmdeg 33.81560616
PmRA -2.5 PmDE -5.5 E RAmdeg 6 E DEmdeg 7
E pmRA 2.2 E pmDE 2.3 EpRAm 1991.61 EpDEm 1991.27
Num 4 Q RAmdeg 1.7 Q DEmdeg 0.9 Q pmRA 1.6
Q pmDE 0.9 BTmag 8.853 E BTmag 0.016 VTmag 8.599
E VTmag 0.013 Prox 39 TYC T HIP 106303
CCDM A RAdeg 322.95390722 DEdeg 33.81561917 EpRA 1990 1.72
EpDE 1990 1.41 E RAdeg 6.0 E DEdeg 7.4 Posflg
Corr 0.1
SAO
SAO 71430 DelFlag RA1950 PmRA1950 0.0002
DE1950 PmDE1950 0.021 Vmag 7.7 SpType A5
Double code Source 70 CatNum 30154 DM BD+33 4285
DMcomp BDsup HD 205052 M HD 0
GC 30154 RA1950rad 5.62739092 DE1950rad 0.58634496 PmRA2000 0.0004
PmDE2000 0.018
Hipparcos
Catalog H HIP 106303 Proxy H RAhms 21 31 48.94
DEdms +33 48 56.3 Vmag 7.8 VarFlag R Vmag G
RAdeg 322.954 DEdeg 33.8156 AstroRef A Plx 4.63
CCDM 21318+3349 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 9 Rho 3.827 HD 205052 BD BD+33 4285
CD CP Dm number +33 4285 VIred 0.31
SpType A5 R SpType Coord arcsec 2000 213148.94+334856.3
Hipparcos 2
HIP 106303 Sn 15 So 3 Nc 2
RArad 5.6366090132 DErad 0.5901940455 Plx 4.67 PmRA -0.68
PmDE -3.02 E RArad 0.48 E DErad 0.62 E Plx 0.99
E pmRA 0.52 E pmDE 0.61 Hpmag 7.8562 E Hpmag 0.0011
SHp 0.015 VA 0 BV 0.273 E BV 0.015
VI 0.31
CCDM
Ccdm 21318+3349 RComp Comp A Note1
Note2 Discov num DRAs 0.95 DDEs 0.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.5 Sp A5 PmNote *
PmRA 3 PmDE 21 Dm number +33 4285 Cat1 BD
Name2 71430 Cat2 SAO HD 205052 M HD
ADS BDS A15060 M ADS BDS N IDS IDS 21276N3322A
HIC 106303
 
 
21318+3349 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 213148.98+334900.0 Mag 8.7 PmRA -1.00
PmDE -2.0 HIP 106303 Tycho2 2712-02608-2 Calc delta mag 0.1
Calc coord yes
Tycho2
Tycho2 2712-02608-2 Pflag RAmdeg 322.95411568 DEmdeg 33.81667530
PmRA 1.0 PmDE -2.3 E RAmdeg 6 E DEmdeg 8
E pmRA 3.7 E pmDE 3.6 EpRAm 1991.70 EpDEm 1991.38
Num 2 Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 8.953 E BTmag 0.017 VTmag 8.702
E VTmag 0.014 Prox 39 TYC T HIP 106303
CCDM B RAdeg 322.95411306 DEdeg 33.81668083 EpRA 1990 1.73
EpDE 1990 1.44 E RAdeg 6.4 E DEdeg 8.0 Posflg
Corr 0.0
Hipparcos
Catalog H HIP 106303 Proxy H RAhms 21 31 48.94
DEdms +33 48 56.3 Vmag 7.8 VarFlag R Vmag G
RAdeg 322.954 DEdeg 33.8156 AstroRef A Plx 4.63
CCDM 21318+3349 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 9 Rho 3.827 HD 205052 BD BD+33 4285
CD CP Dm number +33 4285 VIred 0.31
SpType A5 R SpType Coord arcsec 2000 213148.94+334856.3
Hipparcos 2
HIP 106303 Sn 15 So 3 Nc 2
RArad 5.6366090132 DErad 0.5901940455 Plx 4.67 PmRA -0.68
PmDE -3.02 E RArad 0.48 E DErad 0.62 E Plx 0.99
E pmRA 0.52 E pmDE 0.61 Hpmag 7.8562 E Hpmag 0.0011
SHp 0.015 VA 0 BV 0.273 E BV 0.015
VI 0.31
CCDM
Ccdm 21318+3349 RComp Comp B Note1
Note2 Discov num STF2802 DRAs DDEs
R dRAs Year 1830 Theta 009 Rho 3.8
Obs 99 Vmag 8.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15060 M ADS BDS N IDS IDS 21276N3322B
HIC 106303