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Doubles in session


Current system
21218+4309
STT 438
HD 203578


Nearby doubles
9' : 21214+4301
ES 1585AB

20' : 21232+4258
COU2304AB

20' : 21200+4308
LDS2509

20' : 21207+4251
GRV 452

21' : 21199+4307
COU2439

25' : 21202+4325
BRT1148

31' : 21192+4320
TDT2899

31' : 21195+4253
FOX 259AB

34' : 21213+4235
LDS2513

39' : 21219+4347
TDT2924

45' : 21223+4353
TDT2930

45' : 21249+4336
BRT1150

45' : 21178+4302
A 616

46' : 21183+4244
HJ 1634

47' : 21197+4228
ES 1583AB

52' : 21206+4219
WSI 16

52' : 21171+4312
A 401

52' : 21189+4351
COU2438

55' : 21265+4254
TDT2967

56' : 21246+4355
BRT1149

56' : 21206+4215
LDS2511AB

58' : 21273+4315
HJ 1646

59' : 21220+4408
HJ 1639

60' : 21227+4408
COU2303

61' : 21185+4357
TRN 32

61' : 21176+4350
COU2301



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.

21218+4309 STT 438 (HD 203578)

 
 
21h 21m 45.80s +43° 08' 38.1" P.A. 357.00 sep 2.2 mag 8.27,10.30 Sp A0 dist. 289.86 pc (945.52 l.y.)
 
 
Coord 2000 21218+4309 Discov num STT 438 Comp Coord arcsec 2000 21 21 45.80 +43 08 38.1
Date first 1847 Date last 2016 Obs 20
Pa first 356 Pa last 357.1 P.A. Now (θ) 357.1°
Sep first 2.3 Sep last 2.23 Sep. Now (ρ) 2.23"
Mag pri 8.27 Mag sec 10.30 delta mag (ΔM) 2.03 Spectral class A0 (white)
Pri motion ra -011 Sec motion ra
Pri motion dec -026 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 203578 Constellation Cygnus SAO 50758 HIP 105467
Tycho2 3194-00652-1 Gaia DR2 1970643283037167744 HD 203578 BD BD+42 4067
Distance 289.86 Distance ly 945.52
 
 
WDS 21218+4309 STT 438 (HD 203578) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
STTA (O. Struve DD - Appendix list) ...................
Stt1864 Ma - Struve, O. 1864MNRAS..24..149S
Stt1864 MNRAS 24, 149, 1864
Stt1866 orb - Struve, O. .
Stt1866 Bull. Imp. Acad. Sci. St. Petersburg, 1866
Stt1874 orb - Struve, O. .
Stt1874 Compte Rendus 79, 1467, 1874
Stt1875 orb - Struve, O. 1875MNRAS..35..367S
Stt1875 MNRAS 35, 367, 1875
Stt1878 Ma - Struve, O. 1878ObPul...9....1S
Stt1878 Pulkova Observations 9, 1, 1878
Stt1879A Ma - Struve, O. 1879Obs.....2..304G
Stt1879A cited by Gledhill (Obs 2, 304, 1879)
Stt1879B Ma - Struve, O. 1879Obs.....3..245G
Stt1879B cited by Gledhill (Obs 3, 245, 1879)
Stt1879C Ma - Struve, O. 1879Obs.....2..344G
Stt1879C cited by Gledhill (Obs 2, 344, 1879)
Stt1880A Ma - Struve, O. 1880Obs.....2..605H
Stt1880A cited by Hunt (Obs. 3, 605, 1880)
Stt1880B Ma - Struve, O. 1880Obs.....3..535G
Stt1880B cited by Gledhill (Obs 3, 535, 1880)
Stt1880C Ma - Struve, O. 1880MNRAS..40..497B
Stt1880C cited by Burnham (MNRAS 40, 497, 1880)
Stt1884A Ma - Struve, O. 1884AReg...22..216S
Stt1884A cited by Sadler (Astr. Register 22, 216, 1884)
Stt1893a Ma j Struve, O. 1893ObPul..10....1S
Stt1893a Pulkova Obs. Observations 10, 1, 1893
Stt1906A Ma - Struve, O. 1906MmRAS..56....1L
Stt1906A cited by Lewis (MemRAS 56, 1, 1906)
Stt1906B Ma j Struve, O. 1906QB821.B972.....
Stt1906B cited in BDS (Burnham Double Star Cat., 1906)
Stt1908A Ma - Struve, O. 1908MNRAS..68..465B
Stt1908A cited by Barnard (MNRAS 68, 465, 1908)
Stt1913A Ma - Struve, O. 1913QB811.B8.......
Stt1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Stt1914A Ma - Struve, O. 1914AN....198..107R
Stt1914A cited by Rabe (AN 198, 107, 1914)
Stt1932A Ma - Struve, O. 1932QB821.A43......
Stt1932A 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
21218+4309 STT 438 2001 15 357 2.3 8.27 10.30 A0 D 212145.80+430838.1
21218+4309 STT 438 2015 17 0 2.1 8.27 10.30 A0 212145.80+430838.1
21218+4309 STT 438 2016 19 357 2.2 8.27 10.30 A0 212145.80+430838.1

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

 
 
WDS 21218+4309 STT 438 (HD 203578) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21218+4309 STT 438 (HD 203578) : MEASURES
 
 
No records found.

 
 
WDS 21218+4309 (HD 203578) : VIRTUAL EYEPIECE
 
 

21218+4309 STT 438A mag 8.27 Sp A0 21218+4309 STT 438B sep 2.2 P.A. 357.90 mag 10.3 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 21218+4309 (HD 203578) : ALADIN DSS IMAGE @ 21h 21m 45.80s +43° 08' 38.1"
 
 
 
 
WDS 21218+4309 STT 438 (HD 203578) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21218+4309 STT 438 distance=0' 21214+4301 ES 1585AB distance=9' 21214+4301 ES 1585AC distance=9' 21214+4301 ES 1585BC distance=9' 21232+4258 COU2304AB distance=20' 21232+4258 GII 32AB,C distance=20' 21200+4308 LDS2509 distance=20' 21207+4251 GRV 452 distance=20' 21199+4307 COU2439 distance=21' 21202+4325 BRT1148 distance=25' 21192+4320 TDT2899 distance=31' 21195+4253 FOX 259AB distance=31' 21213+4235 LDS2513 distance=34' 21219+4347 TDT2924 distance=39' 21223+4353 TDT2930 distance=45' 21249+4336 BRT1150 distance=45' 21178+4302 A 616 distance=45' 21183+4244 HJ 1634 distance=46' 21197+4228 ES 1583AB distance=47' 21197+4228 ABH 144AD distance=47' 21197+4228 ABH 144AE distance=47' 21197+4228 ABH 144AF distance=47' 21197+4228 ABH 144AG distance=47' 21197+4228 ABH 144AH distance=47' 21197+4228 ABH 144AI distance=47' 21197+4228 ABH 144AJ distance=47' 21197+4228 ABH 144AK distance=47' 21197+4228 ES 1583AC distance=47' 21197+4228 ES 1583BC distance=47' 21206+4219 WSI 16 distance=52' 21171+4312 A 401 distance=52' 21189+4351 COU2438 distance=52' 21265+4254 TDT2967 distance=55' 21246+4355 BRT1149 distance=56' 21206+4215 LDS2511AB distance=56' 21206+4215 LDS2511AC distance=56' 21273+4315 HJ 1646 distance=58' 21220+4408 HJ 1639 distance=59' 21227+4408 COU2303 distance=60' 21185+4357 TRN 32 distance=61' 21176+4350 COU2301 distance=61' 21225+4409 HJ 1640 distance=61' 21208+4206 GRV 453 distance=64' 21160+4313 LDS2503 distance=64' 21202+4207 ES 1584 distance=64' 21262+4351 TDT2963 distance=65' 21264+4349 HO 159 distance=65' 21171+4350 TDT2882 distance=66' 21158+4326 TDT2867 distance=68' 21280+4305 HO 160 distance=69' 21268+4228 A 619 distance=69' 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 21218+4309 STT 438 357 2.2
Show 21214+4301 ES 1585 AB 230 19.2 9
Show 21214+4301 ES 1585 AC 221 26.9 9
Show 21214+4301 ES 1585 BC 202 8.4 9
Show 21232+4258 COU2304 AB 154 0.4 20
Show 21232+4258 GII 32 AB,C 49 5.4 20
Show 21200+4308 LDS2509 176 1.9 20
Show 21207+4251 GRV 452 162 59.2 20
Show 21199+4307 COU2439 266 0.8 21
Show 21202+4325 BRT1148 83 4.1 25
Show 21192+4320 TDT2899 136 0.6 31
Show 21195+4253 FOX 259 AB 307 12.5 31
Show 21213+4235 LDS2513 246 7.1 34
Show 21219+4347 TDT2924 221 1.0 39
Show 21223+4353 TDT2930 356 1.8 45
Show 21249+4336 BRT1150 60 2.9 45
Show 21178+4302 A 616 316 2.7 45
Show 21183+4244 HJ 1634 143 28.9 46
Show 21197+4228 ES 1583 AB 238 13.0 47
Show 21197+4228 ABH 144 AD 112 64.4 47
Show 21197+4228 ABH 144 AE 219 27.2 47
Show 21197+4228 ABH 144 AF 245 62.8 47
Show 21197+4228 ABH 144 AG 238 82.9 47
Show 21197+4228 ABH 144 AH 22 41.7 47
Show 21197+4228 ABH 144 AI 117 69.6 47
Show 21197+4228 ABH 144 AJ 112 81.2 47
Show 21197+4228 ABH 144 AK 98 101.4 47
Show 21197+4228 ES 1583 AC 223 7.6 47
Show 21197+4228 ES 1583 BC 77 6.0 47
Show 21206+4219 WSI 16 149 8.2 52
Show 21171+4312 A 401 318 0.4 52
Show 21189+4351 COU2438 254 1.4 52
Show 21265+4254 TDT2967 4 1.4 55
Show 21246+4355 BRT1149 136 3.2 56
Show 21206+4215 LDS2511 AB 40 3.0 56
Show 21206+4215 LDS2511 AC 197 19.7 56
Show 21273+4315 HJ 1646 115 23.1 58
Show 21220+4408 HJ 1639 102 10.7 59
Show 21227+4408 COU2303 269 1.9 60
Show 21185+4357 TRN 32 81 3.8 61
Show 21176+4350 COU2301 69 0.5 61
Show 21225+4409 HJ 1640 35 7.4 61
Show 21208+4206 GRV 453 27 66.2 64
Show 21160+4313 LDS2503 131 4.0 64
Show 21202+4207 ES 1584 116 5.4 64
Show 21262+4351 TDT2963 267 0.5 65
Show 21264+4349 HO 159 183 5.5 65
Show 21171+4350 TDT2882 334 0.6 66
Show 21158+4326 TDT2867 305 0.6 68
Show 21280+4305 HO 160 182 2.0 69
Show 21268+4228 A 619 61 0.7 69

 
 
WDS 21218+4309 : COMPONENTS
 
 
  A
B pa=357.9°
sep=2.23"
 
 
21218+4309 A
 
 
Componente originario normalizzato AB Name HD 203578 Coord arcsec 2000 212145.80+430838.1 Mag 8.27
Spectral class A0 (white) PmRA -11.00 PmDE -26.0 SAO 50758
HIP 105467 Tycho2 3194-00652-1 HD 203578 BD BD+42 4067
Tycho2
Tycho2 3194-00652-1 Pflag RAmdeg 320.44081387 DEmdeg 43.14392083
PmRA -10.7 PmDE -26.0 E RAmdeg 5 E DEmdeg 5
E pmRA 1.6 E pmDE 1.7 EpRAm 1991.46 EpDEm 1991.54
Num 5 Q RAmdeg 0.8 Q DEmdeg 3.2 Q pmRA 0.8
Q pmDE 3.2 BTmag 8.297 E BTmag 0.016 VTmag 8.267
E VTmag 0.012 Prox 23 TYC T HIP 105467
CCDM A RAdeg 320.44084806 DEdeg 43.14398000 EpRA 1990 1.65
EpDE 1990 1.71 E RAdeg 5.2 E DEdeg 5.0 Posflg D
Corr 0.1
SAO
SAO 50758 DelFlag RA1950 PmRA1950 -0.0024
DE1950 PmDE1950 -0.004 Vmag 8.2 SpType A0
Double code Source 4 CatNum 2013 DM BD+42 4067
DMcomp BDsup HD 203578 M HD 0
GC RA1950rad 5.58446844 DE1950rad 0.74927857 PmRA2000 -0.0021
PmDE2000 -0.008
Hipparcos
Catalog H HIP 105467 Proxy H RAhms 21 21 45.80
DEdms +43 08 38.3 Vmag 8.12 VarFlag R Vmag H
RAdeg 320.441 DEdeg 43.144 AstroRef A Plx 2.75
CCDM 21218+4309 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 357 Rho 2.247 HD 203578 BD BD+42 4067
CD CP Dm number +42 4067 VIred 0.04
SpType A0 R SpType Coord arcsec 2000 212145.80+430838.3
Hipparcos 2
HIP 105467 Sn 15 So 3 Nc 2
RArad 5.5927479187 DErad 0.7530045364 Plx 3.45 PmRA -9.24
PmDE -18.52 E RArad 0.56 E DErad 0.51 E Plx 0.75
E pmRA 0.75 E pmDE 0.64 Hpmag 8.1492 E Hpmag 0.0013
SHp 0.014 VA 0 BV 0.068 E BV 0.015
VI 0.08
CCDM
Ccdm 21218+4309 RComp Comp A Note1
Note2 Discov num DRAs -2.21 DDEs -21.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.0 Sp A0 PmNote *
PmRA -12 PmDE -17 Dm number +42 4067 Cat1 BD
Name2 +42 2013 Cat2 AGK2/3 HD 203578 M HD
ADS BDS A14907 M ADS BDS N IDS IDS 21180N4243A
HIC 105467
 
 
21218+4309 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212145.79+430840.3 Mag 10.3 Calc delta mag 2.03
Calc coord yes
CCDM
Ccdm 21218+4309 RComp Comp B Note1
Note2 Discov num STT 438 DRAs DDEs
R dRAs Year 1847 Theta 355 Rho 2.2
Obs 8 Vmag 10.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14907 M ADS BDS N IDS IDS 21180N4243B
HIC 105467