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Doubles in session


Current system
21581-0329
STF 2847
HD 208690


Nearby doubles
9' : 21576-0327
LDS4926AB

28' : 21573-0354
SCA 110

39' : 21591-0404
SCA 112

39' : 21598-0300
A 305

46' : 21561-0403
SCA 107AB

55' : 21546-0318
STF2838AB

55' : 21589-0422
LDS4931

59' : 21586-0427
SCA 111

61' : 21546-0300
HDS3116

62' : 21568-0427
CVR 255

65' : 21560-0425
DAM 819

72' : 21571-0439
SCA 109

75' : 22019-0418
SCA 116

78' : 22022-0416
SCA 117

80' : 22033-0344
CVR 928

81' : 21533-0356
J 2360

81' : 21563-0445
SCA 108

81' : 21542-0425
DAM 818

82' : 21531-0355
J 2359

82' : 22035-0341
UC 4636

83' : 22013-0221
CVR 256

84' : 22007-0443
SCA 114

85' : 21542-0429
SCA 106

86' : 21565-0208
CVR 925

88' : 22007-0448
SCA 113

89' : 21524-0310
SCA 104



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.

21581-0329 STF 2847 (HD 208690)

 
 
21h 58m 07.76s -03° 29' 23.3" P.A. 126.00 sep 0.7 mag 7.73,9.59 Sp F0 dist. 140.25 pc (457.5 l.y.)
 
 
Coord 2000 21581-0329 Discov num STF2847 Comp Coord arcsec 2000 21 58 07.76 -03 29 23.3
Date first 1831 Date last 2016 Obs 97
Pa first 117 Pa last 126 P.A. Now (θ) 126°
Sep first 1.2 Sep last 0.696 Sep. Now (ρ) 0.696"
Mag pri 7.73 Mag sec 9.59 delta mag (ΔM) 1.86 Spectral class F0 (yellow-white)
Pri motion ra +004 Sec motion ra +004
Pri motion dec +002 Sec motion dec +002
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 208690 Constellation Aquarius SAO 145777 HIP 108448
Tycho2 5215-00783-1 Gaia DR2 2670299709020589824 HD 208690 GC 30739
BD BD-04 5585 Distance 140.25 Distance ly 457.5
 
 
WDS 21581-0329 STF 2847 (HD 208690) : 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
21581-0329 STF2847 1996 99 125 0.9 7.73 9.59 F0 D 215807.76-032923.3
21581-0329 STF2847 2006 100 126 0.7 7.73 9.59 F0 D 215807.76-032923.3
21581-0329 STF2847 2016 96 126 0.7 7.73 9.59 F0 215807.76-032923.3

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

 
 
WDS 21581-0329 STF 2847 (HD 208690) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21581-0329 STF 2847 (HD 208690) : MEASURES
 
 
No records found.

 
 
WDS 21581-0329 (HD 208690) : VIRTUAL EYEPIECE
 
 

21581-0329 STF2847A mag 7.73 Sp F0 21581-0329 STF2847B sep 0.7 P.A. 126.10 mag 9.59 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21581-0329 (HD 208690) : ALADIN DSS IMAGE @ 21h 58m 07.76s -03° 29' 23.3"
 
 
 
 
WDS 21581-0329 STF 2847 (HD 208690) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21581-0329 STF2847 distance=0' 21576-0327 LDS4926AB distance=9' 21576-0327 ZIE 15Aa,Ab distance=9' 21573-0354 SCA 110 distance=28' 21591-0404 SCA 112 distance=39' 21598-0300 A 305 distance=39' 21561-0403 SCA 107AB distance=46' 21561-0403 LEO 50BC distance=46' 21546-0318 STF2838AB distance=55' 21546-0318 TOK 349AC distance=55' 21589-0422 LDS4931 distance=55' 21586-0427 SCA 111 distance=59' 21546-0300 HDS3116 distance=61' 21568-0427 CVR 255 distance=62' 21560-0425 DAM 819 distance=65' 21571-0439 SCA 109 distance=72' 22019-0418 SCA 116 distance=75' 22022-0416 SCA 117 distance=78' 22033-0344 CVR 928 distance=80' 21533-0356 J 2360 distance=81' 21563-0445 SCA 108 distance=81' 21542-0425 DAM 818 distance=81' 21531-0355 J 2359 distance=82' 22035-0341 UC 4636 distance=82' 22013-0221 CVR 256 distance=83' 22007-0443 SCA 114 distance=84' 21542-0429 SCA 106 distance=85' 21565-0208 CVR 925 distance=86' 22007-0448 SCA 113 distance=88' 21524-0310 SCA 104 distance=89' 22044-0331 LDS4940 distance=94' 22038-0248 HO 469AB distance=95' 22038-0248 HO 469AC distance=95' 21518-0333 RST4699 distance=96' 22016-0452 SCA 115AB distance=98' 22016-0452 SCA 115AC distance=98' 22016-0452 SCA 115BC distance=98' 21590-0507 RST4701 distance=99' 21583-0150 HJ 3074 distance=100' 21515-0358 HJ 946 distance=104' 21514-0358 HJ 945 distance=105' 22051-0313 SCA 118 distance=106' 21530-0442 SCA 105 distance=106' 22022-0203 BAL 268 distance=106' 22012-0507 RST4703 distance=109' 21510-0352 SCA 102 distance=109' 21515-0238 KPP4251 distance=112' 21504-0356 SCA 101 distance=119' 22029-0509 TDT3309 distance=123' 21519-0209 A 182 distance=123' 21509-0224 BAL 267 distance=127' 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 21581-0329 STF2847 126 0.7
Show 21576-0327 LDS4926 AB 128 37.1 9
Show 21576-0327 ZIE 15 Aa,Ab 168 0.3 9
Show 21573-0354 SCA 110 131 65.3 28
Show 21591-0404 SCA 112 78 42.8 39
Show 21598-0300 A 305 229 2.9 39
Show 21561-0403 SCA 107 AB 312 64.7 46
Show 21561-0403 LEO 50 BC 214 1.5 46
Show 21546-0318 STF2838 AB 183 16.0 55
Show 21546-0318 TOK 349 AC 102 143.9 55
Show 21589-0422 LDS4931 344 129.5 55
Show 21586-0427 SCA 111 139 54.4 59
Show 21546-0300 HDS3116 123 0.4 61
Show 21568-0427 CVR 255 310 71.9 62
Show 21560-0425 DAM 819 4 3.4 65
Show 21571-0439 SCA 109 316 24.9 72
Show 22019-0418 SCA 116 359 45.0 75
Show 22022-0416 SCA 117 4 70.8 78
Show 22033-0344 CVR 928 5 12.6 80
Show 21533-0356 J 2360 151 5.9 81
Show 21563-0445 SCA 108 152 71.2 81
Show 21542-0425 DAM 818 313 2.8 81
Show 21531-0355 J 2359 160 5.3 82
Show 22035-0341 UC 4636 299 37.6 82
Show 22013-0221 CVR 256 299 12.7 83
Show 22007-0443 SCA 114 345 76.1 84
Show 21542-0429 SCA 106 346 41.7 85
Show 21565-0208 CVR 925 78 8.1 86
Show 22007-0448 SCA 113 279 16.3 88
Show 21524-0310 SCA 104 116 63.3 89
Show 22044-0331 LDS4940 192 11.4 94
Show 22038-0248 HO 469 AB 51 0.4 95
Show 22038-0248 HO 469 AC 125 55.0 95
Show 21518-0333 RST4699 260 0.7 96
Show 22016-0452 SCA 115 AB 229 76.8 98
Show 22016-0452 SCA 115 AC 359 95.5 98
Show 22016-0452 SCA 115 BC 21 156.5 98
Show 21590-0507 RST4701 145 1.8 99
Show 21583-0150 HJ 3074 297 2.2 100
Show 21515-0358 HJ 946 243 22.1 104
Show 21514-0358 HJ 945 315 10.9 105
Show 22051-0313 SCA 118 115 51.1 106
Show 21530-0442 SCA 105 191 33.8 106
Show 22022-0203 BAL 268 265 7.9 106
Show 22012-0507 RST4703 93 0.3 109
Show 21510-0352 SCA 102 338 50.5 109
Show 21515-0238 KPP4251 255 1.4 112
Show 21504-0356 SCA 101 111 105.7 119
Show 22029-0509 TDT3309 251 0.5 123
Show 21519-0209 A 182 245 1.3 123
Show 21509-0224 BAL 267 210 11.5 127

 
 
WDS 21581-0329 : COMPONENTS
 
 
  A
B pa=126.1°
sep=0.70"
 
 
21581-0329 A
 
 
Componente originario normalizzato AB Name HD 208690 Coord arcsec 2000 215807.76-032923.3 Mag 7.73
Spectral class F0 (yellow-white) PmRA 4.00 PmDE 2.0 SAO 145777
HIP 108448 Tycho2 5215-00783-1 HD 208690 GC 30739
BD BD-04 5585
Tycho2
Tycho2 5215-00783-1 Pflag P RAmdeg 329.53232682 DEmdeg -3.48981474
PmRA 3.9 PmDE 2.4 E RAmdeg 5 E DEmdeg 7
E pmRA 2.2 E pmDE 2.2 EpRAm 1991.78 EpDEm 1991.55
Num 5 Q RAmdeg 2.4 Q DEmdeg 1.4 Q pmRA 2.4
Q pmDE 1.5 BTmag 8.109 E BTmag 0.016 VTmag 7.726
E VTmag 0.012 Prox 8 TYC T HIP 108448
CCDM B RAdeg 329.53229667 DEdeg -3.48980639 EpRA 1990 1.85
EpDE 1990 1.68 E RAdeg 5.0 E DEdeg 6.9 Posflg D
Corr 0.0
SAO
SAO 145777 DelFlag RA1950 PmRA1950 0.001
DE1950 PmDE1950 0.029 Vmag 7.8 SpType F0
Double code Source 70 CatNum 30739 DM BD-04 5585
DMcomp BDsup HD 208690 M HD 0
GC 30739 RA1950rad 5.74008244 DE1950rad -0.06507762 PmRA2000 0.0012
PmDE2000 0.025
Hipparcos
Catalog H HIP 108448 Proxy H RAhms 21 58 07.78
DEdms -03 29 23.6 Vmag 7.42 VarFlag R Vmag H
RAdeg 329.532 DEdeg -3.48988 AstroRef A Plx 8.47
CCDM 21581-0329 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 305 Rho 0.854 HD 208690 BD BD-04 5585
CD CP Dm number -04 5585 VIred 0.31
SpType F0 R SpType Coord arcsec 2000 215807.78-032923.6
Hipparcos 2
HIP 108448 Sn 15 So 3 Nc 2
RArad 5.7514253523 DErad -0.0609099372 Plx 7.13 PmRA 9.27
PmDE 4.84 E RArad 0.81 E DErad 0.5 E Plx 0.9
E pmRA 1.08 E pmDE 0.65 Hpmag 7.5051 E Hpmag 0.0011
SHp 0.01 VA 0 BV 0.331 E BV 0.015
VI 0.39
CCDM
Ccdm 21581-0329 RComp Comp A Note1
Note2 Discov num DRAs 1.77 DDEs -21.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.4 Sp F0 PmNote *
PmRA 15 PmDE 28 Dm number -04 5585 Cat1 BD
Name2 145777 Cat2 SAO HD 208690 M HD
ADS BDS A15494 M ADS BDS N IDS IDS 21529S0358A
HIC 108448
 
 
21581-0329 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 215807.80-032923.7 Mag 9.59 PmRA 4.00
PmDE 2.0 Tycho2 5215-00783-2 Calc delta mag 1.86 Calc coord yes
Tycho2
Tycho2 5215-00783-2 Pflag P RAmdeg 329.53232682 DEmdeg -3.48981474
PmRA 3.9 PmDE 2.4 E RAmdeg 5 E DEmdeg 7
E pmRA 2.2 E pmDE 2.2 EpRAm 1991.78 EpDEm 1991.55
Num 5 Q RAmdeg 2.4 Q DEmdeg 1.4 Q pmRA 2.4
Q pmDE 1.5 BTmag 9.732 E BTmag 0.028 VTmag 9.586
E VTmag 0.031 Prox 8 TYC T HIP 108448
CCDM A RAdeg 329.53248833 DEdeg -3.48992722 EpRA 1990 1.85
EpDE 1990 1.61 E RAdeg 9.9 E DEdeg 16.0 Posflg D
Corr 0.1
CCDM
Ccdm 21581-0329 RComp Comp B Note1
Note2 Discov num STF2847 DRAs DDEs
R dRAs Year 1959 Theta 309 Rho 0.9
Obs 99 Vmag 8.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15494 M ADS BDS N IDS IDS 21529S0358B
HIC 108448