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Doubles in session


Current system
21358+3101
STF 2808 AC
HD 205617


Nearby doubles
4' : 21358+3104
HJ 940

19' : 21353+3043
TDT3047

32' : 21334+3058
KU 132AB

37' : 21360+3137
HO 163

39' : 21384+3044
LDS4900

41' : 21389+3058
TDT3081

42' : 21353+3020
MLB 718

46' : 21372+3142
TDT3064

46' : 21348+3016
ES 380AB

47' : 21364+3015
MLB 719

49' : 21355+3012
UC 4502

52' : 21378+3143
ES 2359

53' : 21319+3044
UC 4485

53' : 21319+3121
J 1236

57' : 21332+3015
ES 379

58' : 21362+3003
BU 167

62' : 21396+3136
TDT3088

62' : 21318+3026
TDT3010

64' : 21407+3056
GRV 490

66' : 21348+3204
LSL 1AB

70' : 21409+3122
AG 275

70' : 21324+3156
KPP 835

71' : 21383+2958
HJ 1670

71' : 21395+3009
A 772

71' : 21307+3107
J 2351

72' : 21412+3043
J 3143



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.

21358+3101 STF 2808 AC (HD 205617)

 
 
21h 35m 45.75s +31° 00' 34.9" P.A. 286.00 sep 42.8 mag 8.06,11.07 Sp K1V dist. 279.33 pc (911.17 l.y.)
 
 
Coord 2000 21358+3101 Discov num STF2808 Comp AC Coord arcsec 2000 21 35 45.75 +31 00 34.9
Date first 1879 Date last 2018 Obs 13
Pa first 291 Pa last 286.3 P.A. Now (θ) 286.3°
Sep first 41.3 Sep last 42.83 Sep. Now (ρ) 42.83"
Mag pri 8.06 Mag sec 11.07 delta mag (ΔM) 3.01 Spectral class K1V (yellow-orange)
Pri motion ra +025 Sec motion ra +001
Pri motion dec +011 Sec motion dec +004
Notes U (Proper motion indicates non-physical)
rPM=0.915
This double is not physical.
 
 
21358+3101 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 71494 21 35 46 +31 00 35 HJ 939 AB 2018 10 176 15.6 8.06 12.78 4.72
Show HD 205617 71494 21 35 46 +31 00 35 STF 2808 AC 2018 13 286 42.8 8.06 11.07 3.01 <===
Show 21 35 43 +31 00 48 HJ 939 CD 2018 10 344 15.1 11.07 14.67 3.60
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 205617 Constellation Cygnus SAO 71494 HIP 106622
Tycho2 2704-00745-1 Gaia DR2 1850576858093726464 HD 205617 BD BD+30 4479
Distance 279.33 Distance ly 911.17
 
 
WDS 21358+3101 STF 2808 AC (HD 205617) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma Unpublished, manuscript or reference not found.
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
21358+3101 STF2808 AC 1998 8 287 42.5 8.06 11.07 D 213545.75+310034.9
21358+3101 STF2808 AC 2002 9 287 42.7 8.06 11.07 UD 213545.75+310034.9
21358+3101 STF2808 AC 2014 12 287 42.9 8.06 11.07 K1V U 213545.75+310034.9
21358+3101 STF2808 AC 2018 13 286 42.8 8.06 11.07 K1V U 213545.75+310034.9

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

 
 
WDS 21358+3101 STF 2808 AC (HD 205617) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21358+3101 STF 2808 AC (HD 205617) : MEASURES
 
 
No records found.

 
 
WDS 21358+3101 (HD 205617) : VIRTUAL EYEPIECE
 
 

21358+3101 HJ 939A mag 8.06 Sp K1V 21358+3101 HJ 939B sep 15.6 P.A. 176.40 mag 12.78 21358+3101 HJ 939C sep 42.4 P.A. 287.40 mag 11.07 21358+3101 HJ 939D sep 51.8 P.A. 301.60 mag 14.67 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 21358+3101 (HD 205617) : ALADIN DSS IMAGE @ 21h 35m 45.75s +31° 00' 34.9"
 
 
 
 
WDS 21358+3101 STF 2808 AC (HD 205617) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21358+3101 STF2808AC distance=0' 21358+3101 HJ 939CD distance=1' 21358+3104 HJ 940 distance=4' 21353+3043 TDT3047 distance=19' 21334+3058 COU 732Aa,Ab distance=32' 21334+3058 KU 132AB distance=32' 21360+3137 HO 163 distance=37' 21384+3044 LDS4900 distance=39' 21389+3058 TDT3081 distance=41' 21353+3020 MLB 718 distance=42' 21372+3142 TDT3064 distance=46' 21348+3016 ES 380AB distance=46' 21348+3016 ES 380AC distance=46' 21348+3016 ES 380CD distance=46' 21364+3015 MLB 719 distance=47' 21355+3012 UC 4502 distance=49' 21378+3143 ES 2359 distance=52' 21319+3044 UC 4485 distance=53' 21319+3121 J 1236 distance=53' 21332+3015 ES 379 distance=57' 21362+3003 BU 167 distance=58' 21396+3136 TDT3088 distance=62' 21318+3026 TDT3010 distance=62' 21407+3056 GRV 490 distance=64' 21348+3204 LSL 1CG distance=65' 21348+3204 LSL 1BF distance=66' 21348+3204 LSL 1AB distance=66' 21348+3204 LSL 1AC distance=66' 21348+3204 LSL 1AD distance=66' 21348+3204 LSL 1AE distance=66' 21409+3122 AG 275 distance=70' 21324+3156 KPP 835 distance=70' 21383+2958 HJ 1670 distance=71' 21395+3009 A 772 distance=71' 21307+3107 J 2351 distance=71' 21412+3043 J 3143 distance=72' 21331+2958 LOS 5BC distance=73' 21331+2958 J 3141AB distance=73' 21331+2958 LOS 5AC distance=73' 21301+3050 COU 941 distance=74' 21384+2953 MLB 491 distance=76' 21368+3217 COU1184 distance=78' 21327+2954 HEI 190 distance=79' 21422+3100 OSO 154AB distance=83' 21422+3100 OSO 154AC distance=83' 21422+3100 OSO 154AD distance=83' 21422+3100 OSO 154AE distance=83' 21294+3049 ES 2442 distance=84' 21385+3217 ES 2319 distance=85' 21291+3102 BRT 288 distance=87' 21412+2955 GRV 491 distance=96' 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 21358+3101 HJ 939 AB 176 15.6
Show 21358+3101 STF2808 AC 286 42.8
Show 21358+3101 HJ 939 CD 344 15.1 1
Show 21358+3104 HJ 940 329 21.0 4
Show 21353+3043 TDT3047 19 2.4 19
Show 21334+3058 COU 732 Aa,Ab 265 0.5 32
Show 21334+3058 KU 132 AB 256 53.6 32
Show 21360+3137 HO 163 19 9.0 37
Show 21384+3044 LDS4900 213 17.4 39
Show 21389+3058 TDT3081 114 0.8 41
Show 21353+3020 MLB 718 307 8.1 42
Show 21372+3142 TDT3064 90 0.8 46
Show 21348+3016 ES 380 AB 49 16.2 46
Show 21348+3016 ES 380 AC 106 61.5 46
Show 21348+3016 ES 380 CD 312 2.9 46
Show 21364+3015 MLB 719 136 6.0 47
Show 21355+3012 UC 4502 264 46.1 49
Show 21378+3143 ES 2359 83 2.7 52
Show 21319+3044 UC 4485 24 25.4 53
Show 21319+3121 J 1236 283 2.4 53
Show 21332+3015 ES 379 300 9.0 57
Show 21362+3003 BU 167 89 1.7 58
Show 21396+3136 TDT3088 149 2.9 62
Show 21318+3026 TDT3010 331 0.6 62
Show 21407+3056 GRV 490 328 31.7 64
Show 21348+3204 LSL 1 CG 199 11.5 65
Show 21348+3204 LSL 1 BF 210 18.4 66
Show 21348+3204 LSL 1 AB 82 82.1 66
Show 21348+3204 LSL 1 AC 127 106.1 66
Show 21348+3204 LSL 1 AD 134 21.2 66
Show 21348+3204 LSL 1 AE 331 10.5 66
Show 21409+3122 AG 275 13 10.9 70
Show 21324+3156 KPP 835 347 7.1 70
Show 21383+2958 HJ 1670 78 11.7 71
Show 21395+3009 A 772 112 0.1 71
Show 21307+3107 J 2351 347 4.7 71
Show 21412+3043 J 3143 262 6.6 72
Show 21331+2958 LOS 5 BC 70 4.1 73
Show 21331+2958 J 3141 AB 313 6.8 73
Show 21331+2958 LOS 5 AC 350 6.1 73
Show 21301+3050 COU 941 300 0.1 74
Show 21384+2953 MLB 491 34 4.8 76
Show 21368+3217 COU1184 158 0.2 78
Show 21327+2954 HEI 190 81 1.8 79
Show 21422+3100 OSO 154 AB 25 15.3 83
Show 21422+3100 OSO 154 AC 239 15.8 83
Show 21422+3100 OSO 154 AD 166 16.4 83
Show 21422+3100 OSO 154 AE 108 19.6 83
Show 21294+3049 ES 2442 251 6.7 84
Show 21385+3217 ES 2319 58 2.9 85
Show 21291+3102 BRT 288 96 4.8 87

 
 
WDS 21358+3101 : COMPONENTS
 
 
  A B C
B pa=176.4°
sep=15.58"
 
C pa=287.4°
sep=42.44"
pa=304.3°
sep=50.18"
 
D pa=301.6°
sep=51.80"
pa=313.5°
sep=62.11"
pa=346.0°
sep=14.91"
 
 
21358+3101 A
 
 
Coord arcsec 2000 213545.75+310034.9 Mag 8.06 Spectral class K1V (yellow-orange) PmRA 25.00
PmDE 11.0 SAO 71494 HIP 106622 Tycho2 2704-00745-1
HD 205617 GC 30239 BD BD+30 4479
Tycho2
Tycho2 2704-00745-1 Pflag RAmdeg 323.94064430 DEmdeg 31.00970771
PmRA 24.6 PmDE 9.8 E RAmdeg 6 E DEmdeg 6
E pmRA 0.9 E pmDE 0.9 EpRAm 1990.45 EpDEm 1990.81
Num 14 Q RAmdeg 0.8 Q DEmdeg 1.2 Q pmRA 0.8
Q pmDE 1.2 BTmag 9.713 E BTmag 0.019 VTmag 8.061
E VTmag 0.011 Prox 423 TYC T HIP 106622
CCDM RAdeg 323.94057694 DEdeg 31.00968528 EpRA 1990 1.55
EpDE 1990 1.67 E RAdeg 5.7 E DEdeg 5.6 Posflg
Corr 0.1
SAO
SAO 71494 DelFlag RA1950 PmRA1950 0.0018
DE1950 PmDE1950 0.027 Vmag 7.7 SpType K0
Double code Source 70 CatNum 30239 DM BD+30 4479
DMcomp BDsup HD 205617 M HD 0
GC 30239 RA1950rad 5.64436285 DE1950rad 0.53730911 PmRA2000 0.0019
PmDE2000 0.023
Hipparcos
Catalog H HIP 106622 Proxy RAhms 21 35 45.74
DEdms +31 00 34.9 Vmag 7.91 VarFlag R Vmag H
RAdeg 323.941 DEdeg 31.0097 AstroRef Plx 3.21
CCDM 21358+3101 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 205617 BD BD+30 4479
CD CP Dm number +30 4479 VIred 1.32
SpType K0 R SpType Coord arcsec 2000 213545.74+310034.9
Hipparcos 2
HIP 106622 Sn 5 So 0 Nc 1
RArad 5.6538296098 DErad 0.5412210566 Plx 3.58 PmRA 25.42
PmDE 10.95 E RArad 0.4 E DErad 0.42 E Plx 0.64
E pmRA 0.57 E pmDE 0.5 Hpmag 8.0564 E Hpmag 0.0009
SHp 0.012 VA 0 BV 1.363 E BV 0.015
VI 1.33
CCDM
Ccdm 21358+3101 RComp Comp A Note1
Note2 Discov num DRAs -2.22 DDEs -25.7
R dRAs 65 Year Theta Rho
Obs 4 Vmag 8.0 Sp K0 PmNote *
PmRA 26 PmDE 11 Dm number +30 4479 Cat1 BD
Name2 +30 2381 Cat2 AGK2/3 HD 205617 M HD
ADS BDS A15120 M ADS BDS N IDS IDS 21314N3033A
HIC 106622
 
 
21358+3101 B
 
 
Coord arcsec 2000 213545.83+310019.4 Mag 12.78 PmRA 31.00 PmDE -14.0
Calc delta mag 4.72 Calc coord yes
CCDM
Ccdm 21358+3101 RComp Comp B Note1
Note2 Discov num HJ 939 DRAs -2.18 DDEs -39.8
R dRAs 65 Year 1900 Theta 173 Rho 14.8
Obs 3 Vmag 12.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15120 M ADS BDS N IDS IDS 21314N3033B
HIC
 
 
21358+3101 C
 
 
Coord arcsec 2000 213542.60+310047.6 Coord calc 213542.60+310047.6 Mag 11.07 PmRA 1.00
PmDE 4.0 Tycho2 2704-02679-1 Calc delta mag 3.01
Tycho2
Tycho2 2704-02679-1 Pflag RAmdeg 323.92752555 DEmdeg 31.01323563
PmRA 6.4 PmDE -2.5 E RAmdeg 54 E DEmdeg 47
E pmRA 2.6 E pmDE 2.5 EpRAm 1986.53 EpDEm 1987.71
Num 3 Q RAmdeg 0.8 Q DEmdeg 0.3 Q pmRA 0.8
Q pmDE 0.3 BTmag 12.794 E BTmag 0.196 VTmag 11.066
E VTmag 0.067 Prox 423 TYC T HIP
CCDM RAdeg 323.92750806 DEdeg 31.01324139 EpRA 1990 1.50
EpDE 1990 1.67 E RAdeg 55.6 E DEdeg 48.2 Posflg
Corr 0.1
CCDM
Ccdm 21358+3101 RComp Comp C Note1
Note2 Discov num STF2808 DRAs -5.41 DDEs -12.2
R dRAs 65 Year 1879 Theta 291 Rho 40.7
Obs 5 Vmag 10.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15120 M ADS BDS N N IDS IDS 21314N3033C
HIC
 
 
21358+3101 D
 
 
Coord arcsec 2000 213542.32+310102.1 Mag 14.67 Calc delta mag 6.61 Calc coord yes
CCDM
Ccdm 21358+3101 RComp C Comp D Note1
Note2 Discov num HJ 939 DRAs -5.73 DDEs 2.5
R dRAs 65 Year 1903 Theta 344 Rho 15.3
Obs 1 Vmag 12.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15120 M ADS BDS N IDS IDS 21314N3033D
HIC