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Doubles in session


Current system
16391+6042
STF 2092
WW Dra


Nearby doubles
13' : 16396+6054
SKF 170

30' : 16388+6111
UC 3198

35' : 16344+6044
LDS2392

35' : 16434+6028
KPP4013

50' : 16434+6120
TDS 831

58' : 16431+5952
STI 806

73' : 16337+6143
TOI1131

76' : 16470+5954
UC 223

80' : 16284+6028
UC 3175

80' : 16282+6041
COP 3

85' : 16354+5922
TDS9985

86' : 16340+6159
KPP2582

99' : 16524+6028
ES 1829

101' : 16285+6149
LDS2729

102' : 16326+5913
TDS9960

103' : 16489+5930
STT 316

105' : 16516+6133
STI 808

105' : 16345+5903
KPP4006

109' : 16491+6203
STI 807AB

113' : 16549+6109
ES 1830

114' : 16239+6020
ES 1828

117' : 16360+6237
MLR 54

118' : 16276+5922
CBL 65

120' : 16232+6017
ES 1827

120' : 16240+6131
STT 312AB
Athebyne

121' : 16542+6001
LDS2402



Selections
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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.

16391+6042 STF 2092 (WW Dra)

 
 
16h 39m 03.98s +60° 41' 58.8" P.A. 5.00 sep 8.2 mag 8.69,9.64 Sp G1IV dist. 118.34 pc (386.03 l.y.)
 
 
Coord 2000 16391+6042 Discov num STF2092 Comp Coord arcsec 2000 16 39 03.98 +60 41 58.8
Date first 1831 Date last 2020 Obs 43
Pa first 6 Pa last 4.5 P.A. Now (θ) 4.5°
Sep first 8.0 Sep last 8.214 Sep. Now (ρ) 8.214"
Mag pri 8.69 Mag sec 9.64 delta mag (ΔM) 0.95 Spectral class G1IV (yellow)
Pri motion ra +023 Sec motion ra +030
Pri motion dec -057 Sec motion dec +033
Notes N V (See Notes, Proper motion indicates physical)
rPM=1.469
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name WW Dra Constellation Draco SAO 17176 HIP 81519
Tycho2 4190-01678-1 Gaia DR2 1624551008683167616 HD 150708 GC 22438
BD BD+60 1691 Distance 118.34 Distance ly 386.03
 
 
WDS 16391+6042 STF 2092 (WW Dra) : NOTES
 
 
discov_num notes refcode
STF2092 A is the Algol-type system WW Dra, P = 4.63d.
 
 
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
16391+6042 STF2092 2006 23 5 8.3 8.69 9.64 G1IV N DV 163903.98+604158.8
16391+6042 STF2092 2010 32 5 7.9 8.69 9.64 G1IV NV 163903.98+604158.8
16391+6042 STF2092 2016 33 7 8.4 8.69 9.64 G1IV NV 163903.98+604158.8
16391+6042 STF2092 2017 35 5 8.2 8.69 9.64 G1IV NV 163903.98+604158.8
16391+6042 STF2092 2018 36 5 7.3 8.69 9.64 G1IV NV 163903.98+604158.8
16391+6042 STF2092 2020 42 5 8.2 8.69 9.64 G1IV NV 163903.98+604158.8

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

 
 
WDS 16391+6042 STF 2092 (WW Dra) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 16391+6042 STF 2092 (WW Dra) : MEASURES
 
 
No records found.

 
 
WDS 16391+6042 (WW Dra) : VIRTUAL EYEPIECE
 
 

16391+6042 STF2092A mag 8.69 Sp G1IV 16391+6042 STF2092B sep 8.2 P.A. 2.20 mag 9.64 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 16391+6042 (WW Dra) : ALADIN DSS IMAGE @ 16h 39m 03.98s +60° 41' 58.8"
 
 
 
 
WDS 16391+6042 STF 2092 (WW Dra) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

16391+6042 STF2092 distance=0' 16396+6054 SKF 170 distance=13' 16388+6111 UC 3198 distance=30' 16344+6044 LDS2392 distance=35' 16434+6028 KPP4013 distance=35' 16434+6120 TDS 831 distance=50' 16431+5952 STI 806 distance=58' 16337+6143 TOI1131 distance=73' 16470+5954 UC 223 distance=76' 16284+6028 UC 3175 distance=80' 16282+6041 COP 3 distance=80' 16354+5922 TDS9985 distance=85' 16340+6159 KPP2582 distance=86' 16524+6028 ES 1829 distance=99' 16285+6149 LDS2729 distance=101' 16326+5913 TDS9960 distance=102' 16489+5930 STT 316 distance=103' 16516+6133 STI 808 distance=105' 16345+5903 KPP4006 distance=105' 16491+6203 STI 807AB distance=109' 16491+6203 FYM 410AC distance=109' 16549+6109 ES 1830 distance=113' 16239+6020 ES 1828 distance=114' 16360+6237 MLR 54 distance=117' 16276+5922 CBL 65 distance=118' 16232+6017 ES 1827 distance=120' 16240+6131 STT 312AB (Athebyne) distance=120' 16240+6131 BU 9008AD (Athebyne) distance=120' 16240+6131 SMY9002AF (Athebyne) distance=120' 16240+6131 STT 312AB,C distance=120' 16542+6001 LDS2402 distance=121' 16484+5903 PRB 7 distance=122' 16556+6102 STI 810 distance=123' 16235+6132 MRI 2 distance=124' 16556+6110 CVR1680 distance=125' 16228+6008 TDS9871 distance=126' 16238+6142 CHR 138Aa,Ab distance=126' 16238+6142 STF2054AB distance=126' 16549+5948 LDS2403 distance=131' 16234+6149 JNN 107 distance=132' 16576+6027 HDS2398 distance=138' 16328+6254 LDS2388 distance=139' 16299+6248 LDS2386 distance=142' 16203+6130 STF2045 distance=145' 16191+6126 BU 41 distance=152' 16576+6201 SLN 35 distance=156' 16588+6151 LDS2405 distance=158' 16425+6322 LDS2395 distance=161' 16309+6318 TDS9943 distance=167' 16497+5816 MLR 430 distance=167' 16331+6324 STI 803 distance=168' 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 16391+6042 STF2092 5 8.2
Show 16396+6054 SKF 170 64 3.2 13
Show 16388+6111 UC 3198 354 7.0 30
Show 16344+6044 LDS2392 67 15.7 35
Show 16434+6028 KPP4013 68 1.6 35
Show 16434+6120 TDS 831 216 1.1 50
Show 16431+5952 STI 806 129 5.5 58
Show 16337+6143 TOI1131 214 0.1 73
Show 16470+5954 UC 223 123 50.3 76
Show 16284+6028 UC 3175 161 8.5 80
Show 16282+6041 COP 3 93 1.4 80
Show 16354+5922 TDS9985 141 0.4 85
Show 16340+6159 KPP2582 291 23.4 86
Show 16524+6028 ES 1829 79 8.3 99
Show 16285+6149 LDS2729 108 105.6 101
Show 16326+5913 TDS9960 115 0.9 102
Show 16489+5930 STT 316 348 46.6 103
Show 16516+6133 STI 808 167 5.4 105
Show 16345+5903 KPP4006 37 9.4 105
Show 16491+6203 STI 807 AB 247 8.9 109
Show 16491+6203 FYM 410 AC 21 17.5 109
Show 16549+6109 ES 1830 123 4.3 113
Show 16239+6020 ES 1828 249 3.3 114
Show 16360+6237 MLR 54 238 1.5 117
Show 16276+5922 CBL 65 322 12.7 118
Show 16232+6017 ES 1827 37 5.1 120
Show Athebyne 16240+6131 STT 312 AB 142 4.7 120
Show Athebyne 16240+6131 BU 9008 AD 87 111.0 120
Show Athebyne 16240+6131 SMY9002 AF 18 362.4 120
Show 16240+6131 STT 312 AB,C 240 565.8 120
Show 16542+6001 LDS2402 113 99.0 121
Show 16484+5903 PRB 7 114 999.9 122
Show 16556+6102 STI 810 124 14.0 123
Show 16235+6132 MRI 2 178 17.7 124
Show 16556+6110 CVR1680 180 3.6 125
Show 16228+6008 TDS9871 119 2.6 126
Show 16238+6142 CHR 138 Aa,Ab 154 0.2 126
Show 16238+6142 STF2054 AB 350 1.0 126
Show 16549+5948 LDS2403 129 4.8 131
Show 16234+6149 JNN 107 212 0.4 132
Show 16576+6027 HDS2398 55 0.5 138
Show 16328+6254 LDS2388 249 20.3 139
Show 16299+6248 LDS2386 164 18.2 142
Show 16203+6130 STF2045 186 2.2 145
Show 16191+6126 BU 41 54 2.4 152
Show 16576+6201 SLN 35 257 25.3 156
Show 16588+6151 LDS2405 234 2.4 158
Show 16425+6322 LDS2395 9 3.9 161
Show 16309+6318 TDS9943 195 0.7 167
Show 16497+5816 MLR 430 159 0.1 167
Show 16331+6324 STI 803 67 11.7 168

 
 
WDS 16391+6042 : COMPONENTS
 
 
  A
B pa=2.2°
sep=8.19"
 
 
16391+6042 A
 
 
Componente originario normalizzato AB Var name WW Dra Coord arcsec 2000 163903.98+604158.8 Mag 8.69
Spectral class G1IV (yellow) PmRA 23.00 PmDE -57.0 SAO 17176
HIP 81519 Tycho2 4190-01678-1 HD 150708 GC 22438
BD BD+60 1691
Tycho2
Tycho2 4190-01678-1 Pflag RAmdeg 249.76657338 DEmdeg 60.69966598
PmRA 22.2 PmDE -57.7 E RAmdeg 8 E DEmdeg 8
E pmRA 1.8 E pmDE 1.7 EpRAm 1991.45 EpDEm 1991.38
Num 7 Q RAmdeg 0.8 Q DEmdeg 1.1 Q pmRA 0.8
Q pmDE 1.2 BTmag 9.515 E BTmag 0.019 VTmag 8.690
E VTmag 0.014 Prox 82 TYC T HIP 81519
CCDM A RAdeg 249.76646972 DEdeg 60.69980028 EpRA 1990 1.71
EpDE 1990 1.67 E RAdeg 8.1 E DEdeg 7.9 Posflg
Corr 0.0
SAO
SAO 17176 DelFlag RA1950 PmRA1950 0.0009
DE1950 PmDE1950 -0.062 Vmag 9.3 SpType G5
Double code Source 70 CatNum 22438 DM BD+60 1691
DMcomp BDsup HD 150708 M HD 0
GC 22438 RA1950rad 4.35618465 DE1950rad 1.06111006 PmRA2000 0.0019
PmDE2000 -0.06
Hipparcos
Catalog H HIP 81519 Proxy H RAhms 16 39 03.95
DEdms +60 41 59.3 Vmag 8.23 VarFlag 3 R Vmag H
RAdeg 249.766 DEdeg 60.6998 AstroRef A Plx 8.67
CCDM 16391+6042 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 5 Rho 8.248 HD 150708 BD BD+60 1691
CD CP Dm number +60 1691 VIred 0.77
SpType G2IV + K0IV R SpType Coord arcsec 2000 163903.95+604159.3
Hipparcos 2
HIP 81519 Sn 15 So 3 Nc 2
RArad 4.3592472576 DErad 1.0594114483 Plx 8.45 PmRA 21.87
PmDE -59.67 E RArad 0.86 E DErad 1.09 E Plx 0.99
E pmRA 1.11 E pmDE 1.37 Hpmag 8.3753 E Hpmag 0.0064
SHp 0.074 VA 1 BV 0.714 E BV 0.019
VI 0.77
CCDM
Ccdm 16391+6042 RComp Comp A Note1
Note2 Discov num DRAs -2.05 DDEs -1.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag Sp G5 PmNote *
PmRA 5 PmDE -66 Dm number +60 1691 Cat1 BD
Name2 +60 1032 Cat2 AGK2/3 HD 150708 M HD
ADS BDS A10152 M ADS BDS N IDS IDS 16377N6054A
HIC 81519
 
 
16391+6042 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 163904.02+604207.0 Mag 9.64 PmRA 30.00
PmDE 33.0 Tycho2 4190-02572-1 Calc delta mag 0.95 Calc coord yes
Tycho2
Tycho2 4190-02572-1 Pflag RAmdeg 249.76698477 DEmdeg 60.70194908
PmRA 22.2 PmDE -55.3 E RAmdeg 15 E DEmdeg 20
E pmRA 2.1 E pmDE 2.1 EpRAm 1991.04 EpDEm 1990.14
Num 5 Q RAmdeg 2.1 Q DEmdeg 1.2 Q pmRA 2.1
Q pmDE 1.2 BTmag 10.325 E BTmag 0.032 VTmag 9.639
E VTmag 0.026 Prox 82 TYC T HIP 81519
CCDM B RAdeg 249.76688194 DEdeg 60.70207889 EpRA 1990 1.80
EpDE 1990 1.58 E RAdeg 14.8 E DEdeg 20.2 Posflg
Corr 0.0
CCDM
Ccdm 16391+6042 RComp Comp B Note1
Note2 Discov num STF2092 DRAs -1.98 DDEs 6.7
R dRAs 91 Year 1831 Theta 005 Rho 8.2
Obs 10 Vmag 8.8 Sp PmNote *
PmRA 5 PmDE -66 Dm number Cat1
Name2 +60 1033 Cat2 AGK2/3 HD M HD
ADS BDS A10152 M ADS BDS N N IDS IDS 16377N6054B
HIC 81519