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Doubles in session


Current system
18295+2955
STF 2328 AB
HD 170669


Nearby doubles
4' : 18295+2959
KU 118

4' : 18292+2955
STF2327

23' : 18292+2933
HO 434

34' : 18269+2950
HJ 1325

34' : 18290+3029
TDT 901

37' : 18268+3007
TDT 872

58' : 18336+2934
RAO 393

58' : 18328+3033
BU 1253

60' : 18252+3016
TDT 847

60' : 18251+3016
GIC 152

65' : 18314+3055
SLE 186

67' : 18273+2856
HO 433

67' : 18333+3040
SLE 199

74' : 18246+3034
KPP4107

81' : 18280+2837
COU 638

82' : 18310+3115
A 247

84' : 18265+2842
HJ 1324

85' : 18303+3120
LDS4789

85' : 18230+3007
HDS2599

90' : 18270+2832
MLB 648

95' : 18332+2835
MLB 691

98' : 18298+2818
UC 3594

101' : 18257+2828
TDT 858

103' : 18350+2844
STF2344

104' : 18369+3032
DAM 111

105' : 18349+2840
LDS4791



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.

18295+2955 STF 2328 AB (HD 170669)

 
 
18h 29m 27.87s +29° 55' 27.2" P.A. 72.00 sep 3.7 mag 9.00,9.50 Sp A2
 
 
Coord 2000 18295+2955 Discov num STF2328 Comp AB Coord arcsec 2000 18 29 27.87 +29 55 27.2
Date first 1828 Date last 2020 Obs 59
Pa first 84 Pa last 72.3 P.A. Now (θ) 72.3°
Sep first 2.5 Sep last 3.707 Sep. Now (ρ) 3.707"
Mag pri 9.00 Mag sec 9.50 delta mag (ΔM) 0.5 Spectral class A2 (white)
Pri motion ra -004 Sec motion ra -006
Pri motion dec -014 Sec motion dec -014
Notes T (Parallax indicates physical)
rPM=0.131 (< 0.3, Physical double)
This double is physical.
 
 
18295+2955 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 170669 86117 18 29 28 +29 55 27 STF 2328 AB 2020 59 72 3.7 9.00 9.50 0.50 <===
Show 86117 18 29 28 +29 55 27 WAL 91 AC 2017 5 352 53.9 9.00 13.20 4.20
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 170669 Constellation Lyra SAO 86117 Tycho2 2118-01398-1
Gaia DR2 4588261168016752896 HD 170669 GC 25251
 
 
WDS 18295+2955 STF 2328 AB (HD 170669) : 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.
Wal1934 Ma j Wallenquist, A. 1934AnBos...6....3W
Wal1934 Ann. Bosscha Obs. Lembang 6, Pt.2, 1934
Wal1944a Zw - Wallenquist, A. 1954MeUpp...85.....
Wal1944a Medd. Uppsala Obs. #85, 1944
Wal1944a (Visual measures with wedge photometer attached to 14-inch refractor. No dates
Wal1944a given for measures; default date = decade of publication added.)
Wal1944b Zw - Wallenquist, A. 1954MeUpp...87.....
Wal1944b Medd. Uppsala Obs. #87, 1944
Wal1944b (Visual measures with wedge photometer attached to 14-inch refractor. No dates
Wal1944b given for measures; default date = decade of publication added.)
Wal1947 Zw - Wallenquist, A. 1947UppAn...2....2W
Wal1947 Ann. Uppsala Astron. Obs. 2, No.2, 1947
Wal1947 (A catalogue containing results of the two prior series, plus additional measures
Wal1947 with the 14-inch refractor and wedge photometer)
Wal1948 Zw - Wallenquist, A. 1948UppAn...2....3W
Wal1948 Ann. Uppsala Astron Obs. 2, #3, 1948
Wal1948 (Visual measures of southern double stars made with 17-inch refractor of La Plata
Wal1948 and wedge photometer. No dates listed; default date = decade of publication added)
Wal1950 Zd - Wallenquist, A. 1950MeUpp..103.....
Wal1950 Medd. Uppsala Obs. #103, 1950
Wal1954 Zw - Wallenquist, A. 1954UppAn...4Q....W
Wal1954 Ann. Uppsala Astron Obs. 4, #2, 1954
Wal1954 ("General Catalogue of Differences in Magnitude of Double Stars". Weighted mean
Wal1954 values from numerous sources)
Wal1958 Zw - Wallenquist, A. 1958MeUpp..118.....
Wal1958 Medd. Uppsala Obs. #118, 1958
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18295+2955 STF2328 AB 2006 46 73 5.3 9.00 9.50 A2 D 182927.87+295527.2
18295+2955 STF2328 AB 2008 49 71 3.7 9.00 9.50 A2 D 182927.87+295527.2
18295+2955 STF2328 AB 2009 53 72 3.7 9.00 9.50 A2 D 182927.87+295527.2
18295+2955 STF2328 AB 2011 55 71 3.8 9.00 9.50 A2 D 182927.87+295527.2
18295+2955 STF2328 AB 2015 54 72 3.7 9.00 9.50 A2 182927.87+295527.2
18295+2955 STF2328 AB 2018 55 72 3.7 9.00 9.50 A2 182927.87+295527.2
18295+2955 STF2328 AB 2019 56 71 3.6 9.00 9.50 A2 T 182927.87+295527.2
18295+2955 STF2328 AB 2020 57 72 3.7 9.00 9.50 A2 T 182927.87+295527.2

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

 
 
WDS 18295+2955 STF 2328 AB (HD 170669) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18295+2955 STF 2328 AB (HD 170669) : MEASURES
 
 
No records found.

 
 
WDS 18295+2955 (HD 170669) : VIRTUAL EYEPIECE
 
 

18295+2955 STF2328A mag 9 Sp A2 18295+2955 STF2328B sep 3.3 P.A. 69.80 mag 9.5 18295+2955 WAL 91C sep 53.8 P.A. 352.60 mag 13.2 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 18295+2955 (HD 170669) : ALADIN DSS IMAGE @ 18h 29m 27.87s +29° 55' 27.2"
 
 
 
 
WDS 18295+2955 STF 2328 AB (HD 170669) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18295+2955 STF2328AB distance=0' 18295+2959 KU 118 distance=4' 18292+2955 STF2327 distance=4' 18292+2933 HO 434 distance=23' 18269+2950 HJ 1325 distance=34' 18290+3029 TDT 901 distance=34' 18268+3007 TDT 872 distance=37' 18336+2934 RAO 393 distance=58' 18328+3033 BU 1253 distance=58' 18252+3016 TDT 847 distance=60' 18251+3016 GIC 152 distance=60' 18314+3055 SLE 186 distance=65' 18273+2856 HO 433 distance=67' 18333+3040 SLE 199 distance=67' 18246+3034 KPP4107 distance=74' 18280+2837 COU 638 distance=81' 18310+3115 A 247 distance=82' 18265+2842 HJ 1324 distance=84' 18303+3120 LDS4789 distance=85' 18230+3007 HDS2599 distance=85' 18270+2832 MLB 648 distance=90' 18332+2835 MLB 691 distance=95' 18298+2818 UC 3594 distance=98' 18257+2828 TDT 858 distance=101' 18350+2844 STF2344 distance=103' 18369+3032 DAM 111 distance=104' 18349+2840 LDS4791 distance=105' 18369+2915 SLE 98 distance=105' 18274+3137 J 761 distance=105' 18215+3016 UC 3558 distance=105' 18353+2842 OSO 101AB distance=107' 18353+2842 OSO 101AC distance=107' 18353+2842 OSO 101AD distance=107' 18353+2842 OSO 101AE distance=107' 18353+2842 OSO 101AF distance=107' 18322+3136 UC 3602 distance=107' 18227+2849 UC 3566 distance=111' 18330+3136 STF2340AB distance=111' 18330+3136 STF2340AC distance=111' 18330+3136 SLE 196AD distance=111' 18330+3136 STF2340BC distance=111' 18330+3136 SLE 196BD distance=111' 18367+3036 HJ 1330AB distance=112' 18367+3036 DAM 110AC distance=112' 18381+3000 J 1138 distance=112' 18306+2805 ES 476AB distance=112' 18306+2805 ES 476AC distance=112' 18338+2816 MLB 568 distance=115' 18249+2817 RAO 391 distance=116' 18219+3101 HJ 1320 distance=118' 18242+2818 A 244 distance=120' 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 18295+2955 STF2328 AB 72 3.7
Show 18295+2955 WAL 91 AC 352 53.9
Show 18295+2959 KU 118 323 50.4 4
Show 18292+2955 STF2327 314 19.6 4
Show 18292+2933 HO 434 184 18.6 23
Show 18269+2950 HJ 1325 311 6.5 34
Show 18290+3029 TDT 901 45 0.5 34
Show 18268+3007 TDT 872 319 0.6 37
Show 18336+2934 RAO 393 69 1.7 58
Show 18328+3033 BU 1253 157 7.0 58
Show 18252+3016 TDT 847 291 0.5 60
Show 18251+3016 GIC 152 125 26.9 60
Show 18314+3055 SLE 186 106 19.0 65
Show 18273+2856 HO 433 328 9.8 67
Show 18333+3040 SLE 199 319 8.7 67
Show 18246+3034 KPP4107 79 2.2 74
Show 18280+2837 COU 638 136 3.3 81
Show 18310+3115 A 247 57 3.0 82
Show 18265+2842 HJ 1324 14 5.6 84
Show 18303+3120 LDS4789 154 56.3 85
Show 18230+3007 HDS2599 11 0.3 85
Show 18270+2832 MLB 648 22 10.1 90
Show 18332+2835 MLB 691 18 4.3 95
Show 18298+2818 UC 3594 71 13.4 98
Show 18257+2828 TDT 858 57 0.4 101
Show 18350+2844 STF2344 175 1.5 103
Show 18369+3032 DAM 111 286 7.2 104
Show 18349+2840 LDS4791 77 15.6 105
Show 18369+2915 SLE 98 315 11.2 105
Show 18274+3137 J 761 180 3.7 105
Show 18215+3016 UC 3558 268 45.1 105
Show 18353+2842 OSO 101 AB 321 9.7 107
Show 18353+2842 OSO 101 AC 121 11.1 107
Show 18353+2842 OSO 101 AD 132 15.3 107
Show 18353+2842 OSO 101 AE 88 17.8 107
Show 18353+2842 OSO 101 AF 49 24.5 107
Show 18322+3136 UC 3602 320 71.6 107
Show 18227+2849 UC 3566 180 32.0 111
Show 18330+3136 STF2340 AB 104 25.1 111
Show 18330+3136 STF2340 AC 150 223.3 111
Show 18330+3136 SLE 196 AD 106 46.6 111
Show 18330+3136 STF2340 BC 155 206.6 111
Show 18330+3136 SLE 196 BD 126 11.6 111
Show 18367+3036 HJ 1330 AB 224 9.3 112
Show 18367+3036 DAM 110 AC 289 8.1 112
Show 18381+3000 J 1138 300 2.7 112
Show 18306+2805 ES 476 AB 347 2.8 112
Show 18306+2805 ES 476 AC 325 28.9 112
Show 18338+2816 MLB 568 207 3.8 115
Show 18249+2817 RAO 391 313 0.1 116
Show 18219+3101 HJ 1320 159 17.8 118

 
 
WDS 18295+2955 : COMPONENTS
 
 
  A B
B pa=69.8°
sep=3.26"
 
C pa=352.6°
sep=53.75"
pa=349.2°
sep=53.12"
 
 
18295+2955 A
 
 
Name HD 170669 Coord arcsec 2000 182927.87+295527.2 Mag 9 Spectral class A2 (white)
PmRA -4.00 PmDE -14.0 SAO 86117 Tycho2 2118-01398-1
HD 170669 GC 25251 DM BD+29 3271
Tycho2
Tycho2 2118-01398-1 Pflag RAmdeg 277.36612458 DEmdeg 29.92422253
PmRA -3.1 PmDE -13.2 E RAmdeg 12 E DEmdeg 9
E pmRA 3.1 E pmDE 2.7 EpRAm 1991.24 EpDEm 1991.50
Num 4 Q RAmdeg 1.1 Q DEmdeg 0.8 Q pmRA 1.1
Q pmDE 0.8 BTmag 9.276 E BTmag 0.020 VTmag 8.998
E VTmag 0.018 Prox 38 TYC T HIP
CCDM RAdeg 277.36613333 DEdeg 29.92425306 EpRA 1990 1.41
EpDE 1990 1.63 E RAdeg 11.8 E DEdeg 9.4 Posflg
Corr 0.3
SAO
SAO 86117 DelFlag RA1950 PmRA1950 0.0003
DE1950 PmDE1950 -0.01 Vmag 7.4 SpType A2
Double code Source 70 CatNum 25251 DM BD+29 3271
DMcomp BDsup HD 170669 M HD 0
GC 25251 RA1950rad 4.83255413 DE1950rad 0.52168027 PmRA2000 0.0005
PmDE2000 -0.01
CCDM
Ccdm 18295+2955 RComp Comp A Note1
Note2 Discov num DRAs -1.95 DDEs 28.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.2 Sp A2 PmNote *
PmRA 5 PmDE -9 Dm number +29 3271 Cat1 BD
Name2 86117 Cat2 SAO HD 170669 M HD
ADS BDS A11397 M ADS BDS N IDS IDS 18256N2951A
HIC
 
 
18295+2955 B
 
 
Coord arcsec 2000 182928.11+295528.3 Mag 9.5 PmRA -6.00 PmDE -14.0
Tycho2 2118-02629-1 Calc delta mag 0.5 Calc coord yes
Tycho2
Tycho2 2118-02629-1 Pflag RAmdeg 277.36726308 DEmdeg 29.92454688
PmRA -6.0 PmDE -11.4 E RAmdeg 19 E DEmdeg 15
E pmRA 3.1 E pmDE 2.7 EpRAm 1990.95 EpDEm 1991.27
Num 3 Q RAmdeg 1.9 Q DEmdeg 0.9 Q pmRA 1.9
Q pmDE 0.9 BTmag 9.923 E BTmag 0.029 VTmag 9.498
E VTmag 0.026 Prox 38 TYC T HIP
CCDM RAdeg 277.36727972 DEdeg 29.92457333 EpRA 1990 1.43
EpDE 1990 1.66 E RAdeg 18.8 E DEdeg 14.7 Posflg
Corr 0.3
CCDM
Ccdm 18295+2955 RComp Comp B Note1
Note2 Discov num STF2328 DRAs DDEs
R dRAs Year 1830 Theta 073 Rho 3.5
Obs 16 Vmag 9.5 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11397 M ADS BDS N IDS IDS 18256N2951B
HIC
 
 
18295+2955 C
 
 
Coord arcsec 2000 182927.34+295620.5 Mag 13.2 PmRA -4.00 PmDE -25.0
Calc delta mag 4.2 Calc coord yes