18455+2815 STF 2381 (HD 173702)

 
 
18h 45m 30.77s +28° 15' 24.3" P.A. 122.00 sep 8.9 mag 8.27,10.36 Sp G8III/IV dist. 259.74 pc (847.27 l.y.)
 
 
Coord 2000 18455+2815 Discov num STF2381 Comp Coord arcsec 2000 18 45 30.77 +28 15 24.3
Date first 1830 Date last 2018 Obs 27
Pa first 123 Pa last 122.4 P.A. Now (θ) 122.4°
Sep first 8.5 Sep last 8.919 Sep. Now (ρ) 8.919"
Mag pri 8.27 Mag sec 10.36 delta mag (ΔM) 2.09 Spectral class G8III/IV (yellow)
Pri motion ra +016 Sec motion ra +017
Pri motion dec +010 Sec motion dec +007
Notes
rPM=0.168 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 173702 Constellation Lyra SAO 86407 HIP 92031
Tycho2 2120-01126-1 Gaia DR2 4539184771447684992 HD 173702 GC 25699
ADS 11657 BD BD+28 3073 Distance 259.74 Distance ly 847.27
 
 
WDS 18455+2815 STF 2381 (HD 173702) : 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
18455+2815 STF2381 2008 19 122 8.5 8.27 10.36 G8III/IV D 184530.77+281524.3
18455+2815 STF2381 2015 22 122 8.6 8.27 10.36 G8III/IV 184530.77+281524.3
18455+2815 STF2381 2018 26 122 8.9 8.27 10.36 G8III/IV 184530.77+281524.3

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

 
 
WDS 18455+2815 STF 2381 (HD 173702) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18455+2815 STF 2381 (HD 173702) : MEASURES
 
 
No records found.

 
 
WDS 18455+2815 (HD 173702) : VIRTUAL EYEPIECE
 
 

18455+2815 STF2381A mag 8.27 Sp G8III/IV 18455+2815 STF2381B sep 8.2 P.A. 125.80 mag 10.36 virtual eyepiece
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Radius:
Components only
 
 
WDS 18455+2815 (HD 173702) : ALADIN DSS IMAGE @ 18h 45m 30.77s +28° 15' 24.3"
 
 
 
 
WDS 18455+2815 STF 2381 (HD 173702) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18455+2815  STF2381 distance=0' 18464+2815  TDT1047 distance=12' 18446+2819  SLE 365 distance=13' 18456+2759  TDT1037 distance=17' 18473+2825  HJ 1347AB distance=26' 18473+2825  HJ 1347AC distance=26' 18461+2734  SLE 366 distance=42' 18435+2743  STF2374AB distance=43' 18435+2743  STF2374AC distance=43' 18446+2727  TVB   8 distance=51' 18441+2728  RAO 397 distance=51' 18421+2753  TDT1009 distance=52' 18491+2834  J  1208 distance=53' 18476+2903  DAM 679 distance=55' 18414+2820  TDT 999 distance=55' 18460+2720  HJ 1343 distance=56' 18422+2851  LDS4795 distance=56' 18459+2719  PHL9001 distance=57' 18422+2739  STF2371 distance=58' 18443+2720  TDS 941 distance=59' 18475+2724  BRT  35 distance=59' 18411+2808  SLE 104 distance=59' 18499+2806  OSO 104AB distance=60' 18499+2806  OSO 104AD distance=60' 18499+2806  OSO 104AE distance=60' 18499+2806  OSO 104AF distance=60' 18499+2806  OSO 104AG distance=60' 18421+2857  HDS2648 distance=62' 18413+2844  MMA  16 distance=63' 18452+2919  SLE 105 distance=64' 18448+2704  TDT1029 distance=73' 18509+2831  MLB 650 distance=73' 18404+2845  MLB 466AB distance=74' 18404+2845  SLE  96AD distance=74' 18404+2845  SLE  96AE distance=74' 18404+2845  MLB 466AC distance=74' 18404+2845  MLB 466BC distance=75' 18398+2800  SLE  97AC distance=78' 18398+2800  COU 640AB distance=78' 18422+2922  RAO 396 distance=81' 18421+2707  SLE 363AB distance=83' 18421+2707  SLE 363AC distance=83' 18482+2933  TDT1059 distance=85' 18388+2823  SLE 103 distance=90' 18448+2945  TDT1028 distance=91' 18387+2847  L    25 distance=94' 18393+2731  TDT 976 distance=94' 18383+2818  SLE 361 distance=95' 18408+2703  SLE 362 distance=96' 18428+2945  SLE 116 distance=97' 18384+2842  STF2356 distance=98' grafico limitrofi
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Show name coord_2000 discov# comp pa sep dist(')
Show 18455+2815 STF2381 122 8.9
Show 18464+2815 TDT1047 228 0.6 12
Show 18446+2819 SLE 365 261 8.1 13
Show 18456+2759 TDT1037 98 0.5 17
Show 18473+2825 HJ 1347 AB 274 18.5 26
Show 18473+2825 HJ 1347 AC 165 75.6 26
Show 18461+2734 SLE 366 337 10.0 42
Show 18435+2743 STF2374 AB 40 13.4 43
Show 18435+2743 STF2374 AC 358 150.6 43
Show 18446+2727 TVB 8 334 10.7 51
Show 18441+2728 RAO 397 326 3.5 51
Show 18421+2753 TDT1009 264 0.5 52
Show 18491+2834 J 1208 334 4.7 53
Show 18476+2903 DAM 679 229 19.4 55
Show 18414+2820 TDT 999 147 1.8 55
Show 18460+2720 HJ 1343 118 7.9 56
Show 18422+2851 LDS4795 163 132.8 56
Show 18459+2719 PHL9001 129 14.1 57
Show 18422+2739 STF2371 56 10.0 58
Show 18443+2720 TDS 941 92 0.8 59
Show 18475+2724 BRT 35 50 5.1 59
Show 18411+2808 SLE 104 198 9.8 59
Show 18499+2806 OSO 104 AB 112 5.0 60
Show 18499+2806 OSO 104 AD 27 12.7 60
Show 18499+2806 OSO 104 AE 252 15.1 60
Show 18499+2806 OSO 104 AF 46 23.6 60
Show 18499+2806 OSO 104 AG 135 22.1 60
Show 18421+2857 HDS2648 194 0.3 62
Show 18413+2844 MMA 16 8 12.4 63
Show 18452+2919 SLE 105 93 10.2 64
Show 18448+2704 TDT1029 107 0.5 73
Show 18509+2831 MLB 650 161 5.3 73
Show 18404+2845 MLB 466 AB 351 42.6 74
Show 18404+2845 SLE 96 AD 53 35.5 74
Show 18404+2845 SLE 96 AE 280 67.2 74
Show 18404+2845 MLB 466 AC 346 45.0 74
Show 18404+2845 MLB 466 BC 289 4.6 75
Show 18398+2800 SLE 97 AC 60 10.1 78
Show 18398+2800 COU 640 AB 90 0.4 78
Show 18422+2922 RAO 396 110 0.9 81
Show 18421+2707 SLE 363 AB 109 10.6 83
Show 18421+2707 SLE 363 AC 92 17.3 83
Show 18482+2933 TDT1059 252 2.7 85
Show 18388+2823 SLE 103 13 8.4 90
Show 18448+2945 TDT1028 69 0.6 91
Show 18387+2847 L 25 252 1.3 94
Show 18393+2731 TDT 976 80 0.9 94
Show 18383+2818 SLE 361 8 19.9 95
Show 18408+2703 SLE 362 99 8.0 96
Show 18428+2945 SLE 116 71 18.2 97
Show 18384+2842 STF2356 63 1.0 98

 
 
WDS 18455+2815 : COMPONENTS
 
 
  A
B pa=125.8°
sep=8.18"
 
 
18455+2815 A
 
 
Componente originario normalizzato AB Name HD 173702 Coord arcsec 2000 184530.77+281524.3 Mag 8.27
Spectral class G8III/IV (yellow) PmRA 16.00 PmDE 10.0 SAO 86407
HIP 92031 Tycho2 2120-01126-1 HD 173702 GC 25699
ADS 11657 BD BD+28 3073
Tycho2
Tycho2 2120-01126-1 Pflag RAmdeg 281.37821383 DEmdeg 28.25674371
PmRA 14.9 PmDE 9.1 E RAmdeg 6 E DEmdeg 6
E pmRA 1.5 E pmDE 1.4 EpRAm 1991.31 EpDEm 1991.41
Num 7 Q RAmdeg 1.3 Q DEmdeg 1.3 Q pmRA 1.4
Q pmDE 1.4 BTmag 9.484 E BTmag 0.018 VTmag 8.273
E VTmag 0.011 Prox 86 TYC T HIP 92031
CCDM A RAdeg 281.37817361 DEdeg 28.25672250 EpRA 1990 1.52
EpDE 1990 1.65 E RAdeg 6.3 E DEdeg 5.6 Posflg
Corr -0.1
SAO
SAO 86407 DelFlag RA1950 PmRA1950 0.0016
DE1950 PmDE1950 0.001 Vmag 7.8 SpType K0
Double code Source 70 CatNum 25699 DM BD+28 3073
DMcomp BDsup HD 173702 M HD 0
GC 25699 RA1950rad 4.90234849 DE1950rad 0.49223094 PmRA2000 0.0018
PmDE2000 0
Hipparcos
Catalog H HIP 92031 Proxy H RAhms 18 45 30.76
DEdms +28 15 24.2 Vmag 8.05 VarFlag R Vmag H
RAdeg 281.378 DEdeg 28.2567 AstroRef A Plx 3.05
CCDM 18455+2815 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 122 Rho 8.649 HD 173702 BD BD+28 3073
CD CP Dm number +28 3073 VIred 0.99
SpType G8III-IV R SpType Coord arcsec 2000 184530.76+281524.2
Hipparcos 2
HIP 92031 Sn 15 So 3 Nc 2
RArad 4.9109755098 DErad 0.4931728528 Plx 3.85 PmRA 16.83
PmDE 8.98 E RArad 0.52 E DErad 0.65 E Plx 0.81
E pmRA 0.59 E pmDE 0.77 Hpmag 8.2121 E Hpmag 0.002
SHp 0.018 VA 0 BV 0.969 E BV 0.014
VI 0.95
CCDM
Ccdm 18455+2815 RComp Comp A Note1
Note2 Discov num DRAs 0.90 DDEs 25.1
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.3 Sp K0 PmNote *
PmRA 44 PmDE 30 Dm number +28 3073 Cat1 BD
Name2 +28 1846 Cat2 AGK2/3 HD 173702 M HD
ADS BDS A11657 M ADS BDS N IDS IDS 18416N2809A
HIC 92031
 
 
18455+2815 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 184531.27+281519.5 Mag 10.36 PmRA 17.00
PmDE 7.0 Calc delta mag 2.09 Calc coord yes
CCDM
Ccdm 18455+2815 RComp Comp B Note1
Note2 Discov num STF2381 DRAs DDEs
R dRAs Year 1830 Theta 123 Rho 8.7
Obs 8 Vmag 10.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11657 M ADS BDS N IDS IDS 18416N2809B
HIC 92031