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Doubles in session


Current system
18588+4041
STF 2431
HD 176502


Nearby doubles
4' : 18585+4043
KOI 257AB

16' : 18574+4043
KOI2854

16' : 18574+4044
KOI4119

21' : 18581+4022
COU1796

21' : 18586+4101
KOI 190

23' : 18569+4048
KOI1962

23' : 19003+4054
KOI2191AB

23' : 18568+4039
UC 241

25' : 19000+4100
COU1798

30' : 18569+4019
DEA 334

32' : 19001+4013
KOI1843

33' : 18595+4112
KOI1995

34' : 18574+4012
KOI6123

35' : 18571+4011
DEA 163

36' : 18595+4115
KOI5210

36' : 18576+4114
KOI 654

38' : 19013+4104
KOI4002

40' : 18580+4120
KOI3414

41' : 18554+4052
ES 1657

42' : 18554+4025
KOI4713

43' : 18551+4051
HEI 73

46' : 18558+4011
TDS 953

47' : 18599+4125
KOI2098AB

48' : 19029+4051
KOI2369

49' : 18556+4113
KOI2031AB

50' : 19028+4100
KOI4097



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.

18588+4041 STF 2431 (HD 176502)

 
 
18h 58m 46.59s +40° 40' 45.1" P.A. 236.00 sep 19.0 mag 6.17,9.61 Sp B3V dist. 300.3 pc (979.58 l.y.)
 
 
Coord 2000 18588+4041 Discov num STF2431 Comp Coord arcsec 2000 18 58 46.59 +40 40 45.1
Date first 1782 Date last 2013 Obs 45
Pa first 246 Pa last 235.7 P.A. Now (θ) 235.7°
Sep first 19.8 Sep last 19.009 Sep. Now (ρ) 19.009"
Mag pri 6.17 Mag sec 9.61 delta mag (ΔM) 3.44 Spectral class B3V (blue-white)
Pri motion ra +002 Sec motion ra +000
Pri motion dec +000 Sec motion dec -004
Notes N V (See Notes, Proper motion indicates physical)
rPM=1.118
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 176502 Constellation Lyra SAO 47965 HIP 93177
Tycho2 3123-01062-1 Gaia DR2 2103449001881575680 HD 176502 HR 7179
GC 26087 ADS 11910 BD BD+40 3544 Distance 300.3
Distance ly 979.58
 
 
WDS 18588+4041 STF 2431 (HD 176502) : NOTES
 
 
discov_num notes refcode
STF2431 BDS 8981, H IV 93 is identical. A spectroscopic binary.
H 4 93.
 
 
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
18588+4041 STF2431 2006 36 237 19.3 6.17 9.61 B3V N D 185846.59+404045.1
18588+4041 STF2431 2009 37 236 19.3 6.17 9.61 B3V N D 185846.59+404045.1
18588+4041 STF2431 2012 42 233 19.2 6.17 9.61 B3V N D 185846.59+404045.1
18588+4041 STF2431 2013 43 236 19.0 6.17 9.61 B3V NV 185846.59+404045.1

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

 
 
WDS 18588+4041 STF 2431 (HD 176502) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18588+4041 STF 2431 (HD 176502) : MEASURES
 
 
No records found.

 
 
WDS 18588+4041 (HD 176502) : VIRTUAL EYEPIECE
 
 

18588+4041 STF2431A mag 6.17 Sp B3V 18588+4041 STF2431B sep 16.0 P.A. 228.00 mag 9.61 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 18588+4041 (HD 176502) : ALADIN DSS IMAGE @ 18h 58m 46.59s +40° 40' 45.1"
 
 
 
 
WDS 18588+4041 STF 2431 (HD 176502) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18588+4041 STF2431 distance=0' 18585+4043 KOI 257AB distance=4' 18585+4043 KOI 257AC distance=4' 18574+4043 KOI2854 distance=16' 18574+4044 KOI4119 distance=16' 18581+4022 COU1796 distance=21' 18586+4101 KOI 190 distance=21' 18569+4048 KOI1962 distance=23' 19003+4054 KOI2191AB distance=23' 19003+4054 KOI2191AC distance=23' 18568+4039 UC 241 distance=23' 19000+4100 COU1798 distance=25' 18569+4019 DEA 334 distance=30' 19001+4013 KOI1843 distance=32' 18595+4112 KOI1995 distance=33' 18574+4012 KOI6123 distance=34' 18571+4011 DEA 163 distance=35' 18595+4115 KOI5210 distance=36' 18576+4114 KOI 654 distance=36' 19013+4104 KOI4002 distance=38' 18580+4120 KOI3414 distance=40' 18554+4052 ES 1657 distance=41' 18554+4025 KOI4713 distance=42' 18551+4051 HEI 73 distance=43' 18558+4011 TDS 953 distance=46' 18599+4125 KOI2098AB distance=47' 18599+4125 KOI2098AC distance=47' 19029+4051 KOI2369 distance=48' 18556+4113 KOI2031AB distance=49' 18556+4113 KOI2031AC distance=49' 18556+4113 KOI2031AD distance=49' 18556+4113 KOI2031AE distance=49' 18556+4113 KOI2031AF distance=49' 19028+4100 KOI4097 distance=50' 18550+4105 KOI3810 distance=50' 18549+4109 DEA 438 distance=52' 19032+4056 KOI2856 distance=53' 18584+4133 DEA 374 distance=53' 18574+4131 KOI 227AB distance=53' 18574+4131 KOI 227AC distance=53' 18574+4131 KOI 227AD distance=53' 19006+3952 HDS2696 distance=54' 19006+3951 COU1933 distance=55' 19034+4056 KOI3784 distance=55' 18547+4010 DEA 454 distance=55' 18560+3955 KOI4004 distance=56' 18574+4135 KOI2858 distance=56' 18576+4135 DEA 260 distance=57' 18583+4136 DEA 195 distance=57' 19038+4040 COU2196 distance=58' 18558+4128 KOI3004 distance=59' 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 18588+4041 STF2431 236 19.0
Show 18585+4043 KOI 257 AB 87 1.9 4
Show 18585+4043 KOI 257 AC 116 4.4 4
Show 18574+4043 KOI2854 299 2.2 16
Show 18574+4044 KOI4119 299 2.4 16
Show 18581+4022 COU1796 288 4.0 21
Show 18586+4101 KOI 190 109 0.2 21
Show 18569+4048 KOI1962 114 0.1 23
Show 19003+4054 KOI2191 AB 233 1.8 23
Show 19003+4054 KOI2191 AC 312 5.2 23
Show 18568+4039 UC 241 145 14.8 23
Show 19000+4100 COU1798 346 0.7 25
Show 18569+4019 DEA 334 102 14.5 30
Show 19001+4013 KOI1843 268 3.1 32
Show 18595+4112 KOI1995 355 3.0 33
Show 18574+4012 KOI6123 204 3.0 34
Show 18571+4011 DEA 163 30 8.1 35
Show 18595+4115 KOI5210 269 2.7 36
Show 18576+4114 KOI 654 112 3.5 36
Show 19013+4104 KOI4002 216 3.7 38
Show 18580+4120 KOI3414 243 4.9 40
Show 18554+4052 ES 1657 355 3.7 41
Show 18554+4025 KOI4713 251 1.7 42
Show 18551+4051 HEI 73 321 0.7 43
Show 18558+4011 TDS 953 0.8 46
Show 18599+4125 KOI2098 AB 156 2.9 47
Show 18599+4125 KOI2098 AC 133 3.3 47
Show 19029+4051 KOI2369 40 3.4 48
Show 18556+4113 KOI2031 AB 246 0.1 49
Show 18556+4113 KOI2031 AC 46 3.6 49
Show 18556+4113 KOI2031 AD 330 4.3 49
Show 18556+4113 KOI2031 AE 264 4.8 49
Show 18556+4113 KOI2031 AF 219 6.5 49
Show 19028+4100 KOI4097 15 0.2 50
Show 18550+4105 KOI3810 54 3.1 50
Show 18549+4109 DEA 438 26 25.7 52
Show 19032+4056 KOI2856 287 2.3 53
Show 18584+4133 DEA 374 60 17.6 53
Show 18574+4131 KOI 227 AB 71 0.3 53
Show 18574+4131 KOI 227 AC 149 3.4 53
Show 18574+4131 KOI 227 AD 190 6.5 53
Show 19006+3952 HDS2696 138 0.3 54
Show 19006+3951 COU1933 195 0.6 55
Show 19034+4056 KOI3784 238 3.0 55
Show 18547+4010 DEA 454 55 33.3 55
Show 18560+3955 KOI4004 218 1.9 56
Show 18574+4135 KOI2858 322 3.6 56
Show 18576+4135 DEA 260 250 11.0 57
Show 18583+4136 DEA 195 7 9.2 57
Show 19038+4040 COU2196 332 0.5 58
Show 18558+4128 KOI3004 193 3.8 59

 
 
WDS 18588+4041 : COMPONENTS
 
 
  A
B pa=228.0°
sep=16.02"
 
 
18588+4041 A
 
 
Componente originario normalizzato AB Name HD 176502 Coord arcsec 2000 185846.59+404045.1 Mag 6.17
Spectral class B3V (blue-white) PmRA 2.00 PmDE 0.0 SAO 47965
HIP 93177 Tycho2 3123-01062-1 HD 176502 HR 7179
GC 26087 BD BD+40 3544
Tycho2
Tycho2 3123-01062-1 Pflag RAmdeg 284.69411947 DEmdeg 40.67919317
PmRA 2.0 PmDE -0.5 E RAmdeg 4 E DEmdeg 4
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.26 EpDEm 1991.36
Num 15 Q RAmdeg 0.8 Q DEmdeg 0.5 Q pmRA 0.7
Q pmDE 0.6 BTmag 5.997 E BTmag 0.014 VTmag 6.167
E VTmag 0.010 Prox 190 TYC T HIP 93177
CCDM RAdeg 284.69411278 DEdeg 40.67919444 EpRA 1990 1.54
EpDE 1990 1.67 E RAdeg 3.6 E DEdeg 3.5 Posflg
Corr 0.0
SAO
SAO 47965 DelFlag RA1950 PmRA1950 0.0003
DE1950 PmDE1950 0 Vmag 6.1 SpType B5
Double code Source 70 CatNum 26087 DM BD+40 3544
DMcomp BDsup HD 176502 M HD 0
GC 26087 RA1950rad 4.961704 DE1950rad 0.70876987 PmRA2000 0.0007
PmDE2000 -0.001
Hipparcos
Catalog H HIP 93177 Proxy RAhms 18 58 46.59
DEdms +40 40 45.1 Vmag 6.2 VarFlag 2 R Vmag T
RAdeg 284.694 DEdeg 40.6792 AstroRef Plx 3.44
CCDM 18588+4041 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 176502 BD BD+40 3544
CD CP Dm number +40 3544 VIred -0.16
SpType B3V R SpType Coord arcsec 2000 185846.59+404045.1
Hipparcos 2
HIP 93177 Sn 7 So 0 Nc 1
RArad 4.9688496118 DErad 0.7099858938 Plx 3.33 PmRA 2.14
PmDE -0.21 E RArad 0.29 E DErad 0.42 E Plx 0.41
E pmRA 0.31 E pmDE 0.52 Hpmag 6.1513 E Hpmag 0.0043
SHp 0.034 VA 2 BV -0.146 E BV 0.006
VI -0.14
CCDM
Ccdm 18588+4041 RComp Comp A Note1
Note2 Discov num DRAs -1.30 DDEs -14.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.2 Sp B5 PmNote *
PmRA 16 PmDE 6 Dm number +40 3544 Cat1 BD
Name2 +40 1754 Cat2 AGK2/3 HD 176502 M HD
ADS BDS A11910 M ADS BDS N IDS IDS 18555N4033A
HIC 93177
 
 
18588+4041 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 185845.54+404034.4 Mag 9.61 PmRA 0.00
PmDE -4.0 Calc delta mag 3.44 Calc coord yes
CCDM
Ccdm 18588+4041 RComp Comp B Note1
Note2 Discov num STF2431 DRAs -2.67 DDEs -25.2
R dRAs 90 Year 1829 Theta 236 Rho 18.9
Obs 8 Vmag 8.5 Sp PmNote
PmRA 16 PmDE 6 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11910 M ADS BDS N N IDS IDS 18555N4033B
HIC