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Doubles in session


Current system
18053+8129
STF 2326
HD 168518


Nearby doubles
30' : 17527+8122
MFL 252

43' : 18208+8158
LDS1885

44' : 18247+8123
LOC 372

59' : 18148+8035
SKF1316

61' : 17515+8038
MFL 219

67' : 18166+8027
LDS1884

73' : 17462+8032
LDS1877

78' : 18252+8028
BVD 128

90' : 18002+8000
STF2308AB

98' : 17458+8003
UC 3399

107' : 17570+7944
MFL 237

122' : 17478+8326
TOI1147

143' : 17578+8351
UC 3457

144' : 18241+7913
UC 3571

147' : 17492+8352
MFL 214

148' : 17530+8354
STT 349

152' : 18077+7858
SKF1082

152' : 18007+8401
LOC 366

160' : 18039+8409
LDS1883

170' : 18211+8416
LDS1887

182' : 17569+7829
CVR 208

187' : 18014+8436
HU 65AB

191' : 18060+8439
KPP4083

192' : 17473+7823
NSN 697

197' : 18120+7814
LOC 363

210' : 17533+7802
MFL 213



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.

18053+8129 STF 2326 (HD 168518)

 
 
18h 05m 19.75s +81° 29' 08.1" P.A. 194.00 sep 16.0 mag 7.98,8.95 Sp A8IV
 
 
Coord 2000 18053+8129 Discov num STF2326 Comp Coord arcsec 2000 18 05 19.75 +81 29 08.1
Date first 1832 Date last 2015 Obs 45
Pa first 202 Pa last 194.2 P.A. Now (θ) 194.2°
Sep first 15.6 Sep last 15.963 Sep. Now (ρ) 15.963"
Mag pri 7.98 Mag sec 8.95 delta mag (ΔM) 0.97 Spectral class A8IV (white)
Pri motion ra +014 Sec motion ra +016
Pri motion dec +028 Sec motion dec +024
Notes N (See Notes)
rPM=0.143 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 168518 Constellation Draco SAO 2993 Tycho2 4582-01434-1
Gaia DR2 2296115767281716224 HD 168518 GC 24837
 
 
WDS 18053+8129 STF 2326 (HD 168518) : NOTES
 
 
discov_num notes refcode
STF2326 B is BD+81@618.
Additional notes may be found in Dembowski (1883). D__1883
 
 
REFERENCES
 
 
refcode metd author reference
D__1883 Ma - Dembowski, H. ...................
D__1883 Misure micrometriche di Stelle Doppie e multiple...
D__1883 (Rome, Coi tipi del Salviucci), vol. I, 1883
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18053+8129 STF2326 2002 37 195 15.9 7.98 8.95 A8IV N D 180519.75+812908.1
18053+8129 STF2326 2004 38 194 15.8 7.98 8.95 A8IV N D 180519.75+812908.1
18053+8129 STF2326 2013 39 194 15.9 7.98 8.95 A8IV N D 180519.75+812908.1
18053+8129 STF2326 2015 41 194 15.9 7.98 8.95 A8IV N 180519.75+812908.1

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

 
 
WDS 18053+8129 STF 2326 (HD 168518) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18053+8129 STF 2326 (HD 168518) : MEASURES
 
 
No records found.

 
 
WDS 18053+8129 (HD 168518) : VIRTUAL EYEPIECE
 
 

18053+8129 STF2326A mag 7.98 Sp A8IV 18053+8129 STF2326B sep 15.5 P.A. 182.10 mag 8.95 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 18053+8129 (HD 168518) : ALADIN DSS IMAGE @ 18h 05m 19.75s +81° 29' 08.1"
 
 
 
 
WDS 18053+8129 STF 2326 (HD 168518) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18053+8129 STF2326 distance=1' 17527+8122 MFL 252 distance=30' 18208+8158 LDS1885 distance=43' 18247+8123 LOC 372 distance=44' 18148+8035 SKF1316 distance=59' 17515+8038 MFL 219 distance=61' 18166+8027 LDS1884 distance=67' 17462+8032 LDS1877 distance=73' 18252+8028 BVD 128 distance=78' 18002+8000 BAG 6Aa,Ab distance=90' 18002+8000 STF2308AB distance=90' 18002+8000 STF2308AC distance=90' 17458+8003 UC 3399 distance=98' 17570+7944 MFL 237 distance=107' 17478+8326 TOI1147 distance=122' 17578+8351 UC 3457 distance=143' 18241+7913 UC 3571 distance=144' 17492+8352 MFL 214 distance=147' 17530+8354 STT 349 distance=148' 18077+7858 SKF1082 distance=152' 18007+8401 LOC 366 distance=152' 18039+8409 LDS1883 distance=160' 18211+8416 LDS1887 distance=170' 17569+7829 CVR 208 distance=182' 18014+8436 HU 65AB distance=187' 18014+8436 HU 65AC distance=187' 18014+8436 FOX 216AD distance=187' 18060+8439 KPP4083 distance=191' 17473+7823 NSN 697 distance=192' 18120+7814 LOC 363 distance=197' 17533+7802 MFL 213 distance=210' 18237+7741 LOC 368 distance=234' 18049+8528 HDS2548 distance=240' 18243+8544 TDT 837 distance=257' 18110+7712 HU 928 distance=259' 18214+8554 LOC 381 distance=267' 17484+7702 LDS1879 distance=272' 18225+7659 HU 930 distance=274' 18175+7652 LOC 362 distance=279' 17590+7634 LDS1881 distance=296' 18196+7636 HU 929 distance=296' 17505+7635 BVD 332 distance=298' 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 18053+8129 STF2326 194 16.0 1
Show 17527+8122 MFL 252 323 8.7 30
Show 18208+8158 LDS1885 141 10.7 43
Show 18247+8123 LOC 372 63 22.1 44
Show 18148+8035 SKF1316 205 54.6 59
Show 17515+8038 MFL 219 81 19.5 61
Show 18166+8027 LDS1884 108 5.7 67
Show 17462+8032 LDS1877 176 10.5 73
Show 18252+8028 BVD 128 317 24.7 78
Show 18002+8000 BAG 6 Aa,Ab 316 0.1 90
Show 18002+8000 STF2308 AB 232 18.9 90
Show 18002+8000 STF2308 AC 129 225.3 90
Show 17458+8003 UC 3399 335 48.9 98
Show 17570+7944 MFL 237 177 4.9 107
Show 17478+8326 TOI1147 346 0.4 122
Show 17578+8351 UC 3457 310 32.8 143
Show 18241+7913 UC 3571 73 46.1 144
Show 17492+8352 MFL 214 257 15.0 147
Show 17530+8354 STT 349 52 0.5 148
Show 18077+7858 SKF1082 280 1.9 152
Show 18007+8401 LOC 366 86 6.5 152
Show 18039+8409 LDS1883 161 32.0 160
Show 18211+8416 LDS1887 273 98.9 170
Show 17569+7829 CVR 208 276 53.8 182
Show 18014+8436 HU 65 AB 257 1.7 187
Show 18014+8436 HU 65 AC 197 9.2 187
Show 18014+8436 FOX 216 AD 133 26.1 187
Show 18060+8439 KPP4083 45 7.3 191
Show 17473+7823 NSN 697 106 4.0 192
Show 18120+7814 LOC 363 67 2.1 197
Show 17533+7802 MFL 213 218 8.2 210
Show 18237+7741 LOC 368 262 8.5 234
Show 18049+8528 HDS2548 44 0.4 240
Show 18243+8544 TDT 837 350 0.8 257
Show 18110+7712 HU 928 155 1.8 259
Show 18214+8554 LOC 381 73 3.3 267
Show 17484+7702 LDS1879 35 60.8 272
Show 18225+7659 HU 930 310 1.0 274
Show 18175+7652 LOC 362 289 7.1 279
Show 17590+7634 LDS1881 179 11.3 296
Show 18196+7636 HU 929 111 1.8 296
Show 17505+7635 BVD 332 169 17.7 298

 
 
WDS 18053+8129 : COMPONENTS
 
 
  A
B pa=182.1°
sep=15.49"
 
 
18053+8129 A
 
 
Componente originario normalizzato AB Name HD 168518 Coord arcsec 2000 180519.75+812908.1 Mag 7.98
Spectral class A8IV (white) PmRA 14.00 PmDE 28.0 SAO 2993
Tycho2 4582-01434-1 HD 168518 GC 24837 DM BD+81 619
Tycho2
Tycho2 4582-01434-1 Pflag RAmdeg 271.33230265 DEmdeg 81.48559658
PmRA 15.2 PmDE 27.4 E RAmdeg 5 E DEmdeg 5
E pmRA 1.2 E pmDE 1.3 EpRAm 1991.54 EpDEm 1991.55
Num 10 Q RAmdeg 1.0 Q DEmdeg 1.6 Q pmRA 1.0
Q pmDE 1.5 BTmag 8.253 E BTmag 0.016 VTmag 7.978
E VTmag 0.011 Prox 160 TYC T HIP
CCDM RAdeg 271.33206722 DEdeg 81.48553389 EpRA 1990 1.75
EpDE 1990 1.75 E RAdeg 5.3 E DEdeg 5.4 Posflg
Corr 0.0
SAO
SAO 2993 DelFlag RA1950 PmRA1950 0.0044
DE1950 PmDE1950 0.03 Vmag 7.7 SpType A5
Double code Source 70 CatNum 24837 DM BD+81 619
DMcomp BDsup HD 168518 M HD 0
GC 24837 RA1950rad 4.75684997 DE1950rad 1.42202152 PmRA2000 0.0062
PmDE2000 0.032
CCDM
Ccdm 18053+8129 RComp Comp A Note1
Note2 Discov num DRAs 1.40 DDEs 8.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.7 Sp A5 PmNote *
PmRA 1 PmDE 29 Dm number +81 619 Cat1 BD
Name2 +81 568 Cat2 AGK2/3 HD 168518 M HD
ADS BDS A11156 M ADS BDS N IDS IDS 18150N8127A
HIC
 
 
18053+8129 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 180519.49+812852.6 Mag 8.95 PmRA 16.00
PmDE 24.0 Tycho2 4582-01435-1 Calc delta mag 0.97 Calc coord yes
Tycho2
Tycho2 4582-01435-1 Pflag RAmdeg 271.32492439 DEmdeg 81.48129077
PmRA 15.5 PmDE 24.2 E RAmdeg 10 E DEmdeg 11
E pmRA 1.4 E pmDE 1.4 EpRAm 1991.16 EpDEm 1990.96
Num 6 Q RAmdeg 1.3 Q DEmdeg 1.5 Q pmRA 1.4
Q pmDE 1.5 BTmag 9.433 E BTmag 0.021 VTmag 8.946
E VTmag 0.017 Prox 160 TYC T HIP
CCDM RAdeg 271.32468722 DEdeg 81.48123528 EpRA 1990 1.79
EpDE 1990 1.78 E RAdeg 10.2 E DEdeg 11.0 Posflg
Corr -0.1
CCDM
Ccdm 18053+8129 RComp Comp B Note1
Note2 Discov num STF2326 DRAs -0.53 DDEs -7.0
R dRAs 10 Year 1940 Theta 196 Rho 16.4
Obs 12 Vmag 10.0 Sp PmNote *
PmRA -7 PmDE 29 Dm number +81 618 Cat1 BD
Name2 +81 567 Cat2 AGK2/3 HD M HD
ADS BDS A11156 M ADS BDS N IDS IDS 18150N8127B
HIC