18028+7547 STF 2302 BC

 
 
18h 02m 49.52s +75° 47' 22.3" P.A. 287.00 sep 18.3 mag 9.97,8.10
 
 
Coord 2000 18028+7547 Discov num STF2302 Comp BC Coord arcsec 2000 18 02 49.52 +75 47 22.3
Date first 1833 Date last 2015 Obs 23
Pa first 293 Pa last 286.9 P.A. Now (θ) 286.9°
Sep first 18.8 Sep last 18.283 Sep. Now (ρ) 18.283"
Mag pri 9.97 Mag sec 8.10 delta mag (ΔM) 1.87 Spectral class
Pri motion ra -012 Sec motion ra -009
Pri motion dec +041 Sec motion dec +040
Notes N (See Notes)
rPM=0.074 (< 0.3, Physical double)
This double is physical.
 
 
18028+7547 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 166655 8999 18 02 51 +75 47 24 STF 2302 AB 2015 31 248 5.7 7.03 9.97 2.94
Show 8999 18 02 51 +75 47 24 STF 2302 AC 2015 43 278 22.9 7.03 9.66 2.63
Show 18 02 50 +75 47 22 STF 2302 BC 2015 23 287 18.3 9.97 8.10 1.87 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Draco Gaia DR2 2269103107346676608
 
 
WDS 18028+7547 STF 2302 BC : NOTES
 
 
discov_num notes refcode
STF2302 STN 45 (with 1h error in RA).
 
 
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
18028+7547 STF2302 BC 2006 15 287 18.3 9.70 9.80 D 180249.52+754722.3
18028+7547 STF2302 BC 2008 16 287 18.3 9.70 9.80 D 180249.52+754722.3
18028+7547 STF2302 BC 2010 17 287 18.1 9.70 9.80 D 180249.52+754722.3
18028+7547 STF2302 BC 2013 19 282 18.9 9.97 8.10 N 180249.52+754722.3
18028+7547 STF2302 BC 2015 20 287 18.3 9.97 8.10 N 180249.52+754722.3

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

 
 
WDS 18028+7547 STF 2302 BC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18028+7547 STF 2302 BC : MEASURES
 
 
No records found.

 
 
WDS 18028+7547 : VIRTUAL EYEPIECE
 
 

18028+7547 STF2302A mag 7.03 Sp A0V 18028+7547 STF2302B sep 5.6 P.A. 249.10 mag 9.97 18028+7547 STF2302C sep 6.4 P.A. 300.10 mag 9.66 virtual eyepiece
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Radius:
Components only
 
 
WDS 18028+7547 : ALADIN DSS IMAGE @ 18h 02m 49.52s +75° 47' 22.3"
 
 
 
 
WDS 18028+7547 STF 2302 BC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18028+7547  STF2302BC distance=1' 18028+7547  STF2302AB distance=1' 18028+7547  STF2302AC distance=1' 17580+7600  TDT 598 distance=22' 18029+7628  LOC 360AB distance=41' 17590+7634  LDS1881 distance=50' 17422+7625  KPP2682 distance=54' 17474+7549  MLR 210 distance=57' 17477+7603  TDT 508 distance=58' 17505+7635  BVD 332 distance=65' 17462+7629  MLR 209 distance=73' 18196+7636  HU  929 distance=78' 18175+7652  LOC 362 distance=84' 18187+7447  KPP 695 distance=86' 18110+7712  HU  928 distance=89' 17484+7702  LDS1879 distance=91' 17531+7423  LDS1880AB distance=92' 17536+7417  MLR 211 distance=97' 18225+7659  HU  930 distance=100' 18227+7421  TDT 824 distance=116' 17533+7802  MFL 213 distance=139' 18120+7814  LOC 363 distance=150' 18045+7316  HDS2544 distance=152' 17569+7829  CVR 208 distance=163' 17473+7823  NSN 697 distance=165' 17494+7306  LDS1878 distance=171' 18118+7248  UC 3528 distance=184' 18077+7858  SKF1082 distance=191' 18211+7244  BUP 182BC distance=195' 18211+7244  LAB   5Aa,Ab distance=198' 18211+7244  BUP 182AB distance=198' 18053+7217  TDT 668 distance=211' 18022+7151  UC  235 distance=237' 17570+7944  MFL 237 distance=238' 18002+8000  BAG   6Aa,Ab distance=253' 18002+8000  STF2308AB distance=253' 18002+8000  STF2308AC distance=253' 18072+7131  A  1168 distance=257' 17458+8003  UC 3399 distance=262' 18211+7137  GIC9022 distance=262' 18208+7120  STT 353AB distance=278' 18208+7120  STT 353AB,C distance=278' 18166+8027  LDS1884 distance=284' 18058+7101  TDS 904 distance=288' 17462+8032  LDS1877 distance=289' 18148+8035  SKF1316 distance=291' 17515+8038  MFL 219 distance=293' 17464+7059  UC 3402 distance=297' grafico limitrofi
Click on the map to see the double of your interest.
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Show name coord_2000 discov# comp pa sep dist(')
Show 18028+7547 STF2302 BC 287 18.3 1
Show 18028+7547 STF2302 AB 248 5.7 1
Show 18028+7547 STF2302 AC 278 22.9 1
Show 17580+7600 TDT 598 210 2.5 22
Show 18029+7628 LOC 360 AB 243 1.3 41
Show 17590+7634 LDS1881 179 11.3 50
Show 17422+7625 KPP2682 347 15.5 54
Show 17474+7549 MLR 210 82 0.6 57
Show 17477+7603 TDT 508 106 0.5 58
Show 17505+7635 BVD 332 169 17.7 65
Show 17462+7629 MLR 209 53 2.2 73
Show 18196+7636 HU 929 111 1.8 78
Show 18175+7652 LOC 362 289 7.1 84
Show 18187+7447 KPP 695 11 6.2 86
Show 18110+7712 HU 928 155 1.8 89
Show 17484+7702 LDS1879 35 60.8 91
Show 17531+7423 LDS1880 AB 55 2.6 92
Show 17536+7417 MLR 211 189 2.5 97
Show 18225+7659 HU 930 310 1.0 100
Show 18227+7421 TDT 824 275 1.2 116
Show 17533+7802 MFL 213 218 8.2 139
Show 18120+7814 LOC 363 67 2.1 150
Show 18045+7316 HDS2544 29 6.9 152
Show 17569+7829 CVR 208 276 53.8 163
Show 17473+7823 NSN 697 106 4.0 165
Show 17494+7306 LDS1878 106 10.1 171
Show 18118+7248 UC 3528 177 37.8 184
Show 18077+7858 SKF1082 280 1.9 191
Show 18211+7244 BUP 182 BC 303 9.1 195
Show 18211+7244 LAB 5 Aa,Ab 220 0.1 198
Show 18211+7244 BUP 182 AB 357 177.8 198
Show 18053+7217 TDT 668 43 2.0 211
Show 18022+7151 UC 235 353 32.8 237
Show 17570+7944 MFL 237 177 4.9 238
Show 18002+8000 BAG 6 Aa,Ab 316 0.1 253
Show 18002+8000 STF2308 AB 232 18.9 253
Show 18002+8000 STF2308 AC 129 225.3 253
Show 18072+7131 A 1168 327 0.7 257
Show 17458+8003 UC 3399 335 48.9 262
Show 18211+7137 GIC9022 318 2.0 262
Show 18208+7120 STT 353 AB 262 0.5 278
Show 18208+7120 STT 353 AB,C 117 72.5 278
Show 18166+8027 LDS1884 108 5.7 284
Show 18058+7101 TDS 904 108 0.9 288
Show 17462+8032 LDS1877 176 10.5 289
Show 18148+8035 SKF1316 205 54.6 291
Show 17515+8038 MFL 219 81 19.5 293
Show 17464+7059 UC 3402 2 10.2 297

 
 
WDS 18028+7547 : COMPONENTS
 
 
  A B
B pa=249.1°
sep=5.60"
 
C pa=300.1°
sep=6.43"
pa=356.4°
sep=5.23"
 
 
18028+7547 A
 
 
Name HD 166655 Coord arcsec 2000 180250.94+754724.3 Mag 7.03 Spectral class A0V (white)
PmRA -12.00 PmDE 41.0 SAO 8999 HIP 88379
Tycho2 4570-02411-1 HD 166655 GC 24685 ADS 11072
BD BD+75 655
Tycho2
Tycho2 4570-02411-1 Pflag RAmdeg 270.71217860 DEmdeg 75.79019784
PmRA -5.3 PmDE 43.1 E RAmdeg 4 E DEmdeg 4
E pmRA 1.2 E pmDE 1.3 EpRAm 1991.58 EpDEm 1991.60
Num 8 Q RAmdeg 1.5 Q DEmdeg 1.2 Q pmRA 1.6
Q pmDE 1.2 BTmag 7.120 E BTmag 0.015 VTmag 7.030
E VTmag 0.010 Prox 57 TYC T HIP 88379
CCDM A RAdeg 270.71222778 DEdeg 75.79009889 EpRA 1990 1.75
EpDE 1990 1.73 E RAdeg 4.0 E DEdeg 4.0 Posflg
Corr -0.1
SAO
SAO 8999 DelFlag RA1950 PmRA1950 -0.0039
DE1950 PmDE1950 0.041 Vmag 6.8 SpType A0
Double code Source 70 CatNum 24685 DM BD+75 655
DMcomp BDsup HD 166655 M HD 0
GC 24685 RA1950rad 4.73281675 DE1950rad 1.32269889 PmRA2000 -0.0025
PmDE2000 0.041
Hipparcos
Catalog H HIP 88379 Proxy H RAhms 18 02 50.94
DEdms +75 47 24.3 Vmag 6.95 VarFlag 1 R Vmag H
RAdeg 270.712 DEdeg 75.7901 AstroRef A Plx 7.43
CCDM 18028+7547 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 247 Rho 5.7 HD 166655 BD BD+75 655
CD CP Dm number +75 655 VIred 0.57
SpType A0 R SpType Coord arcsec 2000 180250.94+754724.3
Hipparcos 2
HIP 88379 Sn 15 So 3 Nc 2
RArad 4.7248198115 DErad 1.3227866626 Plx 7.09 PmRA -11.56
PmDE 41.4 E RArad 0.42 E DErad 0.43 E Plx 0.45
E pmRA 0.47 E pmDE 0.58 Hpmag 6.9914 E Hpmag 0.0021
SHp 0.016 VA 2 BV 0.123 E BV 0.008
VI 0.14
CCDM
Ccdm 18028+7547 RComp Comp A Note1
Note2 Discov num DRAs 3.27 DDEs 25.1
R dRAs 10 Year Theta Rho
Obs 3 Vmag 6.9 Sp A0 PmNote *
PmRA 13 PmDE 52 Dm number +75 655 Cat1 BD
Name2 +75 747 Cat2 AGK2/3 HD 166655 M HD
ADS BDS A11072 M ADS BDS N IDS IDS 18065N7547A
HIC 88379
 
 
18028+7547 B
 
 
Coord arcsec 2000 180249.52+754722.3 Coord calc 180249.52+754722.3 Mag 9.97 PmRA -12.00
PmDE 41.0 Calc delta mag 2.94
CCDM
Ccdm 18028+7547 RComp Comp B Note1
Note2 Discov num STF2302 DRAs DDEs
R dRAs Year 1984 Theta 247 Rho 5.7
Obs 12 Vmag 9.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11072 M ADS BDS N IDS IDS 18065N7547B
HIC 88379
 
 
18028+7547 C
 
 
Coord arcsec 2000 180249.43+754727.5 Mag 9.66 PmRA -9.00 PmDE 40.0
Calc delta mag 2.63 Calc coord yes
CCDM
Ccdm 18028+7547 RComp Comp C Note1
Note2 Discov num STF2302 DRAs -3.10 DDEs 27.8
R dRAs 10 Year 1984 Theta 274 Rho 22.9
Obs 12 Vmag 9.4 Sp PmNote *
PmRA -4 PmDE 42 Dm number Cat1
Name2 +75 746 Cat2 AGK2/3 HD M HD
ADS BDS A11072 M ADS BDS N IDS IDS 18065N7547C
HIC