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Current system
18301+0404
STF 2322 AC


Nearby doubles
15' : 18305+0416
A 583

16' : 18291+0408
A 581AB

26' : 18284+0407
J 521

29' : 18307+0431
STTA170

32' : 18280+0400
BAL2494

39' : 18278+0344
ARY 58

43' : 18272+0404
FAR 20

53' : 18286+0451
STTA168AB

54' : 18334+0341
HJ 861

58' : 18267+0337
BAL2493

59' : 18337+0426
GWP2786

65' : 18258+0409
RAO 607

65' : 18258+0359
J 462

65' : 18344+0405
TDT 940

65' : 18342+0341
ABT9001

66' : 18262+0435
TDT 866

72' : 18295+0253
BAL1967AB

73' : 18289+0514
CLV 1

73' : 18289+0515
LDS5237

77' : 18322+0514
GWP2781

80' : 18270+0258
LDS5864

81' : 18248+0350
BAL2491

89' : 18264+0255
HEI 560

89' : 18243+0347
BAL2490

92' : 18249+0454
J 2129AB

97' : 18283+0537
TDT 897



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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18301+0404 STF 2322 AC

 
 
18h 30m 05.12s +04° 03' 55.3" P.A. 295.00 sep 67.2 mag 6.67,12.79 Sp B2V dist. 507.61 pc (1655.82 l.y.)
 
 
Coord 2000 18301+0404 Discov num STF2322 Comp AC Coord arcsec 2000 18 30 05.12 +04 03 55.3
Date first 1912 Date last 2015 Obs 10
Pa first 295 Pa last 294.9 P.A. Now (θ) 294.9°
Sep first 66.9 Sep last 67.222 Sep. Now (ρ) 67.222"
Mag pri 6.67 Mag sec 12.79 delta mag (ΔM) 6.12 Spectral class B2V (blue-white)
Pri motion ra -001 Sec motion ra -005
Pri motion dec -007 Sec motion dec -004
Notes N (See Notes)
rPM=0.707
Nature of this double is uncertain.
 
 
18301+0404 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 123571 18 30 05 +04 03 55 CHR 72 Aa,Ab 2021 17 285 0.1 6.70 9.60 2.90 Y
Show HD 170580 123571 18 30 05 +04 03 55 STF 2322 AB 2009 25 172 19.8 6.67 11.28 4.61
Show 123571 18 30 05 +04 03 55 STF 2322 AC 2015 10 295 67.2 6.67 12.79 6.12 <===
Show 123571 18 30 05 +04 03 55 STF 2322 AD 2009 7 197 85.3 6.67 13.39 6.72
Quintuple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ophiuchus SAO 123571 HIP 90676 Tycho2 0454-01662-1
Gaia DR2 4284093473916591104 HD 170580 HR 6941 ADS 11399
BD BD+03 3727 FK5 3469 Distance 507.61 Distance ly 1655.82
 
 
WDS 18301+0404 STF 2322 AC : NOTES
 
 
discov_num notes refcode
CHR 72 Aa,Ab: 1985.8424: This autocorrelogram was remeasured; the new results
are listed here.
 
 
REFERENCES
 
 
refcode metd author reference
CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
CHR (see papers by Hartkopf, Mason, McAlister, etc.)
CHR9999 Sc j McAlister, H.A., Hartkopf, W.I., et al. ...................
CHR9999 Unpublished, manuscript or reference not found.
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
18301+0404 STF2322 AC 2006 7 294 68.3 6.67 12.79 B2V D 183005.12+040355.3
18301+0404 STF2322 AC 2009 8 295 67.7 6.67 12.79 B2V N D 183005.12+040355.3
18301+0404 STF2322 AC 2015 10 295 67.2 6.67 12.79 B2V N 183005.12+040355.3

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

 
 
WDS 18301+0404 STF 2322 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18301+0404 STF 2322 AC : MEASURES
 
 
No records found.

 
 
WDS 18301+0404 : VIRTUAL EYEPIECE
 
 

18301+0404 STF2322A mag 6.67 Sp B2V 18301+0404 CHR 72Ab sep 0.1 P.A. 285.10 mag 9.6 18301+0404 STF2322B sep 19.8 P.A. 171.80 mag 11.28 18301+0404 STF2322C sep 67.1 P.A. 295.00 mag 12.79 18301+0404 STF2322D sep 85.3 P.A. 196.80 mag 13.39 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 18301+0404 : ALADIN DSS IMAGE @ 18h 30m 05.12s +04° 03' 55.3"
 
 
 
 
WDS 18301+0404 STF 2322 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18301+0404 CHR 72Aa,Ab distance=1' 18301+0404 STF2322AB distance=1' 18301+0404 STF2322AC distance=1' 18301+0404 STF2322AD distance=1' 18305+0416 A 583 distance=15' 18291+0408 A 581AB distance=16' 18291+0408 A 581AB,C distance=16' 18284+0407 J 521 distance=26' 18307+0431 STTA170 distance=29' 18280+0400 BAL2494 distance=32' 18278+0344 ARY 58 distance=39' 18272+0404 FAR 20 distance=43' 18286+0451 STTA168AB distance=53' 18286+0451 STTA168AC distance=53' 18286+0451 SLE 179AD distance=53' 18286+0451 SLE 179AE distance=53' 18286+0451 SLE 179AF distance=53' 18334+0341 HJ 861 distance=54' 18267+0337 BAL2493 distance=58' 18337+0426 GWP2786 distance=59' 18258+0409 RAO 607 distance=65' 18258+0359 J 462 distance=65' 18344+0405 TDT 940 distance=65' 18342+0341 ABT9001 distance=65' 18262+0435 TDT 866 distance=66' 18295+0253 BAL1967AB distance=72' 18289+0514 CLV 1 distance=73' 18289+0515 LDS5237 distance=73' 18322+0514 GWP2781 distance=77' 18270+0258 LDS5864 distance=80' 18248+0350 BAL2491 distance=81' 18264+0255 HEI 560 distance=89' 18243+0347 BAL2490 distance=89' 18249+0454 J 2129AB distance=92' 18249+0454 J 2129AC distance=92' 18283+0537 TDT 897 distance=97' 18356+0456 BU 643AB distance=98' 18356+0456 STF2342AC distance=98' 18356+0456 FOX9031AD distance=98' 18251+0258 BAL1965 distance=99' 18360+0452 J 2138 distance=100' 18233+0403 CLZ 73 distance=102' 18314+0545 TDT 925 distance=103' 18234+0431 BAL2927 distance=104' 18341+0530 J 1833 distance=104' 18329+0539 SLE 495 distance=104' 18234+0432 SLE 164 distance=105' 18357+0507 GRV 234 distance=106' 18254+0523 SLE 173 distance=107' 18360+0506 A 354 distance=109' 18365+0457 HJ 864 distance=110' 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 18301+0404 CHR 72 Aa,Ab 285 0.1 1
Show 18301+0404 STF2322 AB 172 19.8 1
Show 18301+0404 STF2322 AC 295 67.2 1
Show 18301+0404 STF2322 AD 197 85.3 1
Show 18305+0416 A 583 265 0.2 15
Show 18291+0408 A 581 AB 140 0.4 16
Show 18291+0408 A 581 AB,C 227 10.2 16
Show 18284+0407 J 521 304 5.3 26
Show 18307+0431 STTA170 5 100.0 29
Show 18280+0400 BAL2494 72 20.2 32
Show 18278+0344 ARY 58 109 88.4 39
Show 18272+0404 FAR 20 126 60.3 43
Show 18286+0451 STTA168 AB 161 47.2 53
Show 18286+0451 STTA168 AC 217 244.2 53
Show 18286+0451 SLE 179 AD 210 251.7 53
Show 18286+0451 SLE 179 AE 226 304.1 53
Show 18286+0451 SLE 179 AF 233 288.5 53
Show 18334+0341 HJ 861 179 20.0 54
Show 18267+0337 BAL2493 95 18.1 58
Show 18337+0426 GWP2786 211 213.7 59
Show 18258+0409 RAO 607 181 3.6 65
Show 18258+0359 J 462 347 4.1 65
Show 18344+0405 TDT 940 340 0.4 65
Show 18342+0341 ABT9001 339 20.0 65
Show 18262+0435 TDT 866 274 0.5 66
Show 18295+0253 BAL1967 AB 134 8.2 72
Show 18289+0514 CLV 1 355 40.8 73
Show 18289+0515 LDS5237 329 6.0 73
Show 18322+0514 GWP2781 267 114.8 77
Show 18270+0258 LDS5864 43 67.4 80
Show 18248+0350 BAL2491 79 6.9 81
Show 18264+0255 HEI 560 208 1.7 89
Show 18243+0347 BAL2490 289 19.2 89
Show 18249+0454 J 2129 AB 117 12.7 92
Show 18249+0454 J 2129 AC 2 7.0 92
Show 18283+0537 TDT 897 169 0.5 97
Show 18356+0456 BU 643 AB 325 13.7 98
Show 18356+0456 STF2342 AC 33.6 98
Show 18356+0456 FOX9031 AD 323 35.3 98
Show 18251+0258 BAL1965 73 5.1 99
Show 18360+0452 J 2138 140 5.2 100
Show 18233+0403 CLZ 73 9 79.0 102
Show 18314+0545 TDT 925 241 0.6 103
Show 18234+0431 BAL2927 206 2.4 104
Show 18341+0530 J 1833 35 6.9 104
Show 18329+0539 SLE 495 99 8.5 104
Show 18234+0432 SLE 164 34 9.6 105
Show 18357+0507 GRV 234 359 33.6 106
Show 18254+0523 SLE 173 133 19.0 107
Show 18360+0506 A 354 9 4.6 109
Show 18365+0457 HJ 864 326 19.6 110

 
 
WDS 18301+0404 : COMPONENTS
 
 
  A Ab B C
Ab pa=285.1°
sep=0.11"
 
B pa=171.8°
sep=19.81"
pa=171.5°
sep=19.85"
 
C pa=295.0°
sep=67.08"
pa=295.0°
sep=66.98"
pa=307.0°
sep=79.66"
 
D pa=196.8°
sep=85.32"
pa=196.7°
sep=85.32"
pa=203.8°
sep=67.88"
pa=161.8°
sep=115.81"
 
 
18301+0404 A
 
 
Name HD 170580 Coord arcsec 2000 183005.12+040355.3 Mag 6.67 Spectral class B2V (blue-white)
PmRA -1.00 PmDE -7.0 SAO 123571 HIP 90676
Tycho2 0454-01662-1 HD 170580 HR 6941 GC 25256
BD BD+03 3727 FK5 3469
Tycho2
Tycho2 0454-01662-1 Pflag RAmdeg 277.52133671 DEmdeg 4.06535588
PmRA 0.9 PmDE -4.8 E RAmdeg 4 E DEmdeg 4
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.51 EpDEm 1991.40
Num 19 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 0.9
Q pmDE 0.9 BTmag 6.765 E BTmag 0.015 VTmag 6.683
E VTmag 0.010 Prox 999 TYC T HIP 90676
CCDM RAdeg 277.52133500 DEdeg 4.06536722 EpRA 1990 1.78
EpDE 1990 1.65 E RAdeg 3.7 E DEdeg 4.0 Posflg
Corr -0.2
SAO
SAO 123571 DelFlag RA1950 PmRA1950 -0.0006
DE1950 PmDE1950 -0.017 Vmag 6.5 SpType B5
Double code Source 70 CatNum 25256 DM BD+03 3727
DMcomp BDsup HD 170580 M HD 0
GC 25256 RA1950rad 4.83281608 DE1950rad 0.07034187 PmRA2000 -0.0004
PmDE2000 -0.018
Hipparcos
Catalog H HIP 90676 Proxy RAhms 18 30 05.12
DEdms +04 03 55.3 Vmag 6.66 VarFlag R Vmag H
RAdeg 277.521 DEdeg 4.06537 AstroRef Plx 1.17
CCDM 18301+0404 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual S M HIP
Theta Rho HD 170580 BD BD+03 3727
CD CP Dm number +03 3727 VIred 0.12
SpType B2V R SpType Coord arcsec 2000 183005.12+040355.3
Hipparcos 2
HIP 90676 Sn 5 So 0 Nc 1
RArad 4.843661029 DErad 0.0709540471 Plx 1.97 PmRA -0.61
PmDE -6.46 E RArad 0.31 E DErad 0.25 E Plx 0.37
E pmRA 0.41 E pmDE 0.35 Hpmag 6.7078 E Hpmag 0.0011
SHp 0.007 VA 0 BV 0.11 E BV 0
VI 0.12
CCDM
Ccdm 18301+0404 RComp Comp A Note1
Note2 Discov num DRAs -0.86 DDEs -4.9
R dRAs 10 Year Theta Rho
Obs 4 Vmag 6.5 Sp B5 PmNote *
PmRA 2 PmDE -7 Dm number +03 3727 Cat1 BD
Name2 +04 2340 Cat2 AGK2/3 HD 170580 M HD
ADS BDS A11399 M ADS BDS N IDS IDS 18251N0400A
HIC 90676
 
 
18301+0404 Ab
 
 
Coord arcsec 2000 183005.11+040355.3 Mag 9.6 Calc delta mag 2.9 Calc coord yes
 
 
18301+0404 B
 
 
Coord arcsec 2000 183005.31+040335.7 Mag 11.28 PmRA -2.00 PmDE -12.0
Calc delta mag 4.58 Calc coord yes
CCDM
Ccdm 18301+0404 RComp Comp B Note1
Note2 Discov num STF2322 DRAs -0.71 DDEs -23.7
R dRAs 10 Year 1828 Theta 168 Rho 20.1
Obs 12 Vmag 11.8 Sp PmNote *
PmRA -27 PmDE 7 Dm number Cat1
Name2 +04 2341 Cat2 AGK2/3 HD M HD
ADS BDS A11399 M ADS BDS N IDS IDS 18251N0400B
HIC
 
 
18301+0404 C
 
 
Coord arcsec 2000 183001.06+040423.6 Mag 12.79 PmRA -5.00 PmDE -4.0
Calc delta mag 6.09 Calc coord yes
CCDM
Ccdm 18301+0404 RComp Comp C Note1
Note2 Discov num STF2322 DRAs DDEs
R dRAs Year 1912 Theta 070 Rho 66.9
Obs 1 Vmag 12.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11399 M ADS BDS N IDS IDS 18251N0400C
HIC
 
 
18301+0404 D
 
 
Coord arcsec 2000 183003.48+040233.6 Mag 13.39 PmRA -3.00 PmDE -3.0
Calc delta mag 6.69 Calc coord yes
CCDM
Ccdm 18301+0404 RComp Comp D Note1
Note2 Discov num STF2322 DRAs DDEs
R dRAs Year 1912 Theta 194 Rho 85.2
Obs 1 Vmag 12.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A11399 M ADS BDS N IDS IDS 18251N0400D
HIC