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Doubles in session


Current system
18307+0431
STTA 170
HD 170699


Nearby doubles
15' : 18305+0416
A 583

29' : 18301+0404
STF2322AB

34' : 18291+0408
A 581AB

38' : 18286+0451
STTA168AB

42' : 18284+0407
J 521

46' : 18337+0426
GWP2786

49' : 18322+0514
GWP2781

51' : 18289+0514
CLV 1

52' : 18280+0400
BAL2494

52' : 18289+0515
LDS5237

59' : 18272+0404
FAR 20

62' : 18344+0405
TDT 940

63' : 18278+0344
ARY 58

64' : 18334+0341
HJ 861

68' : 18262+0435
TDT 866

71' : 18342+0341
ABT9001

75' : 18314+0545
TDT 925

76' : 18283+0537
TDT 897

76' : 18329+0539
SLE 495

76' : 18258+0409
RAO 607

77' : 18341+0530
J 1833

78' : 18356+0456
BU 643AB

80' : 18258+0359
J 462

81' : 18267+0337
BAL2493

82' : 18360+0452
J 2138

84' : 18357+0507
GRV 234



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.

18307+0431 STTA 170 (HD 170699)

 
 
18h 30m 41.17s +04° 30' 39.0" P.A. 5.00 sep 100.0 mag 6.97,8.75 Sp A2 dist. 120.77 pc (393.95 l.y.)
 
 
Coord 2000 18307+0431 Discov num STTA170 Comp Coord arcsec 2000 18 30 41.17 +04 30 39.0
Date first 1875 Date last 2015 Obs 23
Pa first 6 Pa last 4.7 P.A. Now (θ) 4.7°
Sep first 101.7 Sep last 100.042 Sep. Now (ρ) 100.042"
Mag pri 6.97 Mag sec 8.75 delta mag (ΔM) 1.78 Spectral class A2 (white)
Pri motion ra -011 Sec motion ra -017
Pri motion dec -006 Sec motion dec -015
Notes N (See Notes)
rPM=0.477
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 170699 Constellation Ophiuchus SAO 123585 HIP 90728
Tycho2 0454-00272-1 Gaia DR2 4284211465250502528 HD 170699 GC 25271
BD BD+04 3774 Distance 120.77 Distance ly 393.95
 
 
WDS 18307+0431 STTA 170 (HD 170699) : NOTES
 
 
discov_num notes refcode
STTA170 B is BD+04@3775.
Pair appears in an appendix list, not part of discoverer's regular
numbering sequence.
 
 
REFERENCES
 
 
refcode metd author reference
STTA (O. Struve DD - Appendix list) ...................
Stt1864 Ma - Struve, O. 1864MNRAS..24..149S
Stt1864 MNRAS 24, 149, 1864
Stt1866 orb - Struve, O. .
Stt1866 Bull. Imp. Acad. Sci. St. Petersburg, 1866
Stt1874 orb - Struve, O. .
Stt1874 Compte Rendus 79, 1467, 1874
Stt1875 orb - Struve, O. 1875MNRAS..35..367S
Stt1875 MNRAS 35, 367, 1875
Stt1878 Ma - Struve, O. 1878ObPul...9....1S
Stt1878 Pulkova Observations 9, 1, 1878
Stt1879A Ma - Struve, O. 1879Obs.....2..304G
Stt1879A cited by Gledhill (Obs 2, 304, 1879)
Stt1879B Ma - Struve, O. 1879Obs.....3..245G
Stt1879B cited by Gledhill (Obs 3, 245, 1879)
Stt1879C Ma - Struve, O. 1879Obs.....2..344G
Stt1879C cited by Gledhill (Obs 2, 344, 1879)
Stt1880A Ma - Struve, O. 1880Obs.....2..605H
Stt1880A cited by Hunt (Obs. 3, 605, 1880)
Stt1880B Ma - Struve, O. 1880Obs.....3..535G
Stt1880B cited by Gledhill (Obs 3, 535, 1880)
Stt1880C Ma - Struve, O. 1880MNRAS..40..497B
Stt1880C cited by Burnham (MNRAS 40, 497, 1880)
Stt1884A Ma - Struve, O. 1884AReg...22..216S
Stt1884A cited by Sadler (Astr. Register 22, 216, 1884)
Stt1893a Ma j Struve, O. 1893ObPul..10....1S
Stt1893a Pulkova Obs. Observations 10, 1, 1893
Stt1906A Ma - Struve, O. 1906MmRAS..56....1L
Stt1906A cited by Lewis (MemRAS 56, 1, 1906)
Stt1906B Ma j Struve, O. 1906QB821.B972.....
Stt1906B cited in BDS (Burnham Double Star Cat., 1906)
Stt1908A Ma - Struve, O. 1908MNRAS..68..465B
Stt1908A cited by Barnard (MNRAS 68, 465, 1908)
Stt1913A Ma - Struve, O. 1913QB811.B8.......
Stt1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Stt1914A Ma - Struve, O. 1914AN....198..107R
Stt1914A cited by Rabe (AN 198, 107, 1914)
Stt1932A Ma - Struve, O. 1932QB821.A43......
Stt1932A cited in ADS (Aitken Double Star Cat., 1932)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18307+0431 STTA170 2004 20 6 99.7 6.97 8.75 A2 NOD 183041.17+043039.0
18307+0431 STTA170 2010 22 5 100.2 6.97 8.75 A2 N 183041.17+043039.0
18307+0431 STTA170 2015 23 5 100.0 6.97 8.75 A2 N 183041.17+043039.0

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

 
 
WDS 18307+0431 STTA 170 (HD 170699) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18307+0431 STTA 170 (HD 170699) : MEASURES
 
 
No records found.

 
 
WDS 18307+0431 (HD 170699) : VIRTUAL EYEPIECE
 
 

18307+0431 STTA170A mag 6.97 Sp A2 18307+0431 STTA170B sep 100.0 P.A. 4.70 mag 8.75 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 18307+0431 (HD 170699) : ALADIN DSS IMAGE @ 18h 30m 41.17s +04° 30' 39.0"
 
 
 
 
WDS 18307+0431 STTA 170 (HD 170699) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

18307+0431 STTA170 distance=0' 18305+0416 A 583 distance=15' 18301+0404 CHR 72Aa,Ab distance=29' 18301+0404 STF2322AB distance=29' 18301+0404 STF2322AC distance=29' 18301+0404 STF2322AD distance=29' 18291+0408 A 581AB distance=34' 18291+0408 A 581AB,C distance=34' 18286+0451 STTA168AB distance=38' 18286+0451 STTA168AC distance=38' 18286+0451 SLE 179AD distance=38' 18286+0451 SLE 179AE distance=38' 18286+0451 SLE 179AF distance=38' 18284+0407 J 521 distance=42' 18337+0426 GWP2786 distance=46' 18322+0514 GWP2781 distance=49' 18289+0514 CLV 1 distance=51' 18280+0400 BAL2494 distance=52' 18289+0515 LDS5237 distance=52' 18272+0404 FAR 20 distance=59' 18344+0405 TDT 940 distance=62' 18278+0344 ARY 58 distance=63' 18334+0341 HJ 861 distance=64' 18262+0435 TDT 866 distance=68' 18342+0341 ABT9001 distance=71' 18314+0545 TDT 925 distance=75' 18283+0537 TDT 897 distance=76' 18329+0539 SLE 495 distance=76' 18258+0409 RAO 607 distance=76' 18341+0530 J 1833 distance=77' 18356+0456 BU 643AB distance=78' 18356+0456 STF2342AC distance=78' 18356+0456 FOX9031AD distance=78' 18258+0359 J 462 distance=80' 18267+0337 BAL2493 distance=81' 18360+0452 J 2138 distance=82' 18357+0507 GRV 234 distance=84' 18360+0506 A 354 distance=88' 18348+0534 CRT 28AB distance=89' 18348+0534 CRT 28AC distance=89' 18348+0534 CRT 28AD distance=89' 18348+0534 CRT 28AE distance=89' 18348+0534 CRT 28AF distance=89' 18348+0534 CRT 28AG distance=89' 18348+0534 CRT 28AH distance=89' 18348+0534 CRT 28AI distance=89' 18348+0534 CRT 28AJ distance=89' 18348+0534 CRT 28AK distance=89' 18348+0534 CRT 28AL distance=89' 18348+0534 CRT 28AM distance=89' 18348+0534 CRT 28AN distance=89' 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 18307+0431 STTA170 5 100.0
Show 18305+0416 A 583 265 0.2 15
Show 18301+0404 CHR 72 Aa,Ab 285 0.1 29
Show 18301+0404 STF2322 AB 172 19.8 29
Show 18301+0404 STF2322 AC 295 67.2 29
Show 18301+0404 STF2322 AD 197 85.3 29
Show 18291+0408 A 581 AB 140 0.4 34
Show 18291+0408 A 581 AB,C 227 10.2 34
Show 18286+0451 STTA168 AB 161 47.2 38
Show 18286+0451 STTA168 AC 217 244.2 38
Show 18286+0451 SLE 179 AD 210 251.7 38
Show 18286+0451 SLE 179 AE 226 304.1 38
Show 18286+0451 SLE 179 AF 233 288.5 38
Show 18284+0407 J 521 304 5.3 42
Show 18337+0426 GWP2786 211 213.7 46
Show 18322+0514 GWP2781 267 114.8 49
Show 18289+0514 CLV 1 355 40.8 51
Show 18280+0400 BAL2494 72 20.2 52
Show 18289+0515 LDS5237 329 6.0 52
Show 18272+0404 FAR 20 126 60.3 59
Show 18344+0405 TDT 940 340 0.4 62
Show 18278+0344 ARY 58 109 88.4 63
Show 18334+0341 HJ 861 179 20.0 64
Show 18262+0435 TDT 866 274 0.5 68
Show 18342+0341 ABT9001 339 20.0 71
Show 18314+0545 TDT 925 241 0.6 75
Show 18283+0537 TDT 897 169 0.5 76
Show 18329+0539 SLE 495 99 8.5 76
Show 18258+0409 RAO 607 181 3.6 76
Show 18341+0530 J 1833 35 6.9 77
Show 18356+0456 BU 643 AB 325 13.7 78
Show 18356+0456 STF2342 AC 33.6 78
Show 18356+0456 FOX9031 AD 323 35.3 78
Show 18258+0359 J 462 347 4.1 80
Show 18267+0337 BAL2493 95 18.1 81
Show 18360+0452 J 2138 140 5.2 82
Show 18357+0507 GRV 234 359 33.6 84
Show 18360+0506 A 354 9 4.6 88
Show 18348+0534 CRT 28 AB 28 2.8 89
Show 18348+0534 CRT 28 AC 178 5.2 89
Show 18348+0534 CRT 28 AD 2 5.9 89
Show 18348+0534 CRT 28 AE 242 6.0 89
Show 18348+0534 CRT 28 AF 163 6.1 89
Show 18348+0534 CRT 28 AG 54 7.1 89
Show 18348+0534 CRT 28 AH 310 7.4 89
Show 18348+0534 CRT 28 AI 183 7.8 89
Show 18348+0534 CRT 28 AJ 235 8.4 89
Show 18348+0534 CRT 28 AK 61 9.1 89
Show 18348+0534 CRT 28 AL 83 11.3 89
Show 18348+0534 CRT 28 AM 65 11.5 89
Show 18348+0534 CRT 28 AN 341 11.7 89

 
 
WDS 18307+0431 : COMPONENTS
 
 
  A
B pa=4.7°
sep=100.04"
 
 
18307+0431 A
 
 
Componente originario normalizzato AB Name HD 170699 Coord arcsec 2000 183041.17+043039.0 Mag 6.97
Spectral class A2 (white) PmRA -11.00 PmDE -6.0 SAO 123585
HIP 90728 Tycho2 0454-00272-1 HD 170699 GC 25271
BD BD+04 3774
Tycho2
Tycho2 0454-00272-1 Pflag RAmdeg 277.67153721 DEmdeg 4.51083471
PmRA -9.7 PmDE -4.2 E RAmdeg 4 E DEmdeg 4
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.58 EpDEm 1991.56
Num 14 Q RAmdeg 0.8 Q DEmdeg 0.5 Q pmRA 0.8
Q pmDE 0.5 BTmag 7.193 E BTmag 0.015 VTmag 6.971
E VTmag 0.010 Prox 999 TYC T HIP 90728
CCDM RAdeg 277.67155917 DEdeg 4.51084417 EpRA 1990 1.81
EpDE 1990 1.78 E RAdeg 3.6 E DEdeg 3.7 Posflg
Corr -0.4
SAO
SAO 123585 DelFlag RA1950 PmRA1950 -0.0014
DE1950 PmDE1950 0.006 Vmag 6.8 SpType A2
Double code Source 70 CatNum 25271 DM BD+04 3774
DMcomp BDsup HD 170699 M HD 0
GC 25271 RA1950rad 4.83547591 DE1950rad 0.07811014 PmRA2000 -0.0012
PmDE2000 0.005
Hipparcos
Catalog H HIP 90728 Proxy RAhms 18 30 41.17
DEdms +04 30 39.0 Vmag 6.95 VarFlag R Vmag H
RAdeg 277.672 DEdeg 4.51085 AstroRef Plx 8.07
CCDM 18307+0431 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 170699 BD BD+04 3774
CD CP Dm number +04 3774 VIred 0.21
SpType A2 R SpType Coord arcsec 2000 183041.17+043039.0
Hipparcos 2
HIP 90728 Sn 5 So 0 Nc 1
RArad 4.8462829691 DErad 0.07872912 Plx 8.28 PmRA -11.42
PmDE -5.53 E RArad 0.36 E DErad 0.3 E Plx 0.48
E pmRA 0.39 E pmDE 0.36 Hpmag 7.0151 E Hpmag 0.0012
SHp 0.011 VA 0 BV 0.211 E BV 0.006
VI 0.23
CCDM
Ccdm 18307+0431 RComp Comp A Note1
Note2 Discov num DRAs -0.85 DDEs -20.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.8 Sp A2 PmNote *
PmRA -11 PmDE 2 Dm number +04 3774 Cat1 BD
Name2 +04 2344 Cat2 AGK2/3 HD 170699 M HD
ADS BDS B 8604 M ADS BDS N IDS IDS 18257N0427A
HIC 90728
 
 
18307+0431 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 183041.72+043218.7 Mag 8.75 PmRA -17.00
PmDE -15.0 Tycho2 0454-00236-1 Calc delta mag 1.78 Calc coord yes
Tycho2
Tycho2 0454-00236-1 Pflag RAmdeg 277.67386583 DEmdeg 4.53857521
PmRA -15.9 PmDE -15.6 E RAmdeg 7 E DEmdeg 9
E pmRA 1.3 E pmDE 1.3 EpRAm 1991.32 EpDEm 1990.79
Num 9 Q RAmdeg 0.7 Q DEmdeg 0.7 Q pmRA 0.7
Q pmDE 0.7 BTmag 10.063 E BTmag 0.023 VTmag 8.754
E VTmag 0.012 Prox 999 TYC T HIP
CCDM RAdeg 277.67390194 DEdeg 4.53861111 EpRA 1990 1.85
EpDE 1990 1.75 E RAdeg 6.9 E DEdeg 8.9 Posflg
Corr -0.4
CCDM
Ccdm 18307+0431 RComp Comp B Note1
Note2 Discov num STT4170 DRAs -0.27 DDEs 79.2
R dRAs 10 Year 1875 Theta 005 Rho 101.3
Obs 9 Vmag 9.0 Sp PmNote *
PmRA -13 PmDE -5 Dm number +04 3775 Cat1 BD
Name2 +04 2345 Cat2 AGK2/3 HD M HD
ADS BDS B 8604 M ADS BDS N IDS IDS 18257N0427B
HIC