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Doubles in session


Current system
19445+0459
STF 2566
HD 186490


Nearby doubles
11' : 19452+0500
A 373

16' : 19440+0512
SKF 282

19' : 19441+0442
DAM 177

19' : 19456+0450
HWE 51

19' : 19432+0448
J 1290

21' : 19443+0437
J 3254

22' : 19431+0502
DAM 174

24' : 19429+0502
HWE 50

28' : 19453+0523
J 2998AB

31' : 19441+0528
J 2558

34' : 19427+0518
TDT1663

34' : 19420+0453
GCB 47

35' : 19467+0510
A 374

37' : 19442+0536
J 1861

40' : 19469+0514
J 3004AB

44' : 19419+0517
TDT1648

49' : 19416+0441
J 1288

49' : 19460+0415
BU 468AB

52' : 19434+0410
STT 381

56' : 19417+0423
TDT1642

59' : 19421+0545
HEI 876

61' : 19481+0523
HJ 2897AB

65' : 19449+0602
J 1863

66' : 19481+0421
DAM 178

66' : 19480+0423
J 2279

66' : 19481+0423
J 2280



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.

19445+0459 STF 2566 (HD 186490)

 
 
19h 44m 31.65s +04° 58' 46.3" P.A. 232.00 sep 26.9 mag 7.73,10.15 Sp K5 dist. 403.23 pc (1315.34 l.y.)
 
 
Coord 2000 19445+0459 Discov num STF2566 Comp Coord arcsec 2000 19 44 31.65 +04 58 46.3
Date first 1830 Date last 2015 Obs 15
Pa first 237 Pa last 231.8 P.A. Now (θ) 231.8°
Sep first 25.0 Sep last 26.934 Sep. Now (ρ) 26.934"
Mag pri 7.73 Mag sec 10.15 delta mag (ΔM) 2.42 Spectral class K5 (yellow-orange)
Pri motion ra +013 Sec motion ra +005
Pri motion dec +011 Sec motion dec -004
Notes
rPM=0.998
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 186490 Constellation Aquila SAO 125008 HIP 97136
Tycho2 0487-01887-1 Gaia DR2 4290632716243801600 HD 186490 GC 27314
BD BD+04 4210 Distance 403.23 Distance ly 1315.34
 
 
WDS 19445+0459 STF 2566 (HD 186490) : NOTES
 
 
No records found.

 
 
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
19445+0459 STF2566 2000 10 232 27.0 7.73 10.15 K5 D 194431.65+045846.3
19445+0459 STF2566 2010 11 233 26.7 7.73 10.15 K5 D 194431.65+045846.3
19445+0459 STF2566 2015 15 232 26.9 7.73 10.15 K5 194431.65+045846.3

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

 
 
WDS 19445+0459 STF 2566 (HD 186490) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19445+0459 STF 2566 (HD 186490) : MEASURES
 
 
No records found.

 
 
WDS 19445+0459 (HD 186490) : VIRTUAL EYEPIECE
 
 

19445+0459 STF2566A mag 7.73 Sp K5 19445+0459 STF2566B sep 26.9 P.A. 231.70 mag 10.15 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 19445+0459 (HD 186490) : ALADIN DSS IMAGE @ 19h 44m 31.65s +04° 58' 46.3"
 
 
 
 
WDS 19445+0459 STF 2566 (HD 186490) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19445+0459 STF2566 distance=0' 19452+0500 A 373 distance=11' 19440+0512 SKF 282 distance=16' 19441+0442 DAM 177 distance=19' 19456+0450 HWE 51 distance=19' 19432+0448 J 1290 distance=19' 19443+0437 J 3254 distance=21' 19431+0502 DAM 174 distance=22' 19429+0502 HWE 50 distance=24' 19453+0523 J 2998AB distance=28' 19453+0523 J 2998AC distance=28' 19441+0528 J 2558 distance=31' 19427+0518 TDT1663 distance=34' 19420+0453 GCB 47 distance=34' 19467+0510 A 374 distance=35' 19442+0536 J 1861 distance=37' 19469+0514 J 3004AB distance=40' 19469+0514 FYM 276AC distance=40' 19469+0514 FYM 276AD distance=40' 19419+0517 TDT1648 distance=44' 19416+0441 J 1288 distance=49' 19460+0415 BU 468AB distance=49' 19460+0415 VSP 59Aa,Ab distance=49' 19464+0418 BU 1301A,BC distance=50' 19464+0418 BU 1301BC distance=50' 19434+0410 STT 381 distance=52' 19417+0423 TDT1642 distance=56' 19421+0545 HEI 876 distance=59' 19481+0523 HJ 2897AB distance=61' 19481+0523 DAM 180AC distance=61' 19449+0602 J 1863 distance=65' 19481+0421 DAM 178 distance=66' 19480+0423 J 2279 distance=66' 19481+0423 J 2280 distance=66' 19482+0422 DAM 179 distance=67' 19446+0350 A 2389 distance=69' 19406+0434 J 3327 distance=70' 19493+0440 WOL 7AB distance=74' 19493+0440 HTP 41AC distance=74' 19493+0440 HTP 41AD distance=74' 19493+0440 HTP 41AE distance=74' 19493+0440 HTP 41AF distance=74' 19493+0440 HTP 41AG distance=74' 19493+0440 HTP 41AH distance=74' 19493+0440 HTP 41AI distance=74' 19493+0440 HTP 41AJ distance=74' 19493+0440 HTP 41AK distance=74' 19493+0440 HTP 41AL distance=74' 19493+0440 HTP 41AM distance=74' 19493+0440 HTP 41AN distance=74' 19493+0440 HTP 41AO distance=74' 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 19445+0459 STF2566 232 26.9
Show 19452+0500 A 373 10 2.8 11
Show 19440+0512 SKF 282 244 13.7 16
Show 19441+0442 DAM 177 226 5.5 19
Show 19456+0450 HWE 51 200 18.8 19
Show 19432+0448 J 1290 214 2.5 19
Show 19443+0437 J 3254 318 5.8 21
Show 19431+0502 DAM 174 246 7.8 22
Show 19429+0502 HWE 50 16 2.7 24
Show 19453+0523 J 2998 AB 88 6.3 28
Show 19453+0523 J 2998 AC 192 6.3 28
Show 19441+0528 J 2558 129 3.5 31
Show 19427+0518 TDT1663 293 0.8 34
Show 19420+0453 GCB 47 103 5.9 34
Show 19467+0510 A 374 80 4.6 35
Show 19442+0536 J 1861 22 7.8 37
Show 19469+0514 J 3004 AB 328 5.8 40
Show 19469+0514 FYM 276 AC 133 19.2 40
Show 19469+0514 FYM 276 AD 43 18.5 40
Show 19419+0517 TDT1648 196 0.7 44
Show 19416+0441 J 1288 337 3.9 49
Show 19460+0415 BU 468 AB 181 10.2 49
Show 19460+0415 VSP 59 Aa,Ab 192 0.3 49
Show 19464+0418 BU 1301 A,BC 63 57.0 50
Show 19464+0418 BU 1301 BC 335 0.7 50
Show 19434+0410 STT 381 2 14.6 52
Show 19417+0423 TDT1642 78 0.5 56
Show 19421+0545 HEI 876 146 0.8 59
Show 19481+0523 HJ 2897 AB 332 8.1 61
Show 19481+0523 DAM 180 AC 30 7.9 61
Show 19449+0602 J 1863 115 6.9 65
Show 19481+0421 DAM 178 309 3.8 66
Show 19480+0423 J 2279 349 5.7 66
Show 19481+0423 J 2280 149 4.9 66
Show 19482+0422 DAM 179 269 4.2 67
Show 19446+0350 A 2389 127 0.9 69
Show 19406+0434 J 3327 347 5.0 70
Show 19493+0440 WOL 7 AB 184 3.6 74
Show 19493+0440 HTP 41 AC 190 1.0 74
Show 19493+0440 HTP 41 AD 72 5.7 74
Show 19493+0440 HTP 41 AE 39 7.9 74
Show 19493+0440 HTP 41 AF 231 7.8 74
Show 19493+0440 HTP 41 AG 56 10.1 74
Show 19493+0440 HTP 41 AH 163 12.7 74
Show 19493+0440 HTP 41 AI 285 15.3 74
Show 19493+0440 HTP 41 AJ 219 17.0 74
Show 19493+0440 HTP 41 AK 329 19.0 74
Show 19493+0440 HTP 41 AL 210 19.4 74
Show 19493+0440 HTP 41 AM 246 20.1 74
Show 19493+0440 HTP 41 AN 226 22.8 74
Show 19493+0440 HTP 41 AO 124 24.8 74

 
 
WDS 19445+0459 : COMPONENTS
 
 
  A
B pa=231.7°
sep=26.87"
 
 
19445+0459 A
 
 
Componente originario normalizzato AB Name HD 186490 Coord arcsec 2000 194431.65+045846.3 Mag 7.73
Spectral class K5 (yellow-orange) PmRA 13.00 PmDE 11.0 SAO 125008
HIP 97136 Tycho2 0487-01887-1 HD 186490 GC 27314
BD BD+04 4210
Tycho2
Tycho2 0487-01887-1 Pflag RAmdeg 296.13185659 DEmdeg 4.97952026
PmRA 12.9 PmDE 11.9 E RAmdeg 8 E DEmdeg 9
E pmRA 0.9 E pmDE 0.9 EpRAm 1989.67 EpDEm 1989.38
Num 15 Q RAmdeg 1.0 Q DEmdeg 0.8 Q pmRA 1.0
Q pmDE 0.9 BTmag 9.688 E BTmag 0.030 VTmag 7.731
E VTmag 0.013 Prox 264 TYC T HIP 97136
CCDM RAdeg 296.13182750 DEdeg 4.97949111 EpRA 1990 1.68
EpDE 1990 1.50 E RAdeg 7.5 E DEdeg 8.9 Posflg
Corr -0.2
SAO
SAO 125008 DelFlag RA1950 PmRA1950 0.0005
DE1950 PmDE1950 0.01 Vmag 7.7 SpType K5
Double code Source 70 CatNum 27314 DM BD+04 4210
DMcomp BDsup HD 186490 M HD 0
GC 27314 RA1950rad 5.15766443 DE1950rad 0.08478813 PmRA2000 0.0007
PmDE2000 0.008
Hipparcos
Catalog H HIP 97136 Proxy RAhms 19 44 31.64
DEdms +04 58 46.1 Vmag 7.55 VarFlag R Vmag H
RAdeg 296.132 DEdeg 4.97948 AstroRef Plx 2.96
CCDM 19445+0459 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 186490 BD BD+04 4210
CD CP Dm number +04 4210 VIred 1.73
SpType K5 R SpType Coord arcsec 2000 194431.64+045846.1
Hipparcos 2
HIP 97136 Sn 5 So 0 Nc 1
RArad 5.1684753836 DErad 0.0869083841 Plx 2.48 PmRA 12.86
PmDE 10.75 E RArad 1 E DErad 0.74 E Plx 1.07
E pmRA 1.58 E pmDE 1.2 Hpmag 7.6677 E Hpmag 0.0012
SHp 0.012 VA 0 BV 1.569 E BV 0.028
VI 1.59
CCDM
Ccdm 19445+0459 RComp Comp A Note1
Note2 Discov num DRAs 1.65 DDEs -13.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.8 Sp K5 PmNote *
PmRA 15 PmDE 21 Dm number +04 4210 Cat1 BD
Name2 +04 2594 Cat2 AGK2/3 HD 186490 M HD
ADS BDS B 9557 M ADS BDS N IDS IDS 19396N0444A
HIC 97136
 
 
19445+0459 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 194430.24+045829.6 Mag 10.15 PmRA 5.00
PmDE -4.0 Tycho2 0487-00674-1 Calc delta mag 2.42 Calc coord yes
Tycho2
Tycho2 0487-00674-1 Pflag RAmdeg 296.12596781 DEmdeg 4.97504267
PmRA 4.8 PmDE 1.1 E RAmdeg 44 E DEmdeg 56
E pmRA 2.0 E pmDE 2.0 EpRAm 1983.52 EpDEm 1978.55
Num 4 Q RAmdeg 0.5 Q DEmdeg 0.9 Q pmRA 0.4
Q pmDE 0.9 BTmag 12.041 E BTmag 0.196 VTmag 10.145
E VTmag 0.061 Prox 264 TYC HIP
CCDM RAdeg 296.12595278 DEdeg 4.97504861 EpRA 1990 1.71
EpDE 1990 1.52 E RAdeg 52.0 E DEdeg 68.2 Posflg
Corr 0.0
CCDM
Ccdm 19445+0459 RComp Comp B Note1
Note2 Discov num STF2566 DRAs DDEs
R dRAs Year 1879 Theta 234 Rho 25.2
Obs 3 Vmag 10.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 9557 M ADS BDS N N IDS IDS 19396N0444B
HIC