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Current system
19553-0644
STF 2597 AB
HD 188405


Nearby doubles
6' : 19557-0643
SCJ 23

46' : 19582-0700
RST5146

50' : 19582-0621
HDS2843

51' : 19573-0603
GWP2913

51' : 19521-0625
J 2287

51' : 19576-0608
BRT 496

53' : 19534-0600
STF2591

54' : 19532-0601
UC 4045

54' : 19585-0619
UC 4060

57' : 19567-0737
RST4646

57' : 19531-0558
GMC 25

64' : 19556-0747
TDT1855

68' : 19593-0612
RST5149

73' : 20001-0633
KPP 680

76' : 19587-0548
RST5147

90' : 20012-0704
TDT1915

91' : 19546-0814
STF2594AB

92' : 19510-0749
UC 4039

92' : 19521-0802
GWP2903

94' : 19498-0730
UC 4033

103' : 20019-0614
J 1694

105' : 20008-0749
RST4647

108' : 19514-0514
RST4645

108' : 19494-0746
RST4642

112' : 19541-0834
HJ 900

117' : 19595-0824
J 1691



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.

19553-0644 STF 2597 AB (HD 188405)

 
 
19h 55m 19.49s -06° 44' 04.7" P.A. 100.00 sep 0.6 mag 6.94,7.98 Sp F2V dist. 81.83 pc (266.93 l.y.)
 
 
Coord 2000 19553-0644 Discov num STF2597 Comp AB Coord arcsec 2000 19 55 19.49 -06 44 04.7
Date first 1826 Date last 2017 Obs 143
Pa first 92 Pa last 100.1 P.A. Now (θ) 100.1°
Sep first 1.9 Sep last 0.647 Sep. Now (ρ) 0.647"
Mag pri 6.94 Mag sec 7.98 delta mag (ΔM) 1.04 Spectral class F2V (yellow-white)
Pri motion ra +030 Sec motion ra
Pri motion dec -062 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
19553-0644 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 188405 143911 19 55 19 -06 44 05 STF 2597 AB 2017 143 100 0.6 6.94 7.98 1.04 Y <===
Show 143911 19 55 19 -06 44 05 BOW 8 AC -1 0 -1 -1.0 6.94
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 188405 Constellation Aquila SAO 143911 HIP 98038
Tycho2 5159-02691-1 Gaia DR2 4196081588186245504 HD 188405 HR 7599
GC 27580 ADS 13104 BD BD-07 5102 Distance 81.83
Distance ly 266.93
 
 
ORBITAL ELEMENTS
 
 
Period (P)425y± 22 Periastron (T)1974.28y± 0.23 Semi-major axis (a)1.085a± 0.024
Eccentricity (e)0.9414± 0.002 Inclination (i)103.05°± 0.84 Longitude of periastron (ω)327.9°± 1.7
Node (Ω)264.03°± 0.77 Notesn ReferenceHrt1996a
Equinox2000 Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 104.1 0.445
2001 103.7 0.461
2002 103.4 0.478
2003 103.1 0.494
2004 102.8 0.510
2005 102.5 0.525
2006 102.2 0.541
2007 102.0 0.556
2008 101.7 0.571
2009 101.5 0.586
2010 101.3 0.601
2011 101.1 0.616
2012 100.9 0.630
2013 100.7 0.644
2014 100.5 0.658
2015 100.3 0.672
2016 100.2 0.686
2017 100.0 0.700
2018 99.9 0.713
2019 99.7 0.727
2020 99.6 0.740
2021 99.4 0.753
2022 99.3 0.766
2023 99.2 0.779
2024 99.1 0.791
2025 98.9 0.804
2026 98.8 0.816
2027 98.7 0.829
2028 98.6 0.841
2029 98.5 0.853
2030 98.4 0.865


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds19553-0644a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 19553-0644 STF 2597 AB (HD 188405) : NOTES
 
 
discov_num notes refcode
STF2597 Typo in publication of 1997.6001 measure; theta value corrected by
author. TtB2000
 
 
REFERENCES
 
 
refcode metd author reference
Hrt1996a Sc j Hartkopf, W.I., Mason, B.D., & McAlister, H.A. 1996AJ....111..370H
Hrt1996a +orb AJ 111, 370, 1996
TtB2000 Ac j ten Brummelaar, T.A., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr., 2000AJ....119.2403T
TtB2000 Turner, N.H., Hartkopf, W.I., & Bagnuolo, W.G., Jr.
TtB2000 AJ 119, 2403, 2000 (magnitude differences from Mt. Wilson AO)
 
 
DISCOVERER
 
 
idgroup discov author
1 BOW Bowyer, W.M.
46 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
19553-0644 STF2597 AB 2006 133 102 0.5 6.94 7.98 F2V NOD 195519.49-064404.7
19553-0644 STF2597 AB 2008 135 101 0.6 6.94 7.98 F2V NOD 195519.49-064404.7
19553-0644 STF2597 AB 2010 138 101 0.6 6.94 7.98 F2V NOD 195519.49-064404.7
19553-0644 STF2597 AB 2014 139 99 0.7 6.94 7.98 F2V NO 195519.49-064404.7
19553-0644 STF2597 AB 2017 142 101 0.6 6.94 7.98 F2V NO 195519.49-064404.7

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

 
 
WDS 19553-0644 STF 2597 AB (HD 188405) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19553-0644 STF 2597 AB (HD 188405) : MEASURES
 
 
No records found.

 
 
WDS 19553-0644 (HD 188405) : VIRTUAL EYEPIECE
 
 

19553-0644 STF2597A mag 6.94 Sp F2V 19553-0644 STF2597B sep 0.6 P.A. 100.20 mag 7.98 19553-0644 BOW 8C 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 19553-0644 (HD 188405) : ALADIN DSS IMAGE @ 19h 55m 19.49s -06° 44' 04.7"
 
 
 
 
WDS 19553-0644 STF 2597 AB (HD 188405) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

19553-0644 STF2597AB distance=0' 19557-0643 SCJ 23 distance=6' 19582-0700 RST5146 distance=46' 19582-0621 HDS2843 distance=50' 19573-0603 GWP2913 distance=51' 19521-0625 J 2287 distance=51' 19576-0608 BRT 496 distance=51' 19534-0600 STF2591 distance=53' 19532-0601 UC 4045 distance=54' 19585-0619 UC 4060 distance=54' 19567-0737 RST4646 distance=57' 19531-0558 GMC 25 distance=57' 19556-0747 TDT1855 distance=64' 19593-0612 RST5149 distance=68' 20001-0633 KPP 680 distance=73' 19587-0548 RST5147 distance=76' 20012-0704 TDT1915 distance=90' 19546-0814 STF2594AB distance=91' 19510-0749 UC 4039 distance=92' 19521-0802 GWP2903 distance=92' 19498-0730 UC 4033 distance=94' 20019-0614 J 1694 distance=103' 20008-0749 RST4647 distance=105' 19514-0514 RST4645 distance=108' 19494-0746 RST4642 distance=108' 19541-0834 HJ 900 distance=112' 19595-0824 J 1691 distance=117' 20031-0617 SKF 443 distance=119' 19508-0502 UC 4036 distance=123' 19516-0455 UC 4043 distance=123' 20009-0826 RST4648 distance=132' 19591-0443 LDS4826 distance=133' 19463-0645 UC 4022 distance=135' 19539-0858 RST4050 distance=136' 19514-0436 A 43AB distance=141' 19514-0436 A 43AC distance=141' 20000-0439 J 1692 distance=143' 19459-0615 GWP2890 distance=144' 19579-0904 BU 1475AB distance=145' 19579-0904 HDO 155AC distance=145' 19594-0432 CVN 107 distance=146' 19579-0904 BU 1475CD distance=146' 19460-0735 HDS2808 distance=149' 19471-0809 A 108 distance=149' 20046-0744 LDS4829 distance=151' 19448-0627 TDT1702 distance=158' 20006-0422 UC 4062 distance=163' 20054-0536 RST5151 distance=166' 20006-0911 BRT 554 distance=167' 20006-0417 KPP2075 distance=168' 19464-0459 GWP2893 distance=170' 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 19553-0644 STF2597 AB 100 0.6
Show 19553-0644 BOW 8 AC -1 -1.0
Show 19557-0643 SCJ 23 25 36.5 6
Show 19582-0700 RST5146 53 3.7 46
Show 19582-0621 HDS2843 172 0.3 50
Show 19573-0603 GWP2913 178 8.8 51
Show 19521-0625 J 2287 170 3.3 51
Show 19576-0608 BRT 496 340 3.7 51
Show 19534-0600 STF2591 106 29.4 53
Show 19532-0601 UC 4045 12 68.1 54
Show 19585-0619 UC 4060 164 22.9 54
Show 19567-0737 RST4646 195 4.6 57
Show 19531-0558 GMC 25 338 32.3 57
Show 19556-0747 TDT1855 41 1.5 64
Show 19593-0612 RST5149 323 1.5 68
Show 20001-0633 KPP 680 149 6.1 73
Show 19587-0548 RST5147 319 5.5 76
Show 20012-0704 TDT1915 226 0.5 90
Show 19546-0814 STF2594 AB 171 36.3 91
Show 19510-0749 UC 4039 169 10.3 92
Show 19521-0802 GWP2903 49 119.6 92
Show 19498-0730 UC 4033 6 44.5 94
Show 20019-0614 J 1694 275 6.4 103
Show 20008-0749 RST4647 81 0.5 105
Show 19514-0514 RST4645 141 1.1 108
Show 19494-0746 RST4642 260 0.4 108
Show 19541-0834 HJ 900 75 46.5 112
Show 19595-0824 J 1691 222 6.3 117
Show 20031-0617 SKF 443 176 5.1 119
Show 19508-0502 UC 4036 55 3.8 123
Show 19516-0455 UC 4043 135 63.0 123
Show 20009-0826 RST4648 111 3.1 132
Show 19591-0443 LDS4826 161 6.2 133
Show 19463-0645 UC 4022 29 48.6 135
Show 19539-0858 RST4050 154 0.9 136
Show 19514-0436 A 43 AB 278 2.0 141
Show 19514-0436 A 43 AC 225 27.2 141
Show 20000-0439 J 1692 24 7.2 143
Show 19459-0615 GWP2890 153 254.9 144
Show 19579-0904 BU 1475 AB 113 10.4 145
Show 19579-0904 HDO 155 AC 119 115.1 145
Show 19594-0432 CVN 107 25 4.5 146
Show 19579-0904 BU 1475 CD 163 4.9 146
Show 19460-0735 HDS2808 175 0.1 149
Show 19471-0809 A 108 107 0.3 149
Show 20046-0744 LDS4829 322 73.0 151
Show 19448-0627 TDT1702 258 0.5 158
Show 20006-0422 UC 4062 38 23.5 163
Show 20054-0536 RST5151 34 0.4 166
Show 20006-0911 BRT 554 25 2.6 167
Show 20006-0417 KPP2075 246 16.7 168

 
 
WDS 19553-0644 : COMPONENTS
 
 
  A B
B pa=100.2°
sep=0.64"
 
C pa=0.0°
sep=0.00"
pa=280.2°
sep=0.64"
 
 
19553-0644 A
 
 
Name HD 188405 Coord arcsec 2000 195519.49-064404.7 Mag 6.94 Spectral class F2V (yellow-white)
PmRA 30.00 PmDE -62.0 SAO 143911 HIP 98038
Tycho2 5159-02691-1 HD 188405 HR 7599 GC 27580
ADS 13104 BD BD-07 5102
Tycho2
Tycho2 5159-02691-1 Pflag RAmdeg 298.83126265 DEmdeg -6.73478650
PmRA 21.5 PmDE -62.2 E RAmdeg 4 E DEmdeg 5
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.43 EpDEm 1991.07
Num 11 Q RAmdeg 1.5 Q DEmdeg 1.2 Q pmRA 1.3
Q pmDE 1.2 BTmag 6.961 E BTmag 0.016 VTmag 6.555
E VTmag 0.010 Prox 999 TYC T HIP 98038
CCDM AB RAdeg 298.83121278 DEdeg -6.73463972 EpRA 1990 1.71
EpDE 1990 1.50 E RAdeg 4.3 E DEdeg 5.0 Posflg P
Corr -0.1
SAO
SAO 143911 DelFlag RA1950 PmRA1950 0.0022
DE1950 PmDE1950 -0.045 Vmag 6.5 SpType F2
Double code Source 70 CatNum 27580 DM BD-07 5102
DMcomp BDsup HD 188405 M HD 0
GC 27580 RA1950rad 5.20389205 DE1950rad -0.11984295 PmRA2000 0.0024
PmDE2000 -0.046
Hipparcos
Catalog H HIP 98038 Proxy H RAhms 19 55 19.49
DEdms -06 44 04.7 Vmag 6.49 VarFlag R Vmag G
RAdeg 298.831 DEdeg -6.73464 AstroRef * Plx 11.67
CCDM 19553-0644 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 112 Rho 0.272 HD 188405 BD BD-07 5102
CD CP Dm number -07 5102 VIred 0.46
SpType F2V R SpType Coord arcsec 2000 195519.49-064404.7
Hipparcos 2
HIP 98038 Sn 55 So 3 Nc 2
RArad 5.2155885274 DErad -0.1175416016 Plx 12.22 PmRA 16.58
PmDE -60.18 E RArad 0.81 E DErad 0.57 E Plx 0.84
E pmRA 1.25 E pmDE 0.88 Hpmag 6.5881 E Hpmag 0.0013
SHp 0.007 VA 0 BV 0.391 E BV 0.002
VI 0.46
CCDM
Ccdm 19553-0644 RComp Comp A Note1
Note2 Discov num DRAs 1.55 DDEs -3.5
R dRAs 10 Year Theta Rho
Obs 2 Vmag 6.7 Sp F2 PmNote *
PmRA 33 PmDE -45 Dm number -07 5102 Cat1 BD
Name2 143911 Cat2 SAO HD 188405 M HD
ADS BDS A13104 M ADS BDS N IDS IDS 19500S0700A
HIC 98038
 
 
19553-0644 B
 
 
Coord arcsec 2000 195519.53-064404.8 Mag 7.98 Calc delta mag 1.04 Calc coord yes
CCDM
Ccdm 19553-0644 RComp Comp B Note1
Note2 Discov num STF2597 DRAs DDEs
R dRAs Year 1959 Theta 082 Rho 0.6
Obs 99 Vmag 7.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A13104 M ADS BDS N IDS IDS 19500S0700B
HIC 98038
 
 
19553-0644 C
 
 
Coord arcsec 2000 195519.49-064404.7 Calc delta mag 6.94 Calc coord yes