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Current system
17457+1743
STF 2205
HD 161585


Nearby doubles
9' : 17453+1750
TDT 488

21' : 17471+1742
STF2215

25' : 17440+1738
TOB 265

27' : 17438+1742
TOB 264

35' : 17433+1741
STH 4

36' : 17433+1751
BPM 696

37' : 17483+1740
BPM 700

42' : 17484+1727
ARG 79

45' : 17429+1724
TOB 266

46' : 17487+1728
DAM 280

53' : 17439+1829
TDT 480

54' : 17457+1650
A 2092

56' : 17476+1831
UC 3409

67' : 17503+1737
BPM 702

68' : 17421+1707
LDS1001

69' : 17477+1641
UC 3411

71' : 17428+1646
BPMA 51

79' : 17445+1900
STF2206

83' : 17513+1723
TDT 536

84' : 17489+1633
TDT 519

85' : 17510+1821
HDS2517

90' : 17478+1619
HEI 254

97' : 17524+1733
BPM 703

100' : 17411+1628
A 2091

102' : 17524+1708
TDT 550

105' : 17444+1600
LSC 75



Selections
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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.

17457+1743 STF 2205 (HD 161585)

 
 
17h 45m 41.03s +17° 43' 00.7" P.A. 21.00 sep 0.8 mag 9.37,9.59 Sp K0.2V+K2V
 
 
Coord 2000 17457+1743 Discov num STF2205 Comp Coord arcsec 2000 17 45 41.03 +17 43 00.7
Date first 1830 Date last 2021 Obs 199
Pa first 291 Pa last 20.7 P.A. Now (θ) 20.7°
Sep first 2.5 Sep last 0.793 Sep. Now (ρ) 0.793"
Mag pri 9.37 Mag sec 9.59 delta mag (ΔM) 0.22 Spectral class K0.2V+K2V (yellow-orange/yellow-orange)
Pri motion ra -025 Sec motion ra -025
Pri motion dec +074 Sec motion dec +074
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 161585 Constellation Hercules SAO 103085 Tycho2 1556-00743-1
Gaia DR2 4551173541294403328 HD 161585 GC 24106 ADS 10769
 
 
ORBITAL ELEMENTS
 
 
Period (P)600.4431y± 248.9038 Periastron (T)2030.0111y± 2.6119 Semi-major axis (a)2.58966a± 0.53544
Eccentricity (e)0.81961± 0.06253 Inclination (i)54.896°± 5.241 Longitude of periastron (ω)78.875°± 5.199
Node (Ω)19.079°± 15.989 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 352.0 1.221
2001 352.9 1.204
2002 353.9 1.186
2003 354.8 1.168
2004 355.8 1.149
2005 356.8 1.129
2006 357.9 1.109
2007 359.0 1.088
2008 0.1 1.067
2009 1.3 1.044
2010 2.5 1.021
2011 3.9 0.997
2012 5.2 0.971
2013 6.7 0.945
2014 8.2 0.917
2015 9.8 0.888
2016 11.6 0.858
2017 13.4 0.826
2018 15.4 0.792
2019 17.7 0.756
2020 20.1 0.718
2021 22.8 0.678
2022 25.9 0.636
2023 29.4 0.591
2024 33.5 0.544
2025 38.4 0.495
2026 44.5 0.444
2027 52.0 0.394
2028 61.8 0.346
2029 74.3 0.306
2030 90.0 0.279


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


 
  


wds17457%2B1743c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 17457+1743 STF 2205 (HD 161585) : NOTES
 
 
discov_num notes refcode
STF2205 A premature orbit has been computed.
 
 
REFERENCES
 
 
refcode metd author reference
Izm2019 orb u Izmailov, I.S. 2019AstL...45...30I
Izm2019 Ast. Lett. 45, 30, 2019
Izm2019 (Orbital elements from weighted solutions used when available (Table 2),
Izm2019 unweighted elements (Table 1) used for remaining 29 systems.)
 
 
DISCOVERER
 
 
idgroup discov author
1 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
17457+1743 STF2205 2007 201 359 1.1 9.37 9.59 K0 NO 174541.03+174300.7
17457+1743 STF2205 2009 206 2 1.0 9.37 9.59 K0 NO 174541.03+174300.7
17457+1743 STF2205 2010 209 3 1.0 9.37 9.59 K0 NO 174541.03+174300.7
17457+1743 STF2205 2011 208 5 1.0 9.37 9.59 K0 NO 174541.03+174300.7
17457+1743 STF2205 2013 186 7 0.9 9.37 9.59 K0 NO 174541.03+174300.7
17457+1743 STF2205 2015 188 9 0.9 9.37 9.59 K0 NO 174541.03+174300.7
17457+1743 STF2205 2016 189 11 0.9 9.37 9.59 K0 NO 174541.03+174300.7
17457+1743 STF2205 2020 195 17 0.7 9.37 9.59 K0 NO 174541.03+174300.7
17457+1743 STF2205 2021 199 21 0.8 9.37 9.59 K0.2V+K2V NO 174541.03+174300.7

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

 
 
WDS 17457+1743 STF 2205 (HD 161585) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 17457+1743 STF 2205 (HD 161585) : MEASURES
 
 
No records found.

 
 
WDS 17457+1743 (HD 161585) : VIRTUAL EYEPIECE
 
 

17457+1743 STF2205A mag 9.37 Sp K0.2V 17457+1743 STF2205B sep 0.8 P.A. 19.80 mag 9.59 Sp K2V 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 17457+1743 (HD 161585) : ALADIN DSS IMAGE @ 17h 45m 41.03s +17° 43' 00.7"
 
 
 
 
WDS 17457+1743 STF 2205 (HD 161585) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

17457+1743 STF2205 distance=1' 17453+1750 TDT 488 distance=9' 17471+1742 STF2215 distance=21' 17440+1738 TOB 265 distance=25' 17438+1742 TOB 264 distance=27' 17433+1741 STH 4 distance=35' 17433+1751 BPM 696 distance=36' 17483+1740 BPM 700 distance=37' 17484+1727 ARG 79 distance=42' 17429+1724 TOB 266 distance=45' 17487+1728 DAM 280 distance=46' 17439+1829 TDT 480 distance=53' 17457+1650 A 2092 distance=54' 17476+1831 UC 3409 distance=56' 17503+1737 BPM 702 distance=67' 17421+1707 LDS1001 distance=68' 17477+1641 UC 3411 distance=69' 17428+1646 BPMA 51 distance=71' 17445+1900 STF2206 distance=79' 17513+1723 TDT 536 distance=83' 17489+1633 TDT 519 distance=84' 17510+1821 HDS2517 distance=85' 17478+1619 HEI 254 distance=90' 17524+1733 BPM 703 distance=97' 17411+1628 A 2091 distance=100' 17524+1708 TDT 550 distance=102' 17444+1600 LSC 75 distance=105' 17456+1553 HU 1287 distance=110' 17478+1557 TOB 268AB distance=111' 17478+1557 TOB 268AC distance=111' 17387+1834 BUP 177AB distance=112' 17387+1834 BUP 177AC distance=112' 17387+1840 SLO 1AB distance=116' 17387+1840 SLO 1AC distance=116' 17530+1655 CRC 27Aa,Ab distance=116' 17530+1655 CRC 27AB distance=116' 17387+1834 BUP 177BC distance=116' 17376+1747 BPM 690 distance=116' 17388+1643 BPM 692 distance=116' 17387+1834 OSO 82CD distance=118' 17420+1557 BU 1251AB distance=119' 17420+1557 BU 1251AC distance=119' 17478+1546 TOB 267 distance=121' 17537+1702 BPM 706 distance=123' 17483+1547 J 753AB distance=123' 17483+1547 FOX 209AC distance=123' 17471+1945 UC 3405AB distance=124' 17471+1945 UC 3405AC distance=124' 17372+1809 TDT 436 distance=124' 17433+1534 KPP4055 distance=134' 17403+1553 TVB 296 distance=135' 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 17457+1743 STF2205 21 0.8 1
Show 17453+1750 TDT 488 1 0.7 9
Show 17471+1742 STF2215 249 0.4 21
Show 17440+1738 TOB 265 259 15.1 25
Show 17438+1742 TOB 264 175 17.3 27
Show 17433+1741 STH 4 49 15.3 35
Show 17433+1751 BPM 696 335 109.5 36
Show 17483+1740 BPM 700 143 67.0 37
Show 17484+1727 ARG 79 119 30.1 42
Show 17429+1724 TOB 266 80 24.0 45
Show 17487+1728 DAM 280 177 5.6 46
Show 17439+1829 TDT 480 303 1.0 53
Show 17457+1650 A 2092 337 0.9 54
Show 17476+1831 UC 3409 235 19.2 56
Show 17503+1737 BPM 702 294 118.8 67
Show 17421+1707 LDS1001 116 42.8 68
Show 17477+1641 UC 3411 258 13.4 69
Show 17428+1646 BPMA 51 170 128.6 71
Show 17445+1900 STF2206 248 0.9 79
Show 17513+1723 TDT 536 61 1.1 83
Show 17489+1633 TDT 519 221 1.0 84
Show 17510+1821 HDS2517 211 0.5 85
Show 17478+1619 HEI 254 275 2.3 90
Show 17524+1733 BPM 703 353 82.3 97
Show 17411+1628 A 2091 269 0.8 100
Show 17524+1708 TDT 550 32 0.5 102
Show 17444+1600 LSC 75 323 0.6 105
Show 17456+1553 HU 1287 63 1.9 110
Show 17478+1557 TOB 268 AB 115 24.1 111
Show 17478+1557 TOB 268 AC 253 70.2 111
Show 17387+1834 BUP 177 AB 266 272.2 112
Show 17387+1834 BUP 177 AC 269 374.3 112
Show 17387+1840 SLO 1 AB 219 1.7 116
Show 17387+1840 SLO 1 AC 149 146.3 116
Show 17530+1655 CRC 27 Aa,Ab 112 0.9 116
Show 17530+1655 CRC 27 AB 31 9.0 116
Show 17387+1834 BUP 177 BC 270 104.9 116
Show 17376+1747 BPM 690 210 65.8 116
Show 17388+1643 BPM 692 111 112.7 116
Show 17387+1834 OSO 82 CD 202 9.9 118
Show 17420+1557 BU 1251 AB 102 1.4 119
Show 17420+1557 BU 1251 AC 271 154.7 119
Show 17478+1546 TOB 267 84 17.9 121
Show 17537+1702 BPM 706 287 69.6 123
Show 17483+1547 J 753 AB 275 2.0 123
Show 17483+1547 FOX 209 AC 179 47.9 123
Show 17471+1945 UC 3405 AB 259 27.2 124
Show 17471+1945 UC 3405 AC 226 1.2 124
Show 17372+1809 TDT 436 184 0.1 124
Show 17433+1534 KPP4055 106 1.3 134
Show 17403+1553 TVB 296 302 17.0 135

 
 
WDS 17457+1743 : COMPONENTS
 
 
  A
B pa=19.8°
sep=0.79"
 
 
17457+1743 A
 
 
Componente originario normalizzato AB Name HD 161585 Coord arcsec 2000 174541.03+174300.7 Mag 9.37
Spectral class K0.2V (yellow-orange) PmRA -25.00 PmDE 74.0 SAO 103085
Tycho2 1556-00743-1 HD 161585 GC 24106 DM BD+17 3326
Tycho2
Tycho2 1556-00743-1 Pflag P RAmdeg 266.42095234 DEmdeg 17.71686217
PmRA -25.3 PmDE 74.0 E RAmdeg 14 E DEmdeg 14
E pmRA 1.6 E pmDE 1.6 EpRAm 1990.54 EpDEm 1990.61
Num 5 Q RAmdeg 1.1 Q DEmdeg 0.6 Q pmRA 1.1
Q pmDE 0.6 BTmag 10.505 E BTmag 0.033 VTmag 9.374
E VTmag 0.019 Prox 13 TYC T HIP
CCDM RAdeg 266.42105750 DEdeg 17.71654056 EpRA 1990 1.52
EpDE 1990 1.62 E RAdeg 14.4 E DEdeg 13.9 Posflg D
Corr -0.1
SAO
SAO 103085 DelFlag RA1950 PmRA1950 -0.0017
DE1950 PmDE1950 0.069 Vmag 7.9 SpType K0
Double code Source 70 CatNum 24106 DM BD+17 3326
DMcomp BDsup HD 161585 M HD 0
GC 24106 RA1950rad 4.64029626 DE1950rad 0.30952495 PmRA2000 -0.0016
PmDE2000 0.07
CCDM
Ccdm 17457+1743 RComp Comp A Note1
Note2 Discov num DRAs -0.99 DDEs 1.6
R dRAs 10 Year Theta Rho
Obs 2 Vmag 8.5 Sp K0 PmNote *
PmRA -35 PmDE 90 Dm number +17 3326 Cat1 BD
Name2 +17 1759 Cat2 AGK2/3 HD 161585 M HD
ADS BDS A10769 M ADS BDS N IDS IDS 17413N1745A
HIC
 
 
17457+1743 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 174541.05+174301.4 Mag 9.59 Spectral class K2V (yellow-orange)
PmRA -25.00 PmDE 74.0 Tycho2 1556-00743-2 Calc delta mag 0.22
Calc coord yes
Tycho2
Tycho2 1556-00743-2 Pflag P RAmdeg 266.42095234 DEmdeg 17.71686217
PmRA -25.3 PmDE 74.0 E RAmdeg 14 E DEmdeg 14
E pmRA 1.6 E pmDE 1.6 EpRAm 1990.54 EpDEm 1990.61
Num 5 Q RAmdeg 1.1 Q DEmdeg 0.6 Q pmRA 1.1
Q pmDE 0.6 BTmag 10.707 E BTmag 0.039 VTmag 9.589
E VTmag 0.022 Prox 13 TYC HIP
CCDM RAdeg 266.42095472 DEdeg 17.71689917 EpRA 1990 1.52
EpDE 1990 1.62 E RAdeg 17.1 E DEdeg 16.5 Posflg D
Corr -0.1
CCDM
Ccdm 17457+1743 RComp Comp B Note1
Note2 Discov num STF2205 DRAs DDEs
R dRAs Year 1960 Theta 326 Rho 1.7
Obs 99 Vmag 8.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A10769 M ADS BDS N IDS IDS 17413N1745B
HIC