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Doubles in session


Current system
19190+4138
KOI 3158 A,BC


Nearby doubles
8' : 19190+4145
DEA 174

10' : 19197+4133
KOI1687

13' : 19188+4151
KOI6707

15' : 19195+4124
COU2397

16' : 19180+4149
KOI 854AB

17' : 19205+4136
KOI1812AB

17' : 19177+4131
KOI4463

18' : 19195+4154
KOI2445

19' : 19176+4147
KOI2948

19' : 19175+4132
KOI2829AB

19' : 19185+4156
KOI4074

20' : 19207+4133
KOI4521

20' : 19174+4146
RAO 163

20' : 19190+4158
KOI3818

22' : 19197+4157
DEA 199

23' : 19182+4118
KOI2733AB

23' : 19207+4127
VKI 34

23' : 19205+4123
KOI1061

25' : 19170+4129
KOI3134

26' : 19209+4152
KOI2976

27' : 19212+4129
KOI5239

27' : 19205+4117
RAO 95

28' : 19214+4133
KOI4502

28' : 19193+4206
TDT1373

29' : 19210+4120
KOI1916

30' : 19164+4141
KOI4477



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.

19190+4138 KOI 3158 A,BC

 
 
19h 19m 00.54s +41° 38' 04.5" P.A. 253.00 sep 1.8 mag 14.03,16.90 Sp F4+K8 dist. 35.68 pc (116.39 l.y.)
 
 
Coord 2000 19190+4138 Discov num KOI3158 Comp A,BC Coord arcsec 2000 19 19 00.54 +41 38 04.5
Date first 2012 Date last 2015 Obs 15
Pa first 270 Pa last 252.7 P.A. Now (θ) 252.7°
Sep first 1.8 Sep last 1.838 Sep. Now (ρ) 1.838"
Mag pri 14.03 Mag sec 16.90 delta mag (ΔM) 2.87 Spectral class F4+K8 (yellow-white/yellow-orange)
Pri motion ra +099 Sec motion ra
Pri motion dec -632 Sec motion dec
Notes N O R (See Notes, Orbital solution, Red magnitudes)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Lyra HIP 94931 BD BD+41 3306 Distance 35.68
Distance ly 116.39
 
 
ORBITAL ELEMENTS
 
 
Period (P)198y± 9 Periastron (T)88500d (2101.181y)± 900 Semi-major axis (a)1.028a± 0.022
Eccentricity (e)0.864± 0.023 Inclination (i)90.4°± 3.5 Longitude of periastron (ω)342.8°± 2.9
Node (Ω)73.1°± 0.9 Notesn ReferenceDup2016b
Equinox2000 Last observation2015 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 253.2 1.824
2001 253.2 1.827
2002 253.2 1.830
2003 253.2 1.833
2004 253.2 1.835
2005 253.2 1.837
2006 253.2 1.838
2007 253.2 1.840
2008 253.2 1.841
2009 253.2 1.842
2010 253.2 1.842
2011 253.2 1.842
2012 253.2 1.842
2013 253.2 1.842
2014 253.2 1.841
2015 253.2 1.840
2016 253.2 1.839
2017 253.2 1.837
2018 253.2 1.836
2019 253.2 1.834
2020 253.2 1.831
2021 253.2 1.828
2022 253.2 1.825
2023 253.2 1.822
2024 253.2 1.818
2025 253.2 1.814
2026 253.2 1.810
2027 253.2 1.805
2028 253.2 1.800
2029 253.2 1.795
2030 253.2 1.790


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


 
  


wds19190%2B4138a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic