19190+4138 KOI3158A,BC

 
 
19h 19m 00.54s +41 38' 04.5" P.A. 253 sep 1.8 mag 14.03,16.90 Sp F4+K8
 
 
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
14
Pa first
270
Pa last
253
P.A. Now (θ)
253°
Sep first
1.8
Sep last
1.8
Sep. Now (ρ)
1.8"
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
 
 
Precise pa
253.2
Precise sep
1.841
Constellation
Lyra
last precise pa
253.2
last precise sep
1.841
 
 
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 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2015
label rho theta
2000 1.824 253.2
2001 1.827 253.2
2002 1.830 253.2
2003 1.833 253.2
2004 1.835 253.2
2005 1.837 253.2
2006 1.838 253.2
2007 1.840 253.2
2008 1.841 253.2
2009 1.842 253.2
2010 1.842 253.2
2011 1.842 253.2
2012 1.842 253.2
2013 1.842 253.2
2014 1.841 253.2
2015 1.840 253.2
2016 1.839 253.2
2017 1.837 253.2
2018 1.836 253.2
2019 1.834 253.2
2020 1.831 253.2
2021 1.828 253.2
2022 1.825 253.2
2023 1.822 253.2
2024 1.818 253.2
2025 1.814 253.2
2026 1.810 253.2
2027 1.805 253.2
2028 1.800 253.2
2029 1.795 253.2
2030 1.790 253.2

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

grafico orbita





wds19190%2B4138a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19190+4138 KOI3158 A,BC 2015 14 253 1.8 14.03 16.90 F4+K8 NO R 191900.54+413804.5

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