19027+4307 YSC  13

 
 
19H 02M 39.41S +43 07' 02.9" P.A. 106.6 SEP 0.11 MAG 8.30,9.20 SP F6IV DIST. 100.2 PC (326.85 L.Y.)
 
 
Coord 2000
19027+4307
Discov num
YSC  13
Comp
Coord arcsec 2000
19 02 39.41 +43 07 02.9
Date first
2006
Date last
2014
Obs
16
Pa first
113
Pa last
248
P.A. Now (θ)
106.6°
Sep first
0.1
Sep last
0.0
Sep. Now (ρ)
0.11"
Mag pri
8.30
Mag sec
9.20
delta mag (ΔM)
0.9
Spectral class
F6IV (yellow-white)
Pri motion ra
+048
Sec motion ra
Pri motion dec
+007
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Lyra
HIP
93511
HD
177412
Distance
100.2
Distance ly
326.85
last precise pa
248
last precise sep
0.038
 
 
ORBITAL ELEMENTS
 
 
Period (P)11.937y Periastron (T)2014.324y Semi-major axis (a)0.094a
Eccentricity (e)0.761 Inclination (i)44.4° Longitude of periastron (ω)267.3°
Node (Ω)41.4° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2012
label rho theta
2000 0.094 164.6
2001 0.075 181.9
2002 0.039 220.8
2003 0.051 52.3
2004 0.083 80.1
2005 0.100 94.8
2006 0.110 106.0
2007 0.116 115.6
2008 0.118 124.5
2009 0.117 133.3
2010 0.113 142.6
2011 0.105 152.9
2012 0.093 165.5
2013 0.073 183.3
2014 0.035 226.6
2015 0.054 55.1
2016 0.084 81.2
2017 0.101 95.6
2018 0.111 106.6
2019 0.116 116.1
2020 0.118 125.0
2021 0.117 133.9
2022 0.113 143.2
2023 0.105 153.6
2024 0.092 166.4
2025 0.072 184.8
2026 0.031 233.8
2027 0.056 57.7
2028 0.085 82.3
2029 0.101 96.4
2030 0.111 107.2

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic