09535+1657 CHR 219

 
 
09H 53M 30.98S +16 57' 01.9" P.A. 58.9 SEP 0.21 MAG 9.62,10.02 SP K0 DIST. 58.28 PC (190.11 L.Y.)
 
 
Coord 2000
09535+1657
Discov num
CHR 219
Comp
Coord arcsec 2000
09 53 30.98 +16 57 01.9
Date first
1991
Date last
2013
Obs
10
Pa first
229
Pa last
72
P.A. Now (θ)
58.9°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.21"
Mag pri
9.62
Mag sec
10.02
delta mag (ΔM)
0.4
Spectral class
K0 (yellow-orange)
Pri motion ra
-003
Sec motion ra
Pri motion dec
-049
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Leo
SAO
98828
HIP
48504
Tycho2
1411-00333-1
BD
BD+17 2150
Distance
58.28
Distance ly
190.11
last precise pa
72.4
last precise sep
0.253
 
 
ORBITAL ELEMENTS
 
 
Period (P)43.57y Periastron (T)2021.51y Semi-major axis (a)0.305a
Eccentricity (e)0.428 Inclination (i)103.6° Longitude of periastron (ω)260.8°
Node (Ω)241.7° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2011
label rho theta
2000 0.119 183.2
2001 0.107 170.3
2002 0.102 155.2
2003 0.103 139.4
2004 0.111 125.0
2005 0.124 112.9
2006 0.140 103.5
2007 0.158 96.0
2008 0.176 90.2
2009 0.195 85.4
2010 0.212 81.4
2011 0.228 78.1
2012 0.241 75.1
2013 0.251 72.4
2014 0.256 69.9
2015 0.257 67.4
2016 0.250 64.9
2017 0.236 62.1
2018 0.211 58.9
2019 0.176 54.5
2020 0.128 47.3
2021 0.073 29.9
2022 0.042 323.5
2023 0.084 269.9
2024 0.139 255.9
2025 0.187 249.6
2026 0.226 245.8
2027 0.255 243.0
2028 0.276 240.7
2029 0.290 238.6
2030 0.297 236.7

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