10093+2020 A  2145

 
 
10H 09M 19.63S +20 19' 56.6" P.A. 235.8 SEP 0.19 MAG 7.30,7.50 SP F5+A2 DIST. 290.7 PC (948.26 L.Y.)
 
 
Coord 2000
10093+2020
Discov num
A  2145
Comp
Coord arcsec 2000
10 09 19.63 +20 19 56.6
Date first
1910
Date last
2014
Obs
86
Pa first
195
Pa last
229
P.A. Now (θ)
235.8°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.19"
Mag pri
7.30
Mag sec
7.50
delta mag (ΔM)
0.2
Spectral class
F5+A2 (yellow-white/white)
Pri motion ra
-027
Sec motion ra
Pri motion dec
-019
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Leo
SAO
81208
HIP
49747
Tycho2
1425-01393-1
HD
88021
ADS
7662
BD
BD+21 2156
Distance
290.7
Distance ly
948.26
last precise pa
229.2
last precise sep
0.218
 
 
ORBITAL ELEMENTS
 
 
Period (P)80.59y Periastron (T)1991.25y Semi-major axis (a)0.152a
Eccentricity (e)0.812 Inclination (i)139.5° Longitude of periastron (ω)113.7°
Node (Ω)160.7° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation1995
label rho theta
2000 0.111 269.8
2001 0.118 266.3
2002 0.124 263.1
2003 0.130 260.3
2004 0.136 257.7
2005 0.142 255.3
2006 0.147 253.1
2007 0.152 251.1
2008 0.157 249.2
2009 0.162 247.4
2010 0.167 245.7
2011 0.171 244.1
2012 0.175 242.6
2013 0.179 241.1
2014 0.183 239.7
2015 0.187 238.4
2016 0.190 237.1
2017 0.193 235.8
2018 0.196 234.6
2019 0.199 233.5
2020 0.202 232.3
2021 0.204 231.2
2022 0.207 230.1
2023 0.209 229.1
2024 0.211 228.0
2025 0.213 227.0
2026 0.215 226.0
2027 0.216 225.0
2028 0.218 224.1
2029 0.219 223.1
2030 0.220 222.2

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