10520+1606 A  2373

 
 
10h 52m 02.94s +16 05' 44.0" P.A. 216.8 sep 0.21 mag 8.80,8.80 Sp F5 dist. 387.6 pc (1264.35 l.y.)
 
 
Coord 2000
10520+1606
Discov num
A  2373
Comp
Coord arcsec 2000
10 52 02.94 +16 05 44.0
Date first
1911
Date last
2008
Obs
31
Pa first
223
Pa last
220
P.A. Now (θ)
216.8°
Sep first
0.2
Sep last
0.1
Sep. Now (ρ)
0.21"
Mag pri
8.80
Mag sec
8.80
delta mag (ΔM)
0
Spectral class
F5 (yellow-white)
Pri motion ra
-016
Sec motion ra
Pri motion dec
+003
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
220.1
Precise sep
0.137
Constellation
Leo
SAO
99331
HIP
53124
Tycho2
1429-00210-1
HD
94120
ADS
7952
BD
BD+16 2180
Distance
387.6
Distance ly
1264.35
last precise pa
220.1
last precise sep
0.137
 
 
ORBITAL ELEMENTS
 
 
Period (P)100.26y Periastron (T)1980.77y Semi-major axis (a)0.172a
Eccentricity (e)0.816 Inclination (i)135.5° Longitude of periastron (ω)101.6°
Node (Ω)130.3° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation1993
label rho theta
2000 0.164 237.6
2001 0.168 236.0
2002 0.172 234.5
2003 0.175 233.0
2004 0.179 231.6
2005 0.182 230.3
2006 0.185 229.0
2007 0.188 227.7
2008 0.191 226.5
2009 0.193 225.3
2010 0.196 224.1
2011 0.198 223.0
2012 0.201 221.9
2013 0.203 220.8
2014 0.205 219.8
2015 0.207 218.7
2016 0.209 217.7
2017 0.211 216.8
2018 0.213 215.8
2019 0.215 214.8
2020 0.216 213.9
2021 0.218 212.9
2022 0.219 212.0
2023 0.220 211.1
2024 0.222 210.2
2025 0.223 209.3
2026 0.224 208.5
2027 0.225 207.6
2028 0.225 206.7
2029 0.226 205.9
2030 0.227 205.0

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

grafico orbita





wds10520%2B1606a.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
10520+1606 A 2373 2006 28 229 0.2 8.80 8.80 F5 NO 105202.94+160544.0
10520+1606 A 2373 2007 29 230 0.2 8.80 8.80 F5 NO 105202.94+160544.0
10520+1606 A 2373 2008 31 220 0.1 8.80 8.80 F5 NO 105202.94+160544.0

If you need more information about this double, apply for a data request form to the WDS.