10227+1521 STT 216

 
 
10h 22m 43.81s +15 20' 39.7" P.A. 229.7 sep 2.27 mag 7.38,10.28 Sp G5 dist. 28.77 pc (93.85 l.y.)
 
 
Coord 2000
10227+1521
Discov num
STT 216
Comp
Coord arcsec 2000
10 22 43.81 +15 20 39.7
Date first
1843
Date last
2015
Obs
173
Pa first
164
Pa last
231
P.A. Now (θ)
229.7°
Sep first
1.9
Sep last
2.3
Sep. Now (ρ)
2.27"
Mag pri
7.38
Mag sec
10.28
delta mag (ΔM)
2.9
Spectral class
G5 (yellow)
Pri motion ra
-251
Sec motion ra
-262
Pri motion dec
-101
Sec motion dec
-086
Notes
N O (See Notes, Orbital solution)
rPM=0.067 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
231.3
Precise sep
2.27
Constellation
Leo
SAO
99091
HIP
50829
Tycho2
1420-01200-1
HD
89906
ADS
7744
GL
NN 3596
BD
BD+16 2116
Distance
28.77
Distance ly
93.85
last precise pa
231.3
last precise sep
2.27
 
 
ORBITAL ELEMENTS
 
 
Period (P)314.93y Periastron (T)1941.24y Semi-major axis (a)1.84a
Eccentricity (e)0.544 Inclination (i)144.6° Longitude of periastron (ω)42.1°
Node (Ω)53.3° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 1.973 240.2
2001 1.992 239.5
2002 2.011 238.9
2003 2.030 238.2
2004 2.049 237.6
2005 2.067 237.0
2006 2.085 236.3
2007 2.102 235.7
2008 2.119 235.1
2009 2.136 234.6
2010 2.153 234.0
2011 2.169 233.4
2012 2.185 232.9
2013 2.200 232.3
2014 2.216 231.8
2015 2.230 231.2
2016 2.245 230.7
2017 2.259 230.2
2018 2.273 229.7
2019 2.287 229.2
2020 2.301 228.7
2021 2.314 228.2
2022 2.327 227.7
2023 2.339 227.2
2024 2.351 226.7
2025 2.363 226.2
2026 2.375 225.7
2027 2.387 225.3
2028 2.398 224.8
2029 2.409 224.4
2030 2.419 223.9

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

grafico orbita





wds10227%2B1521a.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
10227+1521 STT 216 2006 158 237 2.1 7.38 10.28 G5 NOD 102243.81+152039.7
10227+1521 STT 216 2009 161 234 2.2 7.38 10.28 G5 NOD 102243.81+152039.7
10227+1521 STT 216 2010 163 233 2.2 7.38 10.28 G5 NOD 102243.81+152039.7
10227+1521 STT 216 2013 168 232 2.3 7.38 10.28 G5 NOD 102243.81+152039.7
10227+1521 STT 216 2014 171 232 2.3 7.38 10.28 G5 NO 102243.81+152039.7
10227+1521 STT 216 2015 173 231 2.3 7.38 10.28 G5 NO 102243.81+152039.7

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