15226+7254 HDS2163

 
 
15h 22m 35.11s +72 54' 15.2" P.A. 175.3 sep 0.25 mag 9.22,10.62 Sp G5 dist. 122.1 pc (398.29 l.y.)
 
 
Coord 2000
15226+7254
Discov num
HDS2163
Comp
Coord arcsec 2000
15 22 35.11 +72 54 15.2
Date first
1991
Date last
2010
Obs
6
Pa first
12
Pa last
166
P.A. Now (θ)
175.3°
Sep first
0.1
Sep last
0.2
Sep. Now (ρ)
0.25"
Mag pri
9.22
Mag sec
10.62
delta mag (ΔM)
1.4
Spectral class
G5 (yellow)
Pri motion ra
-038
Sec motion ra
Pri motion dec
+050
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
165.9
Precise sep
0.185
Constellation
Ursa Minor
SAO
8232
HIP
75248
Tycho2
4417-01473-1
HD
137825
BD
BD+73 673
Distance
122.1
Distance ly
398.29
last precise pa
165.9
last precise sep
0.185
 
 
ORBITAL ELEMENTS
 
 
Period (P)130.91y Periastron (T)1993.53y Semi-major axis (a)0.261a
Eccentricity (e)0.483 Inclination (i)66° Longitude of periastron (ω)39.2°
Node (Ω)3.7° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 0.063 99.0
2001 0.069 114.4
2002 0.078 126.8
2003 0.090 136.3
2004 0.102 143.6
2005 0.115 149.3
2006 0.129 153.7
2007 0.142 157.4
2008 0.155 160.4
2009 0.168 163.0
2010 0.180 165.2
2011 0.192 167.1
2012 0.203 168.8
2013 0.214 170.4
2014 0.224 171.7
2015 0.234 173.0
2016 0.244 174.2
2017 0.253 175.3
2018 0.261 176.3
2019 0.269 177.2
2020 0.276 178.1
2021 0.284 179.0
2022 0.290 179.8
2023 0.297 180.6
2024 0.302 181.3
2025 0.308 182.0
2026 0.313 182.7
2027 0.318 183.4
2028 0.322 184.0
2029 0.326 184.7
2030 0.330 185.3

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

grafico orbita





wds15226%2B7254a.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
15226+7254 HDS2163 1991 1 12 0.1 9.22 10.62 G5 152235.11+725415.2
15226+7254 HDS2163 2008 3 161 0.2 9.22 10.62 G5 D 152235.11+725415.2
15226+7254 HDS2163 2010 4 166 0.2 9.22 10.62 G5 D 152235.11+725415.2

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