15002+2129 HU  907

 
 
15H 00M 10.00S +21 28' 48.8" P.A. 288.3 SEP 0.24 MAG 10.19,10.20 SP G0 DIST. 158.73 PC (517.78 L.Y.)
 
 
Coord 2000
15002+2129
Discov num
HU  907
Comp
Coord arcsec 2000
15 00 10.00 +21 28 48.8
Date first
1904
Date last
2009
Obs
20
Pa first
155
Pa last
277
P.A. Now (θ)
288.3°
Sep first
0.3
Sep last
0.2
Sep. Now (ρ)
0.24"
Mag pri
10.19
Mag sec
10.20
delta mag (ΔM)
0.01
Spectral class
G0 (yellow)
Pri motion ra
-025
Sec motion ra
Pri motion dec
-037
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Bootes
SAO
83610
HIP
73411
Tycho2
1491-01319-1
ADS
9473
BD
BD+22 2769
Distance
158.73
Distance ly
517.78
last precise pa
277.3
last precise sep
0.24
 
 
ORBITAL ELEMENTS
 
 
Period (P)259.8y Periastron (T)2123.28y Semi-major axis (a)0.339a
Eccentricity (e)0.29 Inclination (i)62.2° Longitude of periastron (ω)272°
Node (Ω)157.5° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 0.209 262.8
2001 0.211 264.4
2002 0.212 266.0
2003 0.213 267.6
2004 0.215 269.2
2005 0.216 270.7
2006 0.218 272.2
2007 0.220 273.7
2008 0.222 275.1
2009 0.224 276.6
2010 0.226 278.0
2011 0.228 279.3
2012 0.230 280.7
2013 0.232 282.0
2014 0.234 283.3
2015 0.237 284.6
2016 0.239 285.9
2017 0.242 287.1
2018 0.244 288.3
2019 0.246 289.5
2020 0.249 290.7
2021 0.252 291.8
2022 0.254 292.9
2023 0.257 294.0
2024 0.259 295.1
2025 0.262 296.1
2026 0.265 297.1
2027 0.267 298.1
2028 0.270 299.1
2029 0.272 300.1
2030 0.275 301.0

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