13235+2914 HO  260

 
 
13H 23M 32.82S +29 14' 15.0" P.A. 88.2 SEP 1.67 MAG 9.60,9.94 SP M0+M0.5 DIST. 18.82 PC (61.39 L.Y.)
 
 
Coord 2000
13235+2914
Discov num
HO  260
Comp
Coord arcsec 2000
13 23 32.82 +29 14 15.0
Date first
1887
Date last
2015
Obs
201
Pa first
299
Pa last
88
P.A. Now (θ)
88.2°
Sep first
0.6
Sep last
1.7
Sep. Now (ρ)
1.67"
Mag pri
9.60
Mag sec
9.94
delta mag (ΔM)
0.34
Spectral class
M0+M0.5 (red/red)
Pri motion ra
-468
Sec motion ra
-468
Pri motion dec
+245
Sec motion dec
+245
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Canes Venatici
SAO
82816
HIP
65343
Tycho2
1996-01770-1
HD
116495
ADS
8887
GL
Gl 509A
BD
BD+29 2405
Distance
18.82
Distance ly
61.39
last precise pa
88.4
last precise sep
1.66
 
 
ORBITAL ELEMENTS
 
 
Period (P)246y Periastron (T)1884.6y Semi-major axis (a)2.12a
Eccentricity (e)0.8 Inclination (i)77.1° Longitude of periastron (ω)110°
Node (Ω)116.1° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 1.424 81.5
2001 1.438 81.9
2002 1.453 82.4
2003 1.467 82.8
2004 1.481 83.2
2005 1.495 83.6
2006 1.509 84.0
2007 1.523 84.3
2008 1.537 84.7
2009 1.550 85.1
2010 1.564 85.5
2011 1.577 85.8
2012 1.590 86.2
2013 1.604 86.5
2014 1.617 86.9
2015 1.630 87.2
2016 1.642 87.5
2017 1.655 87.8
2018 1.668 88.2
2019 1.680 88.5
2020 1.692 88.8
2021 1.704 89.1
2022 1.716 89.4
2023 1.728 89.7
2024 1.740 90.0
2025 1.751 90.3
2026 1.763 90.6
2027 1.774 90.8
2028 1.785 91.1
2029 1.796 91.4
2030 1.806 91.7

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