13336+2944 A  1095

 
 
13h 33m 33.77s +29 44' 16.9" P.A. 291.3 sep 0.32 mag 8.98,9.32 Sp G0 dist. 132.98 pc (433.78 l.y.)
 
 
Coord 2000
13336+2944
Discov num
A  1095
Comp
Coord arcsec 2000
13 33 33.77 +29 44 16.9
Date first
1905
Date last
2010
Obs
55
Pa first
177
Pa last
289
P.A. Now (θ)
291.3°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.32"
Mag pri
8.98
Mag sec
9.32
delta mag (ΔM)
0.34
Spectral class
G0 (yellow)
Pri motion ra
-052
Sec motion ra
-052
Pri motion dec
+066
Sec motion dec
+066
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
288.7
Precise sep
0.385
Constellation
Canes Venatici
HIP
66149
Tycho2
2003-00422-1
HD
117998
ADS
8943
BD
BD+30 2420
Distance
132.98
Distance ly
433.78
last precise pa
288.7
last precise sep
0.385
 
 
ORBITAL ELEMENTS
 
 
Period (P)187.53y Periastron (T)2049.28y Semi-major axis (a)0.331a
Eccentricity (e)0.471 Inclination (i)37.8° Longitude of periastron (ω)298.2°
Node (Ω)109.1° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation1999
label rho theta
2000 0.394 271.0
2001 0.391 272.0
2002 0.388 273.0
2003 0.386 273.9
2004 0.382 274.9
2005 0.379 275.9
2006 0.376 277.0
2007 0.372 278.0
2008 0.369 279.1
2009 0.365 280.2
2010 0.361 281.3
2011 0.357 282.4
2012 0.352 283.6
2013 0.348 284.8
2014 0.343 286.0
2015 0.338 287.3
2016 0.333 288.6
2017 0.328 289.9
2018 0.323 291.3
2019 0.317 292.7
2020 0.311 294.2
2021 0.305 295.8
2022 0.299 297.4
2023 0.293 299.0
2024 0.286 300.8
2025 0.279 302.6
2026 0.272 304.6
2027 0.265 306.6
2028 0.257 308.7
2029 0.250 311.0
2030 0.242 313.4

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

grafico orbita





wds13336%2B2944a.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
13336+2944 A 1095 2004 50 274 0.4 8.98 9.32 G0 NOD 133333.77+294416.9
13336+2944 A 1095 2007 51 277 0.4 8.98 9.32 G0 NOD 133333.77+294416.9
13336+2944 A 1095 2010 53 289 0.4 8.98 9.32 G0 NOD 133333.77+294416.9

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