13198+4747 HU  644AB

 
 
13h 19m 45.58s +47 46' 41.1" P.A. 79.2 sep 0.42 mag 9.11,9.87 Sp K0 dist. 10.71 pc (34.94 l.y.)
 
 
Coord 2000
13198+4747
Discov num
HU  644
Comp
AB
Coord arcsec 2000
13 19 45.58 +47 46 41.1
Date first
1904
Date last
2015
Obs
134
Pa first
99
Pa last
88
P.A. Now (θ)
79.2°
Sep first
0.9
Sep last
0.8
Sep. Now (ρ)
0.42"
Mag pri
9.11
Mag sec
9.87
delta mag (ΔM)
0.76
Spectral class
K0 (yellow-orange)
Pri motion ra
+094
Sec motion ra
Pri motion dec
-018
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
13198+4747 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 44566 13198+4747 CHR 193 Aa,Ab 1992 2012 10 107 0.0 9.30 11.00 1.70
Show 44566 13198+4747 HU 644 AB 1904 2015 134 79 0.4 9.11 9.87 0.76 Y <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
87.9
Precise sep
0.78
Constellation
Canes Venatici
SAO
44566
HIP
65026
HD
115953
ADS
8862
GL
Gl 508A
BD
BD+48 2108
Distance
10.71
Distance ly
34.94
last precise pa
87.9
last precise sep
0.78
 
 
ORBITAL ELEMENTS
 
 
Period (P)48.776y± 0.09 Periastron (T)1968.459y± 0.117 Semi-major axis (a)1.5198a± 0.005
Eccentricity (e)0.2148± 0.007 Inclination (i)94.43°± 0.2 Longitude of periastron (ω)72.65°± 0.71
Node (Ω)91.15°± 0.17 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 0.580 103.9
2001 0.721 100.9
2002 0.856 98.8
2003 0.981 97.2
2004 1.094 96.0
2005 1.193 95.1
2006 1.275 94.2
2007 1.337 93.5
2008 1.376 92.8
2009 1.390 92.1
2010 1.377 91.4
2011 1.333 90.7
2012 1.256 90.0
2013 1.147 89.1
2014 1.006 88.0
2015 0.834 86.4
2016 0.636 84.0
2017 0.419 79.2
2018 0.197 63.6
2019 0.114 325.8
2020 0.318 287.9
2021 0.541 280.4
2022 0.752 277.3
2023 0.944 275.5
2024 1.112 274.3
2025 1.255 273.4
2026 1.372 272.6
2027 1.462 272.0
2028 1.527 271.4
2029 1.568 270.9
2030 1.584 270.3

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

grafico orbita





wds13198%2B4747b.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
13198+4747 HU 644 AB 2007 119 93 1.2 9.11 9.87 NOD 131945.58+474641.1
13198+4747 HU 644 AB 2008 121 92 1.4 9.11 9.87 NOD 131945.58+474641.1
13198+4747 HU 644 AB 2010 123 91 1.4 9.11 9.87 NOD 131945.58+474641.1
13198+4747 HU 644 AB 2013 125 87 1.2 9.11 9.87 K0 NOD 131945.58+474641.1
13198+4747 HU 644 AB 2015 130 88 0.8 9.11 9.87 K0 NO 131945.58+474641.1

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