14565+0255 A  2172

 
 
14h 56m 30.89s +02 55' 12.2" P.A. 121.7 sep 0.17 mag 8.00,8.60 Sp K0
 
 
Coord 2000
14565+0255
Discov num
A  2172
Comp
Coord arcsec 2000
14 56 30.89 +02 55 12.2
Date first
1910
Date last
2010
Obs
25
Pa first
339
Pa last
137
P.A. Now (θ)
121.7°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.17"
Mag pri
8.00
Mag sec
8.60
delta mag (ΔM)
0.6
Spectral class
K0 (yellow-orange)
Pri motion ra
+015
Sec motion ra
Pri motion dec
+026
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
137.4
Precise sep
0.17
Constellation
Virgo
Tycho2
0330-00180-1
HD
131954
ADS
9443
last precise pa
137.4
last precise sep
0.17
 
 
ORBITAL ELEMENTS
 
 
Period (P)168.3y Periastron (T)2000.4y Semi-major axis (a)0.196a
Eccentricity (e)0.177 Inclination (i)115° Longitude of periastron (ω)326°
Node (Ω)128.5° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 0.137 145.1
2001 0.141 143.4
2002 0.145 141.7
2003 0.148 140.1
2004 0.151 138.6
2005 0.154 137.1
2006 0.157 135.7
2007 0.159 134.3
2008 0.161 133.0
2009 0.163 131.7
2010 0.164 130.4
2011 0.165 129.2
2012 0.166 127.9
2013 0.166 126.7
2014 0.166 125.4
2015 0.166 124.2
2016 0.166 123.0
2017 0.165 121.7
2018 0.164 120.5
2019 0.163 119.2
2020 0.161 117.9
2021 0.160 116.6
2022 0.158 115.2
2023 0.156 113.8
2024 0.153 112.4
2025 0.151 110.9
2026 0.148 109.4
2027 0.145 107.8
2028 0.142 106.1
2029 0.139 104.4
2030 0.136 102.6

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

grafico orbita





wds14565%2B0255b.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
14565+0255 A 2172 2006 22 136 0.2 8.00 8.60 K0 O 145630.89+025512.2
14565+0255 A 2172 2009 24 132 0.2 8.00 8.60 K0 O 145630.89+025512.2
14565+0255 A 2172 2010 25 137 0.2 8.00 8.60 K0 O 145630.89+025512.2

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