12485-1543 WSI  74Aa,Ab

 
 
12h 48m 32.31s -15 43' 10.1" P.A. 128 sep 0.1 mag 8.20,9.60 Sp K2.5V dist. 23.83 pc (77.73 l.y.)
 
 
Coord 2000
12485-1543
Discov num
WSI  74
Comp
Aa,Ab
Coord arcsec 2000
12 48 32.31 -15 43 10.1
Date first
2001
Date last
2015
Obs
19
Pa first
91
Pa last
128
P.A. Now (θ)
128°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
8.20
Mag sec
9.60
delta mag (ΔM)
1.4
Spectral class
K2.5V (yellow-orange)
Pri motion ra
+083
Sec motion ra
Pri motion dec
+041
Sec motion dec
Notes
O (Orbital solution)
This double is physical.
 
 
12485-1543 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 157520 12485-1543 WSI 74 Aa,Ab 2001 2015 19 128 0.1 8.20 9.60 1.40 Y <===
Show VZ Crv 157520 12485-1543 HDS1795 AB 1991 1991 2 63 2.7 7.99 12.26 4.27
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
128.1
Precise sep
0.118
Var name
VZ Crv
Constellation
Corvus
SAO
157520
HIP
62505
Tycho2
6111-01825-1
HD
111312
GL
GJ 1165
BD
BD-14 3581
Distance
23.83
Distance ly
77.73
last precise pa
110.4
last precise sep
0.091
 
 
ORBITAL ELEMENTS
 
 
Period (P)2.661y± 0.002 Periastron (T)2011.094y± 0.005 Semi-major axis (a)0.0843a± 0.0008
Eccentricity (e)0.508± 0.007 Inclination (i)55.3°± 0.8 Longitude of periastron (ω)145.6°± 1.3
Node (Ω)146.6°± 0.9 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.079 161.5
2001 0.054 68.0
2002 0.118 133.0
2003 0.027 248.0
2004 0.083 103.9
2005 0.110 144.9
2006 0.046 0.5
2007 0.108 121.3
2008 0.077 162.8
2009 0.055 70.7
2010 0.118 133.6
2011 0.027 258.9
2012 0.085 105.0
2013 0.109 145.6
2014 0.046 4.3
2015 0.109 122.0
2016 0.074 164.3
2017 0.057 73.3
2018 0.118 134.2
2019 0.028 269.4
2020 0.086 106.1
2021 0.108 146.3
2022 0.046 8.1
2023 0.109 122.7
2024 0.071 165.8
2025 0.058 75.7
2026 0.118 134.7
2027 0.030 279.0
2028 0.088 107.2
2029 0.107 147.0
2030 0.046 11.9

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

grafico orbita





wds12485-1543e.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
12485-1543 WSI 74 Aa,Ab 2009 2 99 0.1 8.20 9.60 K2.5V 124832.26-154310.5
12485-1543 WSI 74 Aa,Ab 2010 5 316 0.1 8.20 9.60 K2.5V 124832.26-154310.5
12485-1543 WSI 74 Aa,Ab 2012 6 289 0.1 8.20 9.60 K2.5V 124832.26-154310.5
12485-1543 WSI 74 Aa,Ab 2013 7 150 0.1 8.20 9.60 K2.5V 124832.26-154310.5
12485-1543 WSI 74 Aa,Ab 2015 13 123 0.1 8.20 9.60 K2.5V O 124832.26-154310.5

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