12485-1543 WSI  74Aa,Ab

 
 
12H 48M 32.31S -15 43' 10.1" P.A. 110 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
2017
Obs
24
Pa first
91
Pa last
110
P.A. Now (θ)
110°
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 2017 24 110 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
 
 
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)2.643y± 0.012 Periastron (T)2016.35y± 0.1 Semi-major axis (a)88m± 10
Eccentricity (e)0.52± 0.047 Inclination (i)59°± 5.7 Longitude of periastron (ω)139°± 10
Node (Ω)147.7°± 2.2 Note Grade2(1=Definitive, 9=Indet.)
Equinox2000 Last observation2015
label rho theta
2000 0.092 154.0
2001 0.049 52.7
2002 0.118 130.2
2003 0.027 217.3
2004 0.076 99.3
2005 0.115 142.0
2006 0.049 354.1
2007 0.105 119.6
2008 0.082 158.4
2009 0.053 65.6
2010 0.119 132.5
2011 0.026 269.6
2012 0.083 104.5
2013 0.112 144.5
2014 0.048 8.1
2015 0.109 122.5
2016 0.070 164.1
2017 0.058 76.4
2018 0.120 134.8
2019 0.036 306.2
2020 0.089 109.0
2021 0.107 147.3
2022 0.047 22.8
2023 0.113 125.2
2024 0.056 172.4
2025 0.063 85.5
2026 0.119 137.1
2027 0.045 325.9
2028 0.095 112.9
2029 0.100 150.4
2030 0.047 37.9

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