12283-6146 CPO 12 A,BC (HD 108500)

 
 
12h 28m 16.88s -61° 45' 56.5" P.A. 184.00 sep 2.2 mag 7.32,8.24 Sp G3V dist. 48.38 pc (157.82 l.y.)
 
 
Coord 2000 12283-6146 Discov num CPO  12 Comp A,BC Coord arcsec 2000 12 28 16.88 -61 45 56.5
Date first 1880 Date last 2021 Obs 54
Pa first 271 Pa last 184.2 P.A. Now (θ) 184.2°
Sep first 2.4 Sep last 2.178 Sep. Now (ρ) 2.178"
Mag pri 7.32 Mag sec 8.24 delta mag (ΔM) 0.92 Spectral class G3V (yellow)
Pri motion ra +075 Sec motion ra +100
Pri motion dec -159 Sec motion dec -170
Notes N O (See Notes, Orbital solution)
rPM=0.138 (< 0.3, Physical double)
This double is physical.
 
 
12283-6146 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 108500 251919 12 28 17 -61 45 56 CPO 12 A,BC 2021 54 184 2.2 7.32 8.24 0.92 Y <===
Show 251919 12 28 17 -61 45 56 RST 4499 AD 2016 5 331 7.9 7.32 13.70 6.38
Show 12 28 17 -61 45 58 RST 4499 BC 2021 24 32 0.2 8.80 8.80 0.00 Y
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 108500 Constellation Crux SAO 251919 HIP 60845
Tycho2 8975-03266-1 Gaia DR2 6054954738289909632 HD 108500 GC 16993
CP CP-61 3204 Distance 48.38 Distance ly 157.82
 
 
ORBITAL ELEMENTS
 
 
Period (P)574.0372y± 254.3519 Periastron (T)2068.4068y± 26.2252 Semi-major axis (a)3.24657a± 1.46785
Eccentricity (e)0.57381± 0.32128 Inclination (i)117.566°± 17.071 Longitude of periastron (ω)62.414°± 25.376
Node (Ω)167.744°± 11.655 Notes ReferenceIzm2019
Equinox Last observation2015 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 195.7 2.047
2001 195.1 2.048
2002 194.5 2.049
2003 193.9 2.049
2004 193.3 2.049
2005 192.7 2.049
2006 192.1 2.048
2007 191.5 2.047
2008 190.9 2.046
2009 190.3 2.045
2010 189.7 2.044
2011 189.1 2.042
2012 188.5 2.040
2013 187.9 2.037
2014 187.3 2.034
2015 186.7 2.031
2016 186.1 2.028
2017 185.5 2.024
2018 184.9 2.019
2019 184.3 2.014
2020 183.6 2.009
2021 183.0 2.003
2022 182.4 1.997
2023 181.8 1.990
2024 181.1 1.983
2025 180.5 1.975
2026 179.8 1.967
2027 179.2 1.958
2028 178.5 1.948
2029 177.9 1.938
2030 177.2 1.927


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



 
 


wds12283-6146g.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic