16253-4909 COO 197 AB (HD 147633)

 
 
16h 25m 17.59s -49° 08' 52.3" P.A. 89.00 sep 2.4 mag 8.11,8.23 Sp K0/1V dist. 46.99 pc (153.28 l.y.)
 
 
Coord 2000 16253-4909 Discov num COO 197 Comp AB Coord arcsec 2000 16 25 17.59 -49 08 52.3
Date first 1895 Date last 2021 Obs 65
Pa first 207 Pa last 89.2 P.A. Now (θ) 89.2°
Sep first 1.6 Sep last 2.396 Sep. Now (ρ) 2.396"
Mag pri 8.11 Mag sec 8.23 delta mag (ΔM) 0.12 Spectral class K0/1V (yellow-orange)
Pri motion ra -092 Sec motion ra -092
Pri motion dec -092 Sec motion dec -084
Notes N O (See Notes, Orbital solution)
rPM=0.061 (< 0.3, Physical double)
This double is physical.
 
 
16253-4909 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 147633 16 25 18 -49 08 52 COO 197 AB 2021 65 89 2.4 8.11 8.23 0.12 Y <===
Show 16 25 18 -49 08 52 COO 197 AC 2010 16 77 20.7 8.11 12.00 3.89
Show 226738 16 25 18 -49 08 53 CVN 27 Ba,Bb 2021 21 115 0.1 8.23 Y
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 147633 Constellation Norma HIP 80448 Tycho2 8320-02096-1
Gaia DR2 5941405213211343616 HD 147633 CD CD-4810809 CP CP-48 8449
Distance 46.99 Distance ly 153.28
 
 
ORBITAL ELEMENTS
 
 
Period (P)727.1805y± 326.7926 Periastron (T)1967.5064y± 118.846 Semi-major axis (a)3.06957a± 0.8888
Eccentricity (e)0.11545± 0.55601 Inclination (i)124.505°± 13.898 Longitude of periastron (ω)291.245°± 52.788
Node (Ω)69.493°± 14.372 Notes ReferenceIzm2019
Equinox Last observation2015 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 102.1 2.152
2001 101.5 2.165
2002 100.9 2.179
2003 100.4 2.192
2004 99.8 2.206
2005 99.3 2.219
2006 98.8 2.232
2007 98.3 2.246
2008 97.7 2.259
2009 97.2 2.272
2010 96.7 2.285
2011 96.2 2.298
2012 95.7 2.311
2013 95.2 2.324
2014 94.8 2.337
2015 94.3 2.350
2016 93.8 2.363
2017 93.3 2.375
2018 92.9 2.388
2019 92.4 2.400
2020 92.0 2.413
2021 91.5 2.425
2022 91.1 2.437
2023 90.6 2.449
2024 90.2 2.461
2025 89.8 2.473
2026 89.3 2.484
2027 88.9 2.496
2028 88.5 2.508
2029 88.1 2.519
2030 87.7 2.530


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



 
 


wds16253-4909f.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic