12428-5557 KOU 15 (HD 110461)

 
 
12h 42m 49.80s -55° 56' 49.1" P.A. 211.00 sep 0.1 mag 6.49,7.46 Sp B9V dist. 108.46 pc (353.8 l.y.)
 
 
Coord 2000 12428-5557 Discov num KOU  15 Comp Coord arcsec 2000 12 42 49.80 -55 56 49.1
Date first 2000 Date last 2021 Obs 6
Pa first 13 Pa last 211 P.A. Now (θ) 211°
Sep first 0.2 Sep last 0.119 Sep. Now (ρ) 0.119"
Mag pri 6.49 Mag sec 7.46 delta mag (ΔM) 0.97 Spectral class B9V (blue-white)
Pri motion ra -035 Sec motion ra
Pri motion dec -017 Sec motion dec
Notes O K (Orbital solution, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 110461 Constellation Crux SAO 240176 HIP 62026
Tycho2 8651-02435-1 Gaia DR2 6073279508288863744 HD 110461 HR 4832
GC 17288 CP CP-55 5194 Distance 108.46 Distance ly 353.8
 
 
ORBITAL ELEMENTS
 
 
Period (P)40y Periastron (T)2025.42y Semi-major axis (a)0.2a
Eccentricity (e)0.228 Inclination (i)113.3° Longitude of periastron (ω)188.9°
Node (Ω)5.8° Notes ReferenceTok2021f
Equinox Last observation2021 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 15.6 0.218
2001 12.8 0.229
2002 10.3 0.237
2003 7.9 0.243
2004 5.6 0.245
2005 3.2 0.244
2006 0.9 0.241
2007 358.4 0.234
2008 355.8 0.226
2009 352.9 0.214
2010 349.7 0.200
2011 346.0 0.184
2012 341.4 0.166
2013 335.7 0.146
2014 328.2 0.126
2015 317.9 0.107
2016 303.4 0.090
2017 283.7 0.079
2018 260.8 0.078
2019 240.0 0.087
2020 224.0 0.101
2021 212.4 0.118
2022 203.7 0.134
2023 196.7 0.146
2024 190.5 0.153
2025 184.7 0.154
2026 178.7 0.149
2027 172.0 0.137
2028 163.6 0.121
2029 152.3 0.102
2030 136.1 0.084


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



 
 


wds12428-5557a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic