16514-2450 B 2397 (HD 151902)

 
 
16h 51m 21.52s -24° 50' 03.0" P.A. 311.00 sep 0.1 mag 8.20,8.30 Sp F6V dist. 233.64 pc (762.13 l.y.)
 
 
Coord 2000 16514-2450 Discov num B  2397 Comp Coord arcsec 2000 16 51 21.52 -24 50 03.0
Date first 1937 Date last 2021 Obs 14
Pa first 27 Pa last 310.9 P.A. Now (θ) 305.3°
Sep first 0.2 Sep last 0.076 Sep. Now (ρ) 0.076"
Mag pri 8.20 Mag sec 8.30 delta mag (ΔM) 0.1 Spectral class F6V (yellow-white)
Pri motion ra +038 Sec motion ra
Pri motion dec -011 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 151902 Constellation Scorpius SAO 184715 HIP 82474
Tycho2 6813-01435-1 Gaia DR2 6046823849775642112 HD 151902 GC 22673
CD CD-2412876 CP CP-24 5756 Distance 233.64 Distance ly 762.13
 
 
ORBITAL ELEMENTS
 
 
Period (P)69.4y± 3.4 Periastron (T)2021.8y± 9.3 Semi-major axis (a)0.1534a± 0.0024
Eccentricity (e)0.043± 0.034 Inclination (i)120.5°± 1.6 Longitude of periastron (ω)76.6°± 52
Node (Ω)22.4°± 2.9 Notes ReferenceTok2019c
Equinox Last observation2018 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 46.1 0.129
2001 42.6 0.134
2002 39.3 0.139
2003 36.2 0.143
2004 33.2 0.147
2005 30.4 0.149
2006 27.7 0.151
2007 25.0 0.152
2008 22.3 0.152
2009 19.6 0.150
2010 16.8 0.148
2011 13.9 0.145
2012 10.9 0.142
2013 7.7 0.137
2014 4.3 0.131
2015 0.5 0.125
2016 356.3 0.118
2017 351.7 0.111
2018 346.3 0.104
2019 340.2 0.097
2020 333.1 0.090
2021 324.9 0.084
2022 315.6 0.079
2023 305.3 0.076
2024 294.3 0.075
2025 283.2 0.075
2026 272.7 0.078
2027 263.1 0.083
2028 254.6 0.088
2029 247.2 0.095
2030 240.8 0.102


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



 
 


wds16514-2450a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic