16365-6700 HDS 2347 (HD 148976)

 
 
16h 36m 32.05s -67° 00' 17.5" P.A. 118.00 sep 0.1 mag 7.25,9.83 Sp A1V dist. 138.89 pc (453.06 l.y.)
 
 
Coord 2000 16365-6700 Discov num HDS2347 Comp Coord arcsec 2000 16 36 32.05 -67 00 17.5
Date first 1991 Date last 2021 Obs 5
Pa first 233 Pa last 118.1 P.A. Now (θ) 118.1°
Sep first 0.2 Sep last 0.13 Sep. Now (ρ) 0.13"
Mag pri 7.25 Mag sec 9.83 delta mag (ΔM) 2.58 Spectral class A1V (white)
Pri motion ra -025 Sec motion ra
Pri motion dec -024 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 148976 Constellation Triangulum Australe SAO 253618 HIP 81320
Tycho2 9050-01405-1 Gaia DR2 5815560339285831168 HD 148976 GC 22277
CP CP-66 2980 Distance 138.89 Distance ly 453.06
 
 
ORBITAL ELEMENTS
 
 
Period (P)85y Periastron (T)2026.41y Semi-major axis (a)0.182a
Eccentricity (e)0.2 Inclination (i)141.1° Longitude of periastron (ω)84.2°
Node (Ω)162.3° Notes ReferenceTok2021f
Equinox Last observation2021 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 201.9 0.179
2001 198.6 0.180
2002 195.3 0.180
2003 192.0 0.181
2004 188.7 0.181
2005 185.4 0.181
2006 182.1 0.180
2007 178.8 0.180
2008 175.5 0.179
2009 172.1 0.177
2010 168.7 0.175
2011 165.2 0.173
2012 161.6 0.171
2013 157.8 0.168
2014 153.9 0.164
2015 149.9 0.160
2016 145.6 0.156
2017 141.1 0.152
2018 136.3 0.147
2019 131.1 0.142
2020 125.6 0.137
2021 119.6 0.132
2022 113.2 0.127
2023 106.3 0.123
2024 99.0 0.119
2025 91.2 0.116
2026 83.1 0.114
2027 74.8 0.113
2028 66.5 0.114
2029 58.4 0.115
2030 50.5 0.118


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



 
 


wds16365-6700a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic