20347-6319 HU 1615 (HD 195429)

 
 
20h 34m 44.16s -63 18' 42.0" P.A. 287.00 sep 0.2 mag 8.07,8.21 Sp A3V dist. 183.82 pc (599.62 l.y.)
 
 
Coord 2000 20347-6319 Discov num HU 1615 Comp Coord arcsec 2000 20 34 44.16 -63 18 42.0
Date first 1914 Date last 2018 Obs 17
Pa first 359 Pa last 287.4 P.A. Now (θ) 287.4°
Sep first 0.4 Sep last 0.199 Sep. Now (ρ) 0.199"
Mag pri 8.07 Mag sec 8.21 delta mag (ΔM) 0.14 Spectral class A3V (white)
Pri motion ra +031 Sec motion ra
Pri motion dec -006 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 195429 Constellation Pavo SAO 254818 HIP 101543
Tycho2 9104-01084-1 Gaia DR2 6429702282772505472 HD 195429 GC 28584
CP CP-63 4590 Distance 183.82 Distance ly 599.62
 
 
ORBITAL ELEMENTS
 
 
Period (P)357.17y Periastron (T)1999.08y Semi-major axis (a)0.387a
Eccentricity (e)0.851 Inclination (i)46° Longitude of periastron (ω)263°
Node (Ω)257.5° Notes ReferenceTok2015c
Equinox2000 Last observation2014 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 187.9 0.043
2001 212.7 0.053
2002 228.6 0.066
2003 239.0 0.080
2004 246.5 0.093
2005 252.1 0.105
2006 256.6 0.117
2007 260.3 0.127
2008 263.4 0.137
2009 266.2 0.147
2010 268.6 0.156
2011 270.7 0.165
2012 272.7 0.173
2013 274.4 0.181
2014 276.0 0.188
2015 277.5 0.195
2016 278.9 0.202
2017 280.2 0.209
2018 281.5 0.215
2019 282.6 0.221
2020 283.7 0.227
2021 284.8 0.233
2022 285.7 0.239
2023 286.7 0.244
2024 287.6 0.250
2025 288.5 0.255
2026 289.3 0.260
2027 290.1 0.265
2028 290.9 0.270
2029 291.6 0.275
2030 292.3 0.279


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



 
 


wds20347-6319b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic