20202-3435 I 1416 (HD 193194)

 
 
20h 20m 14.47s -34 35' 06.6" P.A. 323.00 sep 0.1 mag 7.09,8.19 Sp F8V dist. 62.19 pc (202.86 l.y.)
 
 
Coord 2000 20202-3435 Discov num I  1416 Comp Coord arcsec 2000 20 20 14.47 -34 35 06.6
Date first 1925 Date last 2021 Obs 42
Pa first 213 Pa last 322.9 P.A. Now (θ) 315.1°
Sep first 0.3 Sep last 0.092 Sep. Now (ρ) 0.172"
Mag pri 7.09 Mag sec 8.19 delta mag (ΔM) 1.1 Spectral class F8V (yellow-white)
Pri motion ra +053 Sec motion ra
Pri motion dec -060 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 193194 Constellation Sagittarius SAO 212015 HIP 100266
Tycho2 7450-01687-1 Gaia DR2 6696275578391882368 HD 193194 GC 28253
CD CD-3414287 CP CP-34 8654 Distance 62.19 Distance ly 202.86
 
 
ORBITAL ELEMENTS
 
 
Period (P)20.29y± 0.14 Periastron (T)2000.31y± 0.23 Semi-major axis (a)0.167a± 0.007
Eccentricity (e)0.887± 0.036 Inclination (i)112.9°± 2.5 Longitude of periastron (ω)38.5°± 5.8
Node (Ω)140°± 4.7 Notes ReferenceTok2021c
Equinox2000 Last observation2021 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 178.1 0.025
2001 325.6 0.075
2002 317.7 0.141
2003 314.3 0.183
2004 312.0 0.212
2005 310.2 0.233
2006 308.7 0.248
2007 307.3 0.258
2008 306.0 0.263
2009 304.7 0.264
2010 303.4 0.261
2011 302.1 0.254
2012 300.6 0.244
2013 299.1 0.231
2014 297.3 0.213
2015 295.1 0.193
2016 292.4 0.168
2017 288.6 0.139
2018 282.5 0.105
2019 269.8 0.066
2020 217.4 0.028
2021 332.9 0.046
2022 319.1 0.125
2023 315.1 0.172
2024 312.6 0.205
2025 310.7 0.228
2026 309.1 0.245
2027 307.7 0.256
2028 306.3 0.262
2029 305.1 0.264
2030 303.8 0.262


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



 
 


wds20202-3435c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic