19563-3137 TOK 698 (HD 188432)

 
 
19h 56m 16.66s -31° 36' 48.7" P.A. 237.00 sep 0.1 mag 8.30,9.70 Sp G3V dist. 58.93 pc (192.23 l.y.)
 
 
Coord 2000 19563-3137 Discov num TOK 698 Comp Coord arcsec 2000 19 56 16.66 -31 36 48.7
Date first 2015 Date last 2023 Obs 11
Pa first 59 Pa last 236.9 P.A. Now (θ) 238.5°
Sep first 0.1 Sep last 0.053 Sep. Now (ρ) 0.12"
Mag pri 8.30 Mag sec 9.70 delta mag (ΔM) 1.4 Spectral class G3V (yellow)
Pri motion ra -031 Sec motion ra
Pri motion dec -171 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 188432 Constellation Sagittarius SAO 211668 HIP 98108
Tycho2 7439-00300-1 Gaia DR2 6748261690744963840 HD 188432 CD CD-3117176
CP CP-31 6177 Distance 58.93 Distance ly 192.23
 
 
ORBITAL ELEMENTS
 
 
Period (P)12.79y± 0.47 Periastron (T)2015.93y± 0.19 Semi-major axis (a)0.1085a± 0.004
Eccentricity (e)0.164± 0.049 Inclination (i)90.8°± 0.5 Longitude of periastron (ω)44°
Node (Ω)59.6°± 0.4 Notesn ReferenceTok2024c
Equinox Last observation Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 61.2 0.050
2001 60.1 0.085
2002 59.6 0.094
2003 59.0 0.071
2004 56.0 0.020
2005 241.5 0.039
2006 240.2 0.087
2007 239.8 0.114
2008 239.4 0.120
2009 239.1 0.106
2010 238.5 0.075
2011 236.7 0.033
2012 65.9 0.015
2013 60.8 0.059
2014 60.0 0.089
2015 59.5 0.092
2016 58.7 0.062
2017 49.6 0.008
2018 241.0 0.051
2019 240.1 0.095
2020 239.7 0.117
2021 239.4 0.118
2022 239.0 0.100
2023 238.3 0.067
2024 235.4 0.023
2025 63.3 0.025
2026 60.6 0.067
2027 59.9 0.092
2028 59.4 0.089
2029 58.5 0.052
2030 253.9 0.005
2031 240.7 0.061
2032 240.0 0.101
2033 239.6 0.119
2034 239.3 0.116
2035 238.9 0.094
2036 238.1 0.058
2037 232.3 0.013
2038 62.1 0.034
2039 60.4 0.074
2040 59.8 0.094
2041 59.2 0.084
2042 58.0 0.041
2043 243.9 0.018
2044 240.5 0.071
2045 239.9 0.107
2046 239.5 0.120
2047 239.2 0.113
2048 238.8 0.088
2049 237.7 0.049
2050 210.6 0.003


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds19563-3137c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic