21296+1739 TSN 198

 
 
21h 29m 36.80s +17° 38' 35.9" P.A. 194.00 sep 0.0 mag 11.10,11.10 Sp M3.0V dist. 6.7 pc (21.86 l.y.)
 
 
Coord 2000 21296+1739 Discov num TSN 198 Comp Coord arcsec 2000 21 29 36.80 +17 38 35.9
Date first 2019 Date last 2020 Obs 3
Pa first 96 Pa last 193.9 P.A. Now (θ) 193.9°
Sep first 0.0 Sep last 0.025 Sep. Now (ρ) 0.025"
Mag pri 11.10 Mag sec 11.10 delta mag (ΔM) 0 Spectral class M3.0V (red)
Pri motion ra +101 Sec motion ra
Pri motion dec +038 Sec motion dec
Notes O P (Orbital solution, 100-year proper motion)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pegasus HIP 106106 Distance 6.7 Distance ly 21.86
 
 
ORBITAL ELEMENTS
 
 
Period (P)0.146y Periastron (T)2021.2412y± 0.0017 Semi-major axis (a)0.0339a± 0.0012
Eccentricity (e)0.374± 0 Inclination (i)133.3°± 3 Longitude of periastron (ω)300°
Node (Ω)222.2°± 3.6 Notes ReferenceTok2024b
Equinox2000 Last observation2022 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 89.7 0.037
2001 125.5 0.030
2002 174.0 0.028
2003 230.4 0.023
2004 0.5 0.021
2005 47.1 0.038
2006 72.5 0.040
2007 101.1 0.034
2008 142.1 0.029
2009 192.7 0.028
2010 267.0 0.017
2011 24.5 0.029
2012 56.7 0.040
2013 82.0 0.038
2014 114.3 0.032
2015 160.1 0.028
2016 212.6 0.026
2017 326.8 0.016
2018 38.8 0.035
2019 65.7 0.040
2020 92.4 0.036
2021 129.5 0.030
2022 178.6 0.028
2023 237.6 0.022
2024 8.1 0.023
2025 49.6 0.038
2026 74.8 0.039
2027 104.2 0.034
2028 146.5 0.029
2029 197.5 0.027
2030 280.4 0.016
2031 28.6 0.030
2032 59.0 0.040
2033 84.5 0.038
2034 117.9 0.031
2035 164.7 0.028
2036 218.1 0.025
2037 340.2 0.017
2038 41.7 0.036
2039 68.0 0.040
2040 95.2 0.036
2041 133.6 0.029
2042 183.3 0.028
2043 245.9 0.020
2044 14.4 0.025
2045 52.0 0.039
2046 77.1 0.039
2047 107.5 0.033
2048 151.0 0.028
2049 202.4 0.027
2050 295.7 0.015


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds21296%2B1739a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic