19153+2454 HDS 2724 (HD 338030)

 
 
19h 15m 18.83s +24° 53' 49.4" P.A. 9.00 sep 0.1 mag 10.36,10.82 Sp M0 dist. 27.6 pc (90.03 l.y.)
 
 
Coord 2000 19153+2454 Discov num HDS2724 Comp Coord arcsec 2000 19 15 18.83 +24 53 49.4
Date first 1991 Date last 2021 Obs 12
Pa first 284 Pa last 9.2 P.A. Now (θ) 302.3°
Sep first 0.2 Sep last 0.066 Sep. Now (ρ) 0.137"
Mag pri 10.36 Mag sec 10.82 delta mag (ΔM) 0.46 Spectral class M0 (red)
Pri motion ra +239 Sec motion ra
Pri motion dec +219 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 338030 Constellation Vulpecula HIP 94622 Tycho2 2127-00939-1
Gaia DR2 2023507806418375552 HD 338030 GL Gl 751 BD BD+24 3692
Distance 27.6 Distance ly 90.03
 
 
ORBITAL ELEMENTS
 
 
Period (P)8.145y± 0.054 Periastron (T)2019.649y± 0.067 Semi-major axis (a)0.148a± 0.003
Eccentricity (e)0.527± 0.018 Inclination (i)113.7°± 1.3 Longitude of periastron (ω)133.1°± 3.8
Node (Ω)268.8°± 1.5 Notes ReferenceTok2021f
Equinox2000 Last observation2021 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 284.6 0.188
2001 275.6 0.189
2002 264.3 0.146
2003 204.7 0.036
2004 72.6 0.085
2005 12.0 0.068
2006 319.0 0.102
2007 297.7 0.151
2008 286.0 0.185
2009 276.9 0.191
2010 266.4 0.156
2011 230.8 0.053
2012 79.3 0.084
2013 22.5 0.068
2014 324.0 0.095
2015 299.9 0.144
2016 287.5 0.181
2017 278.2 0.193
2018 268.3 0.165
2019 243.4 0.072
2020 86.3 0.081
2021 32.8 0.069
2022 329.8 0.088
2023 302.3 0.137
2024 289.0 0.177
2025 279.5 0.193
2026 270.0 0.172
2027 250.7 0.091
2028 94.4 0.072
2029 42.5 0.072
2030 336.5 0.082


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



 
 


wds19153%2B2454b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic