19072+2053 LDS 1017 (HD 349726)

 
 
19h 07m 13.20s +20° 52' 37.3" P.A. 290.00 sep 113.8 mag 10.95,10.99 Sp M2V+M2V dist. 8.51 pc (27.76 l.y.)
 
 
Coord 2000 19072+2053 Discov num LDS1017 Comp Coord arcsec 2000 19 07 13.20 +20 52 37.3
Date first 1897 Date last 2019 Obs 28
Pa first 292 Pa last 290.1 P.A. Now (θ) 290.1°
Sep first 115.4 Sep last 113.82 Sep. Now (ρ) 113.82"
Mag pri 10.95 Mag sec 10.99 delta mag (ΔM) 0.04 Spectral class M2V+M2V (red/red)
Pri motion ra -481 Sec motion ra -478
Pri motion dec -333 Sec motion dec -349
Notes N O W T (See Notes, Orbital solution, , Parallax indicates physical)
rPM=0.028 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 349726 Constellation Sagitta HIP 93873 Tycho2 1598-00578-1
HD 349726 GL Gl 745A Distance 8.51 Distance ly 27.76
 
 
ORBITAL ELEMENTS
 
 
Period (P)360c Periastron (T)8254y Semi-major axis (a)117.9a
Eccentricity (e)0.64 Inclination (i)153° Longitude of periastron (ω)231°
Node (Ω)206° Notesn ReferenceKiy2012
Equinox Last observation2007 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 110.6 115.415
2001 110.6 115.405
2002 110.6 115.395
2003 110.6 115.384
2004 110.6 115.374
2005 110.6 115.364
2006 110.6 115.353
2007 110.6 115.343
2008 110.6 115.333
2009 110.6 115.322
2010 110.6 115.312
2011 110.6 115.302
2012 110.6 115.291
2013 110.6 115.281
2014 110.5 115.271
2015 110.5 115.261
2016 110.5 115.250
2017 110.5 115.240
2018 110.5 115.230
2019 110.5 115.219
2020 110.5 115.209
2021 110.5 115.199
2022 110.5 115.188
2023 110.5 115.178
2024 110.5 115.168
2025 110.5 115.157
2026 110.5 115.147
2027 110.5 115.137
2028 110.4 115.126
2029 110.4 115.116
2030 110.4 115.106


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



 
 


wds19072%2B2053b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic