19598-0957 HO 276 AB

 
 
19h 59m 47.49s -09° 57' 26.2" P.A. 109.00 sep 0.2 mag 6.22,7.83 Sp F8V dist. 22.2 pc (72.42 l.y.)
 
 
Coord 2000 19598-0957 Discov num HO  276 Comp AB Coord arcsec 2000 19 59 47.49 -09 57 26.2
Date first 1961 Date last 2019 Obs 63
Pa first 136 Pa last 109.2 P.A. Now (θ) 109.2°
Sep first 0.2 Sep last 0.239 Sep. Now (ρ) 0.239"
Mag pri 6.22 Mag sec 7.83 delta mag (ΔM) 1.61 Spectral class F8V (yellow-white)
Pri motion ra -276 Sec motion ra
Pri motion dec -401 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
19598-0957 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 163168 19 59 47 -09 57 26 HO 276 AB 2019 63 109 0.2 6.22 7.83 1.61 Y <===
Show HD 189340 163168 19 59 47 -09 57 26 HLA 22 AC 2016 2 296 10.3 4.40 7.83 3.43
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquila SAO 163168 HIP 98416 Tycho2 5742-01060-1
HD 189340 HR 7637 GC 27689 GL Gl 773.3
BD BD-10 5238 Distance 22.2 Distance ly 72.42
 
 
SUSPECTED ORBITAL ELEMENTS
 
 
Identifier19598-0957 HO 276
coord_arcsec_2000195947.49-095726.2
Period (P)4.867y± 0.004 Periastron (T)2012.022y± 0.011 Semi-major axis (a)0.1514a± 0.0013
Eccentricity (e)0.605± 0.004 Inclination (i)18.8°± 2.7 Longitude of periastron (ω)319.4°± 2.2
Node (Ω)326.6°± 1.8 Notesn ReferenceTok2017b
Equinox2000 Last observation Grade1(1=Definitive, 9=Indet.)
label theta rho
2000 110.8 0.238
2001 136.1 0.202
2002 202.9 0.085
2003 50.7 0.139
2004 90.2 0.219
2005 113.9 0.237
2006 140.5 0.192
2007 233.4 0.066
2008 58.7 0.154
2009 93.6 0.224
2010 116.9 0.235
2011 145.4 0.180
2012 279.3 0.058
2013 65.3 0.167
2014 96.9 0.229
2015 120.0 0.231
2016 151.0 0.167
2017 325.5 0.065
2018 70.9 0.179
2019 100.1 0.233
2020 123.3 0.227
2021 157.7 0.152
2022 358.0 0.081
2023 75.9 0.190
2024 103.2 0.236
2025 126.6 0.222
2026 166.0 0.135
2027 19.6 0.098
2028 80.4 0.199
2029 106.3 0.237
2030 130.2 0.215


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



 
 


wds19598-0957e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic