19316+1747 STF 2536 (HD 231683)

 
 
19h 31m 37.80s +17° 46' 58.6" P.A. 120.00 sep 1.8 mag 8.40,11.38 Sp G2V dist. 50.1 pc (163.43 l.y.)
 
 
Coord 2000 19316+1747 Discov num STF2536 Comp Coord arcsec 2000 19 31 37.80 +17 46 58.6
Date first 1829 Date last 2018 Obs 79
Pa first 35 Pa last 119.8 P.A. Now (θ) 119.8°
Sep first 1.8 Sep last 1.814 Sep. Now (ρ) 1.814"
Mag pri 8.40 Mag sec 11.38 delta mag (ΔM) 2.98 Spectral class G2V (yellow)
Pri motion ra -007 Sec motion ra +005
Pri motion dec -120 Sec motion dec -116
Notes N O (See Notes, Orbital solution)
rPM=0.105 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 231683 Constellation Sagitta SAO 104937 HIP 96037
Tycho2 1605-01006-1 Gaia DR2 4322958461161693184 HD 231683 GC 26971
ADS 12557 BD BD+17 3992 Distance 50.1 Distance ly 163.43
 
 
ORBITAL ELEMENTS
 
 
Period (P)945.0599y± 467.1613 Periastron (T)1826.5646y± 257.0777 Semi-major axis (a)2.30225a± 0.5778
Eccentricity (e)0.23045± 0.24109 Inclination (i)44.176°± 10.986 Longitude of periastron (ω)320.281°± 50.824
Node (Ω)70.606°± 53.239 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 113.9 1.832
2001 114.3 1.831
2002 114.7 1.830
2003 115.1 1.828
2004 115.5 1.827
2005 116.0 1.825
2006 116.4 1.824
2007 116.8 1.823
2008 117.2 1.822
2009 117.7 1.820
2010 118.1 1.819
2011 118.5 1.818
2012 118.9 1.816
2013 119.4 1.815
2014 119.8 1.814
2015 120.2 1.813
2016 120.7 1.812
2017 121.1 1.810
2018 121.5 1.809
2019 122.0 1.808
2020 122.4 1.807
2021 122.8 1.806
2022 123.2 1.805
2023 123.7 1.804
2024 124.1 1.803
2025 124.5 1.802
2026 125.0 1.801
2027 125.4 1.800
2028 125.8 1.799
2029 126.3 1.798
2030 126.7 1.797


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


 
  


wds19316%2B1747b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic