12372+2112 STF 1663 (HD 109782)

 
 
12h 37m 10.81s +21° 11' 52.5" P.A. 65.00 sep 0.5 mag 8.03,9.16 Sp F3V dist. 187.27 pc (610.87 l.y.)
 
 
Coord 2000 12372+2112 Discov num STF1663 Comp Coord arcsec 2000 12 37 10.81 +21 11 52.5
Date first 1830 Date last 2017 Obs 137
Pa first 118 Pa last 65.4 P.A. Now (θ) 65.4°
Sep first 0.8 Sep last 0.537 Sep. Now (ρ) 0.537"
Mag pri 8.03 Mag sec 9.16 delta mag (ΔM) 1.13 Spectral class F3V (yellow-white)
Pri motion ra -012 Sec motion ra -012
Pri motion dec -023 Sec motion dec -023
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 109782 Constellation Coma Berenices SAO 82402 HIP 61584
Tycho2 1448-02165-1 Gaia DR2 3949357634242479104 HD 109782 GC 17190
ADS 8611 BD BD+21 2436 Distance 187.27 Distance ly 610.87
 
 
ORBITAL ELEMENTS
 
 
Period (P)986y Periastron (T)1671y Semi-major axis (a)0.701a
Eccentricity (e)0.07 Inclination (i)141.5° Longitude of periastron (ω)280.9°
Node (Ω)113.7° Notesn ReferenceZir2013a
Equinox2000 Last observation2010 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 73.0 0.646
2001 72.7 0.646
2002 72.4 0.645
2003 72.0 0.644
2004 71.7 0.644
2005 71.4 0.643
2006 71.0 0.642
2007 70.7 0.641
2008 70.3 0.641
2009 70.0 0.640
2010 69.7 0.639
2011 69.3 0.639
2012 69.0 0.638
2013 68.6 0.637
2014 68.3 0.636
2015 67.9 0.636
2016 67.6 0.635
2017 67.2 0.634
2018 66.9 0.634
2019 66.5 0.633
2020 66.2 0.632
2021 65.8 0.631
2022 65.5 0.631
2023 65.1 0.630
2024 64.8 0.629
2025 64.4 0.629
2026 64.1 0.628
2027 63.7 0.627
2028 63.4 0.627
2029 63.0 0.626
2030 62.6 0.625


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


 
  


wds12372%2B2112a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic