12194+1744 A 2059 (HD 107169)

 
 
12h 19m 22.27s +17° 43' 43.6" P.A. 43.00 sep 0.5 mag 8.33,10.22 Sp F5 dist. 77.34 pc (252.28 l.y.)
 
 
Coord 2000 12194+1744 Discov num A  2059 Comp Coord arcsec 2000 12 19 22.27 +17 43 43.6
Date first 1909 Date last 2018 Obs 42
Pa first 314 Pa last 42.6 P.A. Now (θ) 42.6°
Sep first 0.6 Sep last 0.49 Sep. Now (ρ) 0.49"
Mag pri 8.33 Mag sec 10.22 delta mag (ΔM) 1.89 Spectral class F5 (yellow-white)
Pri motion ra +027 Sec motion ra
Pri motion dec -060 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 107169 Constellation Coma Berenices SAO 100040 HIP 60091
Tycho2 1445-00682-1 Gaia DR2 3947128511856120448 HD 107169 ADS 8508
BD BD+18 2589 Distance 77.34 Distance ly 252.28
 
 
ORBITAL ELEMENTS
 
 
Period (P)244.8y Periastron (T)2040.96y Semi-major axis (a)0.647a
Eccentricity (e)0.677 Inclination (i)60.1° Longitude of periastron (ω)82.2°
Node (Ω)61.1° Notes ReferenceLin2017a
Equinox2000 Last observation2016 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 24.2 0.493
2001 25.1 0.491
2002 26.1 0.490
2003 27.0 0.488
2004 28.0 0.486
2005 28.9 0.484
2006 29.9 0.482
2007 30.9 0.479
2008 31.9 0.477
2009 32.9 0.474
2010 33.9 0.471
2011 34.9 0.468
2012 35.9 0.464
2013 37.0 0.461
2014 38.1 0.457
2015 39.1 0.452
2016 40.3 0.448
2017 41.4 0.442
2018 42.6 0.437
2019 43.8 0.431
2020 45.0 0.425
2021 46.3 0.418
2022 47.6 0.410
2023 49.0 0.402
2024 50.4 0.393
2025 51.9 0.384
2026 53.5 0.373
2027 55.1 0.362
2028 56.9 0.350
2029 58.8 0.337
2030 60.9 0.322


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



 
 


wds12194%2B1744a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic