03130+4417 STT 51 (HD 19822)

 
 
03h 12m 57.08s +44° 17' 14.7" P.A. 353.00 sep 0.6 mag 8.51,8.74 Sp G0 dist. 115.61 pc (377.12 l.y.)
 
 
Coord 2000 03130+4417 Discov num STT  51 Comp Coord arcsec 2000 03 12 57.08 +44 17 14.7
Date first 1843 Date last 2019 Obs 58
Pa first 300 Pa last 352.7 P.A. Now (θ) 352.7°
Sep first 1.2 Sep last 0.57 Sep. Now (ρ) 0.57"
Mag pri 8.51 Mag sec 8.74 delta mag (ΔM) 0.23 Spectral class G0 (yellow)
Pri motion ra +091 Sec motion ra +091
Pri motion dec -024 Sec motion dec -024
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 19822 Constellation Perseus SAO 38648 HIP 14969
Tycho2 2860-01435-1 Gaia DR2 240858982821530624 HD 19822 ADS 2397
BD BD+43 653 Distance 115.61 Distance ly 377.12
 
 
ORBITAL ELEMENTS
 
 
Period (P)598y± 117 Periastron (T)2051.69y± 6.74 Semi-major axis (a)0.998a± 0.106
Eccentricity (e)0.718± 0.099 Inclination (i)43°± 16 Longitude of periastron (ω)308.9°± 17
Node (Ω)148.6°± 30.7 Notes ReferenceLin2012a
Equinox2000 Last observation2009 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 335.4 0.745
2001 336.0 0.735
2002 336.5 0.724
2003 337.1 0.714
2004 337.7 0.704
2005 338.4 0.693
2006 339.0 0.682
2007 339.7 0.671
2008 340.4 0.660
2009 341.1 0.649
2010 341.8 0.638
2011 342.6 0.626
2012 343.4 0.614
2013 344.2 0.603
2014 345.1 0.591
2015 346.0 0.579
2016 346.9 0.566
2017 347.9 0.554
2018 348.9 0.542
2019 349.9 0.529
2020 351.1 0.516
2021 352.2 0.503
2022 353.5 0.490
2023 354.8 0.477
2024 356.2 0.464
2025 357.6 0.450
2026 359.2 0.437
2027 0.8 0.423
2028 2.6 0.409
2029 4.5 0.396
2030 6.5 0.382


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



 
 


wds03130%2B4417b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic