03337+5752 CHR 117 (HD 21794)

 
 
03h 33m 41.23s +57° 52' 07.1" P.A. 259.00 sep 0.1 mag 6.36,6.60 Sp F7V dist. 66.93 pc (218.33 l.y.)
 
 
Coord 2000 03337+5752 Discov num CHR 117 Comp Coord arcsec 2000 03 33 41.23 +57 52 07.1
Date first 1985 Date last 2009 Obs 22
Pa first 138 Pa last 259.1 P.A. Now (θ) 241°
Sep first 0.1 Sep last 0.142 Sep. Now (ρ) 0.137"
Mag pri 6.36 Mag sec 6.60 delta mag (ΔM) 0.24 Spectral class F7V (yellow-white)
Pri motion ra +007 Sec motion ra
Pri motion dec +040 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 21794 Constellation Camelopardalis SAO 24098 HIP 16602
Tycho2 3724-01137-1 Gaia DR2 449812375885626496 HD 21794 HR 1071
GC 4226 BD BD+57 730 FK5 2252 Distance 66.93
Distance ly 218.33
 
 
ORBITAL ELEMENTS
 
 
Period (P)14.47y± 0.07 Periastron (T)1990.15y± 0.03 Semi-major axis (a)0.12a± 0.001
Eccentricity (e)0.35± 0.01 Inclination (i)46°± 1 Longitude of periastron (ω)236°± 1
Node (Ω)235°± 1 Notesn ReferenceBag2002
Equinox Last observation1998 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 327.4 0.102
2001 350.9 0.098
2002 15.5 0.097
2003 40.6 0.094
2004 71.3 0.078
2005 126.2 0.057
2006 188.4 0.074
2007 217.6 0.107
2008 234.1 0.130
2009 246.7 0.141
2010 258.1 0.143
2011 269.8 0.138
2012 282.9 0.128
2013 298.4 0.117
2014 317.3 0.106
2015 339.6 0.099
2016 3.9 0.097
2017 28.6 0.097
2018 55.4 0.088
2019 95.7 0.065
2020 163.8 0.061
2021 206.5 0.092
2022 227.1 0.121
2023 241.0 0.137
2024 252.7 0.143
2025 264.2 0.141
2026 276.5 0.133
2027 290.7 0.122
2028 308.0 0.111
2029 328.7 0.102
2030 352.4 0.098


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



 
 


wds03337%2B5752a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic