02422+4012 MCA 8 (12 Per)

 
 
02h 42m 14.93s +40° 11' 39.8" P.A. 49.00 sep 0.0 mag 5.50,5.90 Sp F9V dist. 24.19 pc (78.91 l.y.)
 
 
Coord 2000 02422+4012 Discov num MCA   8 Comp Coord arcsec 2000 02 42 14.93 +40 11 39.8
Date first 1973 Date last 2016 Obs 63
Pa first 309 Pa last 49 P.A. Now (θ) 49°
Sep first 0.1 Sep last 0.031 Sep. Now (ρ) 0.031"
Mag pri 5.50 Mag sec 5.90 delta mag (ΔM) 0.4 Spectral class F9V (yellow-white)
Pri motion ra -019 Sec motion ra
Pri motion dec -186 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 12 Per Var name NSV896 Per Constellation Perseus SAO 55793
HIP 12623 Tycho2 2849-02054-1 Gaia DR2 335144892337326336 HD 16739
HR 788 GC 3245 GL Gl 105.6 BD BD+39 610
Flamsteed 12 Persei Flamsteed name 12 Per FK5 2187 Distance 24.19
Distance ly 78.91
 
 
ORBITAL ELEMENTS
 
 
Period (P)330.98209d Periastron (T)1993.33956y Semi-major axis (a)53.18m± 0.15
Eccentricity (e)0.6574 Inclination (i)128.17°± 0.14 Longitude of periastron (ω)269.29°
Node (Ω)49.29° Notesn ReferenceBgn2006
Equinox Last observation2004 Grade8(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 344.5 0.054
2001-01-01 327.9 0.055
2002-01-01 311.3 0.054
2003-01-01 294.4 0.053
2004-01-01 276.5 0.051
2005-01-01 255.2 0.044
2006-01-01 208.8 0.020
2007-01-01 41.9 0.035
2008-01-01 14.6 0.049
2009-01-01 355.8 0.053
2010-01-01 338.8 0.054
2011-01-01 322.3 0.054
2012-01-01 305.7 0.054
2013-01-01 288.5 0.053
2014-01-01 269.9 0.049
2015-01-01 245.6 0.039
2016-01-01 118.6 0.012
2017-01-01 30.5 0.041
2018-01-01 7.8 0.051
2019-01-01 349.9 0.054
2020-01-01 333.2 0.054
2021-01-01 316.7 0.054
2022-01-01 299.9 0.054
2023-01-01 282.5 0.052
2024-01-01 262.8 0.047
2025-01-01 232.4 0.032
2026-01-01 59.6 0.025
2027-01-01 21.7 0.046
2028-01-01 1.5 0.052
2029-01-01 344.2 0.054
2030-01-01 327.6 0.055


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



 
 


wds02422%2B4012r.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic