01437+5041 CIA 6 (Phi Per)

 
 
01h 43m 39.63s +50 41' 19.4" P.A. 227.00 sep 0.0 mag 4.06,7.80 Sp Be+sdO dist. 220.26 pc (718.49 l.y.)
 
 
Coord 2000 01437+5041 Discov num CIA   6 Comp Coord arcsec 2000 01 43 39.63 +50 41 19.4
Date first 2004 Date last 2013 Obs 16
Pa first 289 Pa last 226.6 P.A. Now (θ) 226.6°
Sep first 0.0 Sep last 0.001 Sep. Now (ρ) 0.001"
Mag pri 4.06 Mag sec 7.80 delta mag (ΔM) 3.74 Spectral class Be+sdO (blue-white)
Pri motion ra +025 Sec motion ra
Pri motion dec -014 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Phi Per Constellation Perseus SAO 22554 HIP 8068
Tycho2 3291-02118-1 Gaia DR2 405987526028673536 HD 10516 HR 496
GC 2102 BD BD+49 444 Bayer Phi Persei Bayer name Phi Per
FK5 57 Distance 220.26 Distance ly 718.49 Bayer greek φ Per
 
 
ORBITAL ELEMENTS
 
 
Period (P)126.6982d Periastron (T)56110.03d (2012.5y)± 0.08 Semi-major axis (a)5.89m± 0.02
Eccentricity (e)0 Inclination (i)77.6°± 0.3 Longitude of periastron (ω)
Node (Ω)295.7°± 0.3 Notesn ReferenceCIA2015a
Equinox2000 Last observation2013 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000-01-01 293.0 0.006
2001-01-01 278.8 0.004
2002-01-01 176.4 0.001
2003-01-01 126.2 0.005
2004-01-01 115.4 0.006
2005-01-01 104.2 0.004
2006-01-01 45.0 0.001
2007-01-01 311.1 0.004
2008-01-01 297.8 0.006
2009-01-01 288.0 0.005
2010-01-01 258.0 0.002
2011-01-01 138.8 0.003
2012-01-01 120.4 0.006
2013-01-01 111.0 0.006
2014-01-01 92.6 0.003
2015-01-01 333.4 0.002
2016-01-01 303.4 0.005
2017-01-01 293.6 0.006
2018-01-01 280.3 0.004
2019-01-01 186.4 0.001
2020-01-01 127.2 0.004
2021-01-01 116.0 0.006
2022-01-01 105.2 0.005
2023-01-01 55.0 0.001
2024-01-01 312.6 0.004
2025-01-01 298.4 0.006
2026-01-01 288.7 0.005
2027-01-01 262.4 0.002
2028-01-01 141.3 0.003
2029-01-01 121.1 0.005
2030-01-01 111.6 0.006


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



 
 


wds01437%2B5041a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic