04246+3358 STT 81 AB (56 Per)

 
 
04h 24m 37.46s +33° 57' 34.9" P.A. 13.00 sep 4.2 mag 5.84,9.25 Sp F4V dist. 40.62 pc (132.5 l.y.)
 
 
Coord 2000 04246+3358 Discov num STT  81 Comp AB Coord arcsec 2000 04 24 37.46 +33 57 34.9
Date first 1847 Date last 2017 Obs 95
Pa first 48 Pa last 12.5 P.A. Now (θ) 12.5°
Sep first 4.3 Sep last 4.17 Sep. Now (ρ) 4.17"
Mag pri 5.84 Mag sec 9.25 delta mag (ΔM) 3.41 Spectral class F4V (yellow-white)
Pri motion ra +055 Sec motion ra +055
Pri motion dec -083 Sec motion dec -083
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
04246+3358 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 57216 04 24 37 +33 57 35 BAS 4 Aa,Ab 1999 1 306 0.4 5.84 15.00 9.16
Show 56 Per 57216 04 24 37 +33 57 35 STT 81 AB 2017 95 13 4.2 5.84 9.25 3.41 Y <===
Show 04 24 38 +33 57 39 BAS 4 Ba,Bb 2002 3 292 0.6 9.60 11.30 1.70
Quadruple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 56 Per Var name NSV1592 Per Constellation Perseus SAO 57216
HIP 20591 Tycho2 2380-02429-1 Gaia DR2 172817599818083712 HD 27786
HR 1379 GC 5335 ADS 3188 BD BD+33 854
Flamsteed 56 Persei Flamsteed name 56 Per Distance 40.62 Distance ly 132.5
 
 
ORBITAL ELEMENTS
 
 
Period (P)1885.9592y± 944.0385 Periastron (T)1743.5713y± 138.3472 Semi-major axis (a)16.46579a± 10.41513
Eccentricity (e)0.88101± 0.10793 Inclination (i)100.726°± 11.069 Longitude of periastron (ω)286.697°± 24.456
Node (Ω)70.746°± 23.729 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 16.5 4.247
2001 16.2 4.244
2002 16.0 4.241
2003 15.7 4.237
2004 15.4 4.234
2005 15.2 4.231
2006 14.9 4.228
2007 14.7 4.226
2008 14.4 4.223
2009 14.2 4.220
2010 13.9 4.217
2011 13.7 4.215
2012 13.4 4.212
2013 13.1 4.209
2014 12.9 4.207
2015 12.6 4.205
2016 12.4 4.202
2017 12.1 4.200
2018 11.9 4.198
2019 11.6 4.195
2020 11.3 4.193
2021 11.1 4.191
2022 10.8 4.189
2023 10.6 4.187
2024 10.3 4.185
2025 10.0 4.183
2026 9.8 4.182
2027 9.5 4.180
2028 9.3 4.178
2029 9.0 4.176
2030 8.7 4.175


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



 
 


wds04246%2B3358a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic