02291+6724 STF 262 AB (Iot Cas)

 
 
02h 29m 03.96s +67 24' 08.7" P.A. 231.00 sep 3.0 mag 4.66,6.92 Sp A4V+F5V dist. 40.73 pc (132.86 l.y.)
 
 
Coord 2000 02291+6724 Discov num STF 262 Comp AB Coord arcsec 2000 02 29 03.96 +67 24 08.7
Date first 1782 Date last 2022 Obs 270
Pa first 290 Pa last 230.8 P.A. Now (θ) 230.8°
Sep first 1.5 Sep last 2.98 Sep. Now (ρ) 2.98"
Mag pri 4.66 Mag sec 6.92 delta mag (ΔM) 2.26 Spectral class A4V+F5V (white/yellow-white)
Pri motion ra -018 Sec motion ra -018
Pri motion dec +012 Sec motion dec +012
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
02291+6724 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 12298 02 29 04 +67 24 09 CHR 6 Aa,Ab 2010 21 42 0.6 4.66 7.88 3.22 Y
Show Iot Cas 12298 02 29 04 +67 24 09 STF 262 AB 2022 270 231 3.0 4.66 6.92 2.26 Y <===
Show 12298 02 29 04 +67 24 09 STF 262 AC 2022 232 117 6.9 4.63 9.05 4.42
Show 12298 02 29 04 +67 24 09 STF 262 AD 2016 10 60 210.9 4.63 8.48 3.85
Show 12298 02 29 04 +67 24 07 STF 262 BC 2015 154 99 8.5 6.92 9.05 2.13
Show 02 29 04 +67 24 09 CTU 2 Ca,Cb 2018 5 101 0.2 4.50 6.10 1.60
Show 02 29 04 +67 24 09 STF 262 CD 2015 8 58 207.1 9.05 8.48 0.57
Sextuple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Iot Cas Constellation Cassiopeia SAO 12298 HIP 11569
Tycho2 4058-01504-1 Gaia DR2 517650349234855424 HD 15089 HR 707
GC 2952 ADS 1860 BD BD+66 213 Bayer Iota Cassiopeiae
Bayer name Iot Cas Distance 40.73 Distance ly 132.86 Bayer greek ι Cas
 
 
ORBITAL ELEMENTS
 
 
Period (P)2400y Periastron (T)940y± 47 Semi-major axis (a)6.5a
Eccentricity (e)0.4 Inclination (i)102.9°± 0.3 Longitude of periastron (ω)113.3°± 3.4
Node (Ω)188°± 0.9 Notesn ReferenceTok2021b
Equinox Last observation Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 231.1 2.863
2001 230.9 2.872
2002 230.8 2.880
2003 230.6 2.888
2004 230.5 2.896
2005 230.3 2.904
2006 230.2 2.912
2007 230.0 2.920
2008 229.9 2.928
2009 229.7 2.936
2010 229.6 2.944
2011 229.4 2.952
2012 229.3 2.960
2013 229.1 2.969
2014 229.0 2.977
2015 228.8 2.985
2016 228.7 2.993
2017 228.5 3.001
2018 228.4 3.010
2019 228.3 3.018
2020 228.1 3.026
2021 228.0 3.034
2022 227.8 3.043
2023 227.7 3.051
2024 227.6 3.059
2025 227.4 3.067
2026 227.3 3.076
2027 227.1 3.084
2028 227.0 3.092
2029 226.9 3.101
2030 226.7 3.109


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



 
 


wds02291%2B6724f.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic