02124+3018 STF 227 (Iot Tri)

 
 
02h 12m 22.28s +30° 18' 11.1" P.A. 67.00 sep 4.0 mag 5.26,6.67 Sp G5III+F6V dist. 89.13 pc (290.74 l.y.)
 
 
Coord 2000 02124+3018 Discov num STF 227 Comp Coord arcsec 2000 02 12 22.28 +30 18 11.1
Date first 1821 Date last 2022 Obs 264
Pa first 78 Pa last 67.2 P.A. Now (θ) 67.2°
Sep first 3.9 Sep last 4.01 Sep. Now (ρ) 4.01"
Mag pri 5.26 Mag sec 6.67 delta mag (ΔM) 1.41 Spectral class G5III+F6V (yellow/yellow-white)
Pri motion ra -065 Sec motion ra -061
Pri motion dec -059 Sec motion dec -047
Notes N O (See Notes, Orbital solution)
rPM=0.144 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Iot Tri Var name TZ Tri Constellation Triangulum SAO 55347
HIP 10280 Tycho2 2309-01821-1 Gaia DR2 300312157810876544 HD 13480
HR 642 GC 2633 ADS 1697 BD BD+29 371
Bayer Iota Trianguli Bayer name Iot Tri Flamsteed 6 Trianguli Flamsteed name 6 Tri
Distance 89.13 Distance ly 290.74 Bayer greek ι Tri
 
 
ORBITAL ELEMENTS SOLUTION #1
 
 
Period (P)5172.5y Periastron (T)4960.3y Semi-major axis (a)7.037a
Eccentricity (e)0.63 Inclination (i)110.3° Longitude of periastron (ω)277.5°
Node (Ω)158.8° Notesn ReferenceFMR2020c
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 69.3 3.920
2001 69.3 3.920
2002 69.2 3.920
2003 69.2 3.921
2004 69.1 3.921
2005 69.0 3.921
2006 69.0 3.921
2007 68.9 3.922
2008 68.9 3.922
2009 68.8 3.922
2010 68.7 3.923
2011 68.7 3.923
2012 68.6 3.923
2013 68.6 3.924
2014 68.5 3.924
2015 68.4 3.924
2016 68.4 3.925
2017 68.3 3.925
2018 68.3 3.925
2019 68.2 3.926
2020 68.1 3.926
2021 68.1 3.926
2022 68.0 3.927
2023 68.0 3.927
2024 67.9 3.927
2025 67.8 3.928
2026 67.8 3.928
2027 67.7 3.928
2028 67.6 3.929
2029 67.6 3.929
2030 67.5 3.930


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



 
 


wds02124%2B3018a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
ORBITAL ELEMENTS SOLUTION #2
 
 
Period (P)2647y Periastron (T)3164.1y Semi-major axis (a)4.502a
Eccentricity (e)0.74 Inclination (i)119.9° Longitude of periastron (ω)270.3°
Node (Ω)169.6° Notesn ReferenceFMR2020c
Equinox Last observation Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 69.4 3.912
2001 69.3 3.912
2002 69.2 3.912
2003 69.2 3.912
2004 69.1 3.913
2005 69.1 3.913
2006 69.0 3.913
2007 68.9 3.913
2008 68.9 3.913
2009 68.8 3.913
2010 68.8 3.913
2011 68.7 3.913
2012 68.6 3.913
2013 68.6 3.913
2014 68.5 3.913
2015 68.4 3.913
2016 68.4 3.913
2017 68.3 3.913
2018 68.3 3.913
2019 68.2 3.913
2020 68.1 3.913
2021 68.1 3.913
2022 68.0 3.914
2023 68.0 3.914
2024 67.9 3.914
2025 67.8 3.914
2026 67.8 3.914
2027 67.7 3.914
2028 67.7 3.914
2029 67.6 3.914
2030 67.5 3.914


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



 
 


wds02124%2B3018b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic