09179+2834 STF 3121 AB

 
 
09h 17m 53.45s +28 33' 37.7" P.A. 230.00 sep 0.4 mag 7.90,8.00 Sp K0 dist. 17.27 pc (56.33 l.y.)
 
 
Coord 2000 09179+2834 Discov num STF3121 Comp AB Coord arcsec 2000 09 17 53.45 +28 33 37.7
Date first 1832 Date last 2022 Obs 420
Pa first 20 Pa last 229.7 P.A. Now (θ) 236.7°
Sep first 0.9 Sep last 0.35 Sep. Now (ρ) 0.302"
Mag pri 7.90 Mag sec 8.00 delta mag (ΔM) 0.1 Spectral class K0 (yellow-orange)
Pri motion ra +053 Sec motion ra
Pri motion dec -511 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
09179+2834 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 80745 09 17 53 +28 33 38 STF 3121 AB 2022 420 230 0.4 7.90 8.00 0.10 Y <===
Show 80745 09 17 53 +28 33 38 ABT 6 AB,C 2001 3 44 173.2 7.32 12.87 5.55
Show IP Cnc 80745 09 17 53 +28 33 38 ABT 6 AB,D 2001 4 133 165.9 7.32 11.96 4.64
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name IP Cnc Constellation Cancer SAO 80745 HIP 45617
Tycho2 1957-00446-1 HD 79969 GC 12816 ADS 7284
GL Gl 340A BD BD+29 1883 Distance 17.27 Distance ly 56.33
 
 
ORBITAL ELEMENTS
 
 
Period (P)34.17y Periastron (T)1981y Semi-major axis (a)0.68a
Eccentricity (e)0.32 Inclination (i)76° Longitude of periastron (ω)131°
Node (Ω)24° Notesn ReferenceSod1999
Equinox2000 Last observation Grade1(1=Definitive, 9=Indet.)
label theta rho
2000 13.3 0.714
2001 15.4 0.754
2002 17.3 0.783
2003 19.0 0.800
2004 20.8 0.804
2005 22.5 0.793
2006 24.4 0.766
2007 26.4 0.722
2008 28.7 0.660
2009 31.6 0.578
2010 35.6 0.476
2011 42.2 0.356
2012 56.1 0.226
2013 99.5 0.124
2014 164.1 0.171
2015 186.4 0.294
2016 195.7 0.404
2017 201.3 0.479
2018 205.8 0.514
2019 210.0 0.514
2020 214.4 0.484
2021 219.7 0.433
2022 226.7 0.370
2023 236.7 0.302
2024 252.3 0.239
2025 276.3 0.199
2026 305.3 0.201
2027 328.7 0.244
2028 343.7 0.309
2029 353.1 0.383
2030 359.5 0.457


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



 
 


wds09179%2B2834a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic