12357-1650 FIN 368 Aa,Ab

 
 
12h 35m 42.81s -16° 49' 34.1" P.A. 111.00 sep 0.1 mag 6.83,9.93 Sp F4V dist. 73.75 pc (240.57 l.y.)
 
 
Coord 2000 12357-1650 Discov num FIN 368 Comp Aa,Ab Coord arcsec 2000 12 35 42.81 -16 49 34.1
Date first 1960 Date last 2021 Obs 23
Pa first 118 Pa last 110.8 P.A. Now (θ) 102.6°
Sep first 0.1 Sep last 0.14 Sep. Now (ρ) 0.117"
Mag pri 6.83 Mag sec 9.93 delta mag (ΔM) 3.1 Spectral class F4V (yellow-white)
Pri motion ra -086 Sec motion ra
Pri motion dec +017 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
12357-1650 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 157382 12 35 43 -16 49 34 FIN 368 Aa,Ab 2021 23 111 0.1 6.83 9.93 3.10 Y <===
Show HD 109557 157382 12 35 43 -16 49 34 HJ 1218 AB 2015 14 260 11.5 6.74 11.00 4.26
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Corvus SAO 157382 HIP 61463 Tycho2 6103-02397-1
Gaia DR2 3523321827945248384 HD 109557 BD BD-16 3499 Distance 73.75
Distance ly 240.57
 
 
ORBITAL ELEMENTS
 
 
Period (P)20.39y Periastron (T)2015.707y Semi-major axis (a)0.147a
Eccentricity (e)0.036 Inclination (i)100.2° Longitude of periastron (ω)87.7°
Node (Ω)290.9° Notes ReferenceTok2018e
Equinox2000 Last observation2018 Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 111.9 0.146
2001 108.7 0.145
2002 105.2 0.131
2003 100.5 0.106
2004 91.9 0.073
2005 67.8 0.039
2006 351.4 0.031
2007 314.3 0.063
2008 303.3 0.097
2009 297.8 0.125
2010 294.0 0.142
2011 290.8 0.147
2012 287.5 0.138
2013 283.4 0.116
2014 276.5 0.084
2015 258.7 0.045
2016 183.1 0.026
2017 134.4 0.059
2018 122.4 0.096
2019 116.9 0.125
2020 113.1 0.143
2021 110.0 0.147
2022 106.7 0.138
2023 102.6 0.117
2024 96.0 0.087
2025 81.0 0.052
2026 24.8 0.027
2027 323.0 0.049
2028 306.5 0.084
2029 299.6 0.115
2030 295.4 0.137


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



 
 


wds12357-1650b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic