07113-1032 A 2122 (HD 55118)

 
 
07h 11m 15.15s -10° 32' 29.7" P.A. 312.00 sep 0.1 mag 8.60,8.60 Sp B8V dist. 1041.67 pc (3397.93 l.y.)
 
 
Coord 2000 07113-1032 Discov num A  2122 Comp Coord arcsec 2000 07 11 15.15 -10 32 29.7
Date first 1910 Date last 2023 Obs 24
Pa first 135 Pa last 312.4 P.A. Now (θ) 322.4°
Sep first 0.3 Sep last 0.083 Sep. Now (ρ) 0.082"
Mag pri 8.60 Mag sec 8.60 delta mag (ΔM) 0 Spectral class B8V (blue-white)
Pri motion ra -015 Sec motion ra
Pri motion dec +002 Sec motion dec
Notes O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 55118 Constellation Monoceros SAO 152525 HIP 34702
Tycho2 5398-02605-1 Gaia DR2 3046379831581986560 HD 55118 ADS 5857
BD BD-10 1906 Distance 1041.67 Distance ly 3397.93
 
 
ORBITAL ELEMENTS
 
 
Period (P)263.5y Periastron (T)2021.72y Semi-major axis (a)0.192a
Eccentricity (e)0.582 Inclination (i)136.8° Longitude of periastron (ω)187.7°
Node (Ω)144.2° Notes ReferenceTok2020g
Equinox2000 Last observation2019 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 49.5 0.097
2001 46.2 0.095
2002 42.8 0.093
2003 39.3 0.091
2004 35.6 0.089
2005 31.8 0.088
2006 27.9 0.087
2007 23.8 0.085
2008 19.7 0.084
2009 15.5 0.084
2010 11.2 0.083
2011 6.8 0.083
2012 2.4 0.082
2013 358.0 0.082
2014 353.5 0.082
2015 349.1 0.082
2016 344.6 0.082
2017 340.1 0.081
2018 335.6 0.081
2019 331.1 0.081
2020 326.5 0.081
2021 321.9 0.080
2022 317.3 0.080
2023 312.5 0.079
2024 307.7 0.078
2025 302.8 0.078
2026 297.8 0.077
2027 292.8 0.076
2028 287.6 0.076
2029 282.4 0.076
2030 277.2 0.075
2031 271.9 0.075
2032 266.7 0.076
2033 261.5 0.076
2034 256.5 0.077
2035 251.5 0.079
2036 246.8 0.080
2037 242.2 0.082
2038 237.9 0.084
2039 233.7 0.086
2040 229.8 0.089
2041 226.1 0.091
2042 222.7 0.094
2043 219.4 0.097
2044 216.3 0.100
2045 213.5 0.104
2046 210.8 0.107
2047 208.2 0.110
2048 205.8 0.114
2049 203.6 0.117
2050 201.5 0.121


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds07113-1032c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic