05484+2052 STT 118 AB

 
 
05h 48m 22.36s +20° 52' 10.3" P.A. 320.00 sep 0.1 mag 6.32,7.57 Sp B9Vn dist. 167.5 pc (546.38 l.y.)
 
 
Coord 2000 05484+2052 Discov num STT 118 Comp AB Coord arcsec 2000 05 48 22.36 +20 52 10.3
Date first 1843 Date last 2018 Obs 66
Pa first 335 Pa last 319.6 P.A. Now (θ) 319.6°
Sep first 0.4 Sep last 0.149 Sep. Now (ρ) 0.149"
Mag pri 6.32 Mag sec 7.57 delta mag (ΔM) 1.25 Spectral class B9Vn (blue-white)
Pri motion ra +007 Sec motion ra
Pri motion dec -018 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
05484+2052 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 77578 05 48 22 +20 52 10 STT 118 AB 2018 66 320 0.1 6.32 7.57 1.25 Y <===
Show HD 38693 77578 05 48 22 +20 52 10 STTA 67 AB,C 2013 33 162 75.4 6.01 8.29 2.28
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Taurus SAO 77578 HIP 27421 Tycho2 1311-02653-1
Gaia DR2 3400081795838800896 HD 38670 HR 1997 GC 7266
ADS 4392 BD BD+20 1105 Distance 167.5 Distance ly 546.38
 
 
ORBITAL ELEMENTS
 
 
Period (P)231.5y Periastron (T)2003y Semi-major axis (a)0.365a
Eccentricity (e)0.834 Inclination (i)91.2° Longitude of periastron (ω)351.2°
Node (Ω)137.9° Notesn ReferenceTok2017c
Equinox2000 Last observation2016 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 144.9 0.015
2001 140.2 0.034
2002 138.9 0.050
2003 138.1 0.060
2004 137.4 0.060
2005 136.7 0.053
2006 135.6 0.040
2007 133.3 0.026
2008 124.7 0.011
2009 346.1 0.006
2010 326.2 0.021
2011 323.1 0.036
2012 321.8 0.051
2013 321.1 0.066
2014 320.7 0.080
2015 320.3 0.094
2016 320.1 0.108
2017 319.9 0.121
2018 319.8 0.134
2019 319.6 0.147
2020 319.5 0.159
2021 319.5 0.171
2022 319.4 0.183
2023 319.3 0.195
2024 319.3 0.206
2025 319.2 0.217
2026 319.2 0.228
2027 319.1 0.238
2028 319.1 0.249
2029 319.0 0.259
2030 319.0 0.269


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



 
 


wds05484%2B2052e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic