01350-2955 DAW 31 AB

 
 
01h 35m 00.96s -29 54' 38.0" P.A. 258.00 sep 0.2 mag 7.51,8.94 Sp K1V dist. 21.63 pc (70.56 l.y.)
 
 
Coord 2000 01350-2955 Discov num DAW  31 Comp AB Coord arcsec 2000 01 35 00.96 -29 54 38.0
Date first 1920 Date last 2020 Obs 109
Pa first 273 Pa last 257.5 P.A. Now (θ) 7.2°
Sep first 0.2 Sep last 0.204 Sep. Now (ρ) 0.159"
Mag pri 7.51 Mag sec 8.94 delta mag (ΔM) 1.43 Spectral class K1V (yellow-orange)
Pri motion ra +157 Sec motion ra
Pri motion dec +115 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
01350-2955 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 193189 01 35 01 -29 54 38 DAW 31 AB 2020 109 258 0.2 7.51 8.94 1.43 Y <===
Show BB Scl 193189 01 35 01 -29 54 38 BU 1000 AB,C 2020 54 7 1.6 7.20 11.50 4.30 Y
Show 193189 01 35 01 -29 54 38 BU 1000 AB,D 2015 16 19 130.8 7.26 8.80 1.54
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name BB Scl Constellation Sculptor SAO 193189 HIP 7372
Tycho2 6428-01616-1 Gaia DR2 5022972468946212352 HD 9770 GC 1920
GL Gl 60A CD CD-30 529 CP CP-30 181 Distance 21.63
Distance ly 70.56
 
 
ORBITAL ELEMENTS
 
 
Period (P)4.5595y± 0.0014 Periastron (T)2010.127y± 0.006 Semi-major axis (a)0.1669a± 0.0006
Eccentricity (e)0.3142± 0.0022 Inclination (i)11.9°± 1.7 Longitude of periastron (ω)298.9°± 6
Node (Ω)168.6°± 6.1 Notesn ReferenceTok2021b
Equinox Last observation Grade1(1=Definitive, 9=Indet.)
label theta rho
2000 352.2 0.174
2001 106.7 0.113
2002 221.0 0.170
2003 275.3 0.213
2004 320.4 0.204
2005 29.1 0.140
2006 170.0 0.131
2007 248.0 0.195
2008 294.7 0.216
2009 344.5 0.182
2010 87.6 0.114
2011 212.2 0.162
2012 269.8 0.210
2013 314.7 0.208
2014 17.4 0.149
2015 155.1 0.124
2016 241.4 0.189
2017 289.5 0.216
2018 337.4 0.189
2019 69.5 0.118
2020 202.5 0.154
2021 264.2 0.207
2022 309.1 0.211
2023 7.2 0.159
2024 138.4 0.118
2025 234.3 0.182
2026 284.3 0.215
2027 330.8 0.195
2028 52.9 0.125
2029 191.7 0.146
2030 258.4 0.203


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



 
 


wds01350-2955g.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic