01350-2955 DAW  31AB (BB Scl)

 
 
01H 35M 00.96S -29 54' 38.0" P.A. 287.7 SEP 0.22 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
2015
Obs
105
Pa first
273
Pa last
237
P.A. Now (θ)
287.7°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.22"
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_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show BB Scl 193189 01350-2955 DAW 31 AB 1920 2015 105 288 0.2 7.51 8.94 1.43 Y <===
Show 193189 01350-2955 BU 1000 AB,C 1881 2015 50 0 1.7 7.20 11.50 4.30 Y
Show 193189 01350-2955 BU 1000 AB,D 1850 2015 16 19 130.8 7.26 8.80 1.54
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name
BB Scl
Constellation
Sculptor
SAO
193189
HIP
7372
HD
9770
GL
Gl 60A
CD
CD-30 529
CP
CP-30 181
Distance
21.63
Distance ly
70.56
last precise pa
236.7
last precise sep
0.183
 
 
ORBITAL ELEMENTS
 
 
Period (P)4.562y± 0.002 Periastron (T)1932.6y± 0.034 Semi-major axis (a)0.174a± 0.003
Eccentricity (e)0.317± 0.007 Inclination (i)19.5°± 2.9 Longitude of periastron (ω)244.6°± 9.4
Node (Ω)224.3°± 9.9 Note Grade1(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.176 353.5
2001 0.114 102.6
2002 0.178 221.9
2003 0.218 273.7
2004 0.203 320.3
2005 0.148 29.1
2006 0.130 170.4
2007 0.204 247.2
2008 0.217 293.3
2009 0.183 345.3
2010 0.119 82.9
2011 0.169 213.1
2012 0.217 268.1
2013 0.207 314.0
2014 0.157 17.7
2015 0.121 153.4
2016 0.198 240.7
2017 0.218 287.7
2018 0.189 337.7
2019 0.126 65.1
2020 0.158 203.2
2021 0.215 262.4
2022 0.211 307.9
2023 0.165 7.5
2024 0.115 134.2
2025 0.191 233.7
2026 0.219 282.2
2027 0.195 330.5
2028 0.135 49.5
2029 0.147 191.7
2030 0.211 256.6

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic