03520+0632 KUI  15AB (31 Tau)

 
 
03H 52M 00.23S +06 32' 05.6" P.A. 206.5 SEP 0.8 MAG 6.26,6.56 SP B5V DIST. 238.66 PC (778.51 L.Y.)
 
 
Coord 2000
03520+0632
Discov num
KUI  15
Comp
AB
Coord arcsec 2000
03 52 00.23 +06 32 05.6
Date first
1937
Date last
2016
Obs
158
Pa first
214
Pa last
210
P.A. Now (θ)
206.5°
Sep first
0.4
Sep last
0.9
Sep. Now (ρ)
0.8"
Mag pri
6.26
Mag sec
6.56
delta mag (ΔM)
0.3
Spectral class
B5V (blue-white)
Pri motion ra
+008
Sec motion ra
+008
Pri motion dec
-006
Sec motion dec
-006
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
03520+0632 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 111469 03520+0632 SCA 168 Aa,Ab 2002 2005 3 130 0.2 6.26
Show 31 Tau 111469 03520+0632 KUI 15 AB 1937 2016 158 206 0.8 6.26 6.56 0.30 Y <===
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
31 Tau
Constellation
Taurus
SAO
111469
HIP
18089
Tycho2
0072-01226-1
HD
24263
HR
1199
GC
4662
BD
BD+06 594
Flamsteed
31 Tauri
Flamsteed name
31 Tau
Distance
238.66
Distance ly
778.51
last precise pa
209.9
last precise sep
0.85
 
 
ORBITAL ELEMENTS
 
 
Period (P)871y Periastron (T)1909.3y Semi-major axis (a)0.925a
Eccentricity (e)0.66 Inclination (i)96.1° Longitude of periastron (ω)73.7°
Node (Ω)28.6° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2012
label rho theta
2000 0.740 207.4
2001 0.743 207.3
2002 0.747 207.3
2003 0.751 207.2
2004 0.755 207.2
2005 0.758 207.1
2006 0.762 207.1
2007 0.765 207.0
2008 0.768 207.0
2009 0.772 206.9
2010 0.775 206.9
2011 0.778 206.8
2012 0.781 206.8
2013 0.784 206.7
2014 0.787 206.7
2015 0.790 206.6
2016 0.793 206.6
2017 0.796 206.5
2018 0.799 206.5
2019 0.801 206.5
2020 0.804 206.4
2021 0.807 206.4
2022 0.809 206.3
2023 0.812 206.3
2024 0.814 206.2
2025 0.817 206.2
2026 0.819 206.2
2027 0.821 206.1
2028 0.824 206.1
2029 0.826 206.0
2030 0.828 206.0

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